My first posting of the PK232 Command List (in uuencoded format)
looks like it got trashed. I received numerous requests for a mailing
of the ASCII version, so I am posting the ASCII in 4 parts. This posting
contains PART 1. Combine the parts as you see fit. Please feel free
to upload the file to local packet BBS's or USENET sites where it will
be available to PK232 owners.

\paul
WA3TLD
-------------------------------------------------------------------------
PK232CMD.LST   PART 1
-------------------------------------------------------------------------


The following information was obtained from the AEA PK232 Operations Manual,
the PK232 Technical Reference Manual, and the various updates that were
supplied with firmware upgrades. The reason for compiling this listing was my
need to have one combined reference for the entire PK232 command set in
electronic form which could be searched or read from within a terminal
program. The PK232 command listing is plain vanilla ASCII with no hidden
control codes or formatting instructions. I have contacted AEA, and they
have given me permission to release this information in electronic form,
provided that it is placed into the public domain and not sold. There is
no information in this listing that cannot be obtained from one of the AEA
documents or manuals for the PK232; this listing just makes it a little
easier to search/find info on particular PK232 commands options etc. I have
made reasonable effort to insure that the information contained in the listing
is correct and accurate. I DONNN'TT Makee Mastakes. If you find one, PLEASE
send your correction to:

                        [email protected]
                                 or
                        [email protected]
                                 or
                        WA3TLD @ NO3M.#WPA.PA.USA.NA

Enjoy!

\paul

Paul Dujmich
2103 Hammerschlag Hall
Dept. of Electrical and Computer Engineering
Carnegie Mellon University
5000 Forbes Ave.
Pittsburgh, PA. 15213

============================================================================

                              PK232 COMMAND SUMMARY
                              (Version 1.0  4-30-91)

       ========================= MULTIMODE COMMANDS ==========================

       AAB  text       Default: empty
               Modes: Baudot, Ascii, Amtor
               text = any ascii text up to 17 characters.
               AAB sends "text" automatically in response to a "WRU" command
               from the distant station.

       ACRDISP  'n'    DEFAULT: 80
                MODES: ALL
                'n' = 0 to 255
                'n' specifies the screen or printer width (in columns).
                '0' disables this function.
                After 'n' characters have been printed, the PK232 sends
                a <CR><LF> sequence to the computer or terminal.
                For MORSE Mode: Received data will be broken up into
                word boundries if possible. PK232 generates a <CR> when
                the first space is received after column X. If ALFDISP is
                also on, PK232 also generates a <LF>.
                Column X is 12 less than the ACRDISP value. If ACRDISP
                is set to 0, then column X = 60.


       ACRRTTY  'n'    DEFAULT: 71 (69 in AMTOR)
                 MODES: Baudot, Ascii Rtty
                'n' = 0 to 255
                'n' specifies the number of characters on a line, after
                    which, a <CR> is automatically inserted in the
                    transmitted text.
                '0' disables this function



       AFILTER (ON/OFF)        DEFAULT: OFF
               MODES: ALL
               ON - The ASCII characters specified by MFILTER are filtered
                    out and never sent to the terminal or computer.
               OFF - Characters specified by MFILTER are only filtered
                     from monitored packets.
               If ECHO is ON, and the terminal or computer sends a filtered
               character, the PK232 WILL echo it back to the computer or
               terminal.
               CAUTION: AFILTER must be OFF for binary file transfers.



       ALFDISP (ON/OFF)        DEFAULT: ON
               MODES: All
               ON - A line feed <LF> character is sent to the terminal
                    after each carrage return <CR> character. Each
                    line feed received is ignored.
               OFF - A <LF> is not sent to the terminal after each <CR>
               Affects the local display only, and does not affect the
               data transmitted in any mode. Affects received packets as
               well as text typed in.


       ALFRTTY (ON/OFF)        DEFAULT: ON
               MODES: Baudot, Ascii Rtty
               ON - A <LF> character is sent after each <CR> character.
               OFF - A <LF> is not sent after each <CR>


       AWLEN 'n'       DEFAULT: 7
               MODES: All
               'n' = 7 or 8
               'n' = number of data bits per word
               The 'RESTART' command must be issued before a change in
               word length will take effect.


       BKONDEL (ON/OFF)        DEFAULT: ON
               MODES: All
               Determines how character deletion is displayed in command
               or Converse modes.
               ON - The sequence <BACKSPACE><SPACE><BACKSPACE> is echoed
                    when a character is deleted from the input line.
               OFF - The <BACKSLASH> <\> character is echoed when a
                    character is deleted from the input line.
               Set to 'ON' for video terminals or computers.
               Set to 'OFF' for printers.


       CALIBRATE
               Starts the modem calibration routine.
               PK232 shows on screen display of AFSK generator tone
               frequencies (in Hz). The frequency and calibration pot
               number associated with that tone are displayed.
               Commands:
                         K - Toggles transmitter PTT line on and off.
                         Q - Quits the calibration routine.
                         H - Toggles the transmitted audio tones between
                             wide shift (1000 hz), and narrow shift (200 hz).
                    SPACE> - Toggles the transmitted audio tone between
                             MARK (low tone), and SPACE (high tone).
                         D - Alternates the transmitted mark and space tones
                             at a rate set by the radio (HB) baud rate.
                         'D OFF' transmits a continuous mark or space tone.


       CANLINE 'n'     DEFAULT: $18 <CTRL-X>
               MODE: All
               'n' = $00 to $7F (0 to 127 decimal)
               'n' specifies an ASCII character code.
               Sets the CANCEL-LINE input editing command character.
               When CANLINE is used, the current line is terminated with a
               <\>, and a new command prompt appears.


       CCITT   (ON/OFF)        DEFAULT: ON
               MODE: Baudot Rtty.
               ON - Characters typed or loaded from disk are translated into
                    CCITT International Telegraph Alphabet #2 before being
                    sent.
               OFF - Characters sent to PK232 are not translated, but remain
                     in the American standard Baudot format (Typically
                     Western Union).



       CODE n          DEFAULT: 0
               MODES: Baudot, AMTOR, MORSE
               n = 0 to 5 specifies a code to use.
               CODE     Meaning             MORSE    BAUDOT    AMTOR
               ---------------------------------------------------------
               0        International       RX/TX     RX/TX    RX/TX
               1        U.S Teleprinter       -       RX/TX      -
               2        Cyrillic            RX        RX       RX
               3        Transliterated
                        Cyrillic            RX        RX       RX
               4        Katakana            RX/TX       -         -
               5        Transliterated
                        Katakana            RX          -          -
               (See pages N-4 - N-7 for more details concerning codes)



       COMMAND 'n'     DEFAULT: $03 <CTRL-C>
               MODES: All
               Used to change the command mode entry character.
               'n' = $00 to $7F  (0 to 127 decimal)
               'n' specifies an ASCII character code.



       CONVERSE
               MODES: All
               Causes the PK232 to switch from command mode to converse
               mode.
               Link connections in packet and AMTOR are not affected.



       CRADD (ON/OFF)  DEFAULT: OFF
               MODES: Baudot Rtty
               Permits you to setup the PK232's newline sequence so that
               an additional carrage return as added automatically at
               the end of each typed line.
               ON - Send <CR CR LF> in Baudot Rtty
               OFF - Send <CR LF> in Baudot Rtty
               The double CR is required in some rtty services such as
               in MARS operation.



       CWID  'n'       DEFAULT: $06  <CTRL-F>
               MODES: Baudot/ASCII Rtty/AMTOR
               Lets you change the 'send cwid' control character, typed
               at the end of a Baudot or ASCII Rtty or AMTOR keyboard
               diaglog, or text file stored on disk.
               When character 'n' is seen by the PK232, it switches to CW
               mode, and sends your call sign at the speed set by MSPEED.
               After call sign has been sent, PK232 returns to Baudot
               or ASCII Rtty receive, in command mode.
               CWID ON Activates this function.
               CWID OFF deactivates the function.



       DAYTIME  date&time      DEFAULT: Not set
               MODES: All
               Sets the PK232 internal clock to the current date and
               time.
               Format for entering date and time:
                              DAYTIME YYMMDDhhmm
                              (year, month, day, hour, minute)
               All codes must have 2 digits. For numbers 0-9 add leading
               zeros.
               If DAYTIME has not been set, and a <CTRL-T> is pressed,
               PK232 sends an <*>.



       DAYSTAMP (ON/OFF)       DEFAULT: OFF
               MODES: All
               Activates the date in CONSTAMP and MSTAMP.
               ON - The date is included in CONSTAMP AND MSTAMP
               OFF - Only the time is includes in CONSTAMP and MSTAMP



       DCDCONN  (ON/OFF)       DEFAULT:OFF
               MODES: Packet and AMTOR
               Defines how the DCD (Data Carrier Detect) signal affects
               pin 8 of the RS-232 interface.
               ON - RS-232 cable pin 8 follows the state of the CON LED.
               OFF - RS-232 cable pin 8 is permanently set high (active)



       DELETE  (ON/OFF)        DEFAULT: OFF
               MODES: All
               Selects the key to use for deleting while editing.
               ON - <DELETE> ($7F) key is used for deleting text.
               OFF - <BACKSPACE> ($08) is used for deleting text.
               BKONDEL command controls how the PK232 indicates deletion.
               You cannot use the DEL key to delete text before the beginning
               of a line.
               Use the PASS character to delete <CR> characters that have
               been typed into the text.
               To see a corrected display of the edited line, use the
               redisplay-line character which is set by the REDISPLAY
               command.



       DIDDLE  ON/OFF     (DEFAULT OFF)
               MODES: Baudot, ASCII
               ON - In Baudot, PK232 sends LTRS character while idling.
                    In ASCII, PK232 sends NULL ($00) while idling.
               OFF - No characters are sent while idling in transmit.



       DISPLAY [class]
               MODES: Command Mode
               'class' can be one of the following:

               (A)sync  Display asynchronous port parameters.
               (C)character  Display special characters.
               (F)ax    Display Facsimile parameters.
               (I)d     Display ID parameters.
               (L)ink   Display Link parameters.
               (M)onitor  Display monitor parameters.
               (R)tty     Display Baudot/ASCII/RTTY, AMTOR and MORSE
                          parameters.
               (T)iming   Display timing parameters.
               (Z)        Display the entire command parameter list.



       EAS (ON/OFF)    DEFAULT: OFF
               MODES: Baudot, ASCII Rtty, AMTOR and MORSE
               ECHO AS SENT functions in all modes except PACKET.
               ON - Display characters as actually sent on the air by PK232.
               OFF - Display characters as sent to the PK232 by the computer.

               If EAS is ON, only upper case characters will be displayed,
                             representing the actual data sent to the
                             distant station.
               For AMTOR Mode A (ARQ) - If EAS is ON, characters are displayed
               on the screen ONLY after they are Ack'd by the distant station,
               no matter how fast you type, (3 at a time).
               Nulls ($00) are not echoed.



       ECHO (ON/OFF)   DEFAULT: ON
               MODES: All
               Controls local echoing by the PK232 when it is in command or
               converse mode. Local echoing is disabled in TRANSPARENT mode.
               ON - Characters received from the computer ARE echoed by the
               PK232.
               OFF - Characters are not echoed.



       ESCAPE (ON/OFF)         DEFAULT: OFF
               MODES: ALL
               Selects the character to be output when an <ESCAPE> character
               is to be sent to the terminal.
               ON - The <ESCAPE> character, ($1B) is output as "$" ($24)
               OFF - The <ESCAPE> character is output as <ESCAPE> ($1B)



       FLOW  (ON/OFF)          DEFAULT: ON
               MODES: All
               ON - Flow control is active. Any character typed on the
                    keyboard causes output from the PK232 to the terminal
                    to stop until any of the following conditions exist:
                          1. A packet is forced in CONVERSE mode.
                          2. A line is completed in COMMAND mode.
                          3. The packet length (PACLEN) is exceeded.
                          4. The terminal output buffer fills up.

               OFF - Type in flow control is NOT active.




       FULLDUP (ON/OFF)        DEFAULT: OFF
               MODES: ALL
               ON - Full Duplex mode is ENABLED.
               OFF - Full Duplex mode is DISABLED.
               When full duplex is DISABLED, the PK232 uses the DCD
               (data carrier detect) signal from it's modem to avoid
               collisions. PK232 acknowledges multiple packets in a single
               transmission with a single acknowledgment.
               When full duplex is ENABLED, PK232 ignores the DCD signal,
               and acknowledges packets individually.



       HELP
               MODES: ALL
               Displays the more important PK232 commands.



       HEREIS 'n'           DEFAULT: $02 (CTRL-B)
               MODES: BAUDOT, ASCII, AMTOR
               n = hexidecimal representation ($01-$7F) that causes the
                   AAB string to be sent in the middle of transmitted
                   text.


       HOST  (ON/OFF)          DEFAULT: OFF
               MODES: ALL
               Puts PK232 in 'host mode'.
               ON - PK232 goes into HOST mode.
               OFF - PK232 operates as a normal TNC.
               To exit host mode, send:  3 <CTRL-C> characters or type
               <CTRL-A> O H O N <CTRL-W>
               Sending a BRK signal will not exit PK232 from host mode.
               Turning the PK232 on or doing a RESTART command while in
               HOST mode causes the TNC to issue a RESTART response
               ($01 $4F R T $00 $17)



       LOCK
               MODES: MORSE/Baudot/AMTOR/FAX
               Instructs the PK232 to measure the speed of the received
               MORSE code signals, and lock it's timing to the speed of
               the incoming signals. LOCK also forces LETTERS shift in
               Baudot and AMTOR modes.




       MFILTER n1 [,n2 [,n3 [,n4 ]]]]          DEFAULT: $80
               MODES: MORSE/Baudot/ASCII/AMTOR/PACKET
               n = $00 to $80 (0 to 128 decimal)
               n  specifies an ASCII character code.
               Up to 4 characters may be specified.
               n = $80 (Special Value) - All characters in the range $80
                   to $FF, as well as control characters , except for
                   <CR> ($0D), Linefeed <LF> ($0A), and TAB ($09), are
                   filtered out and not sent to the terminal or computer.




       MARSDISP (ON/OFF)       DEFAULT: OFF
               MODES: Baudot and AMTOR RTTY.
               Permits the operator to detect and display every character,
               including LTRS and FIGS codes sent by the other station.
               ACRDISP and ALFDISP can be turned off to prevent carrage
               returns and line-feeds from being sent to the RS-232 port.
               ON - PK232 translates LTRS character to a <CNTRL-O> and
               FIGS character to a <CTRL-N> and sends these to the terminal.
               OFF - PK232 does not display LTRS and FIGS codes.



       MWEIGHT 'n'        (DEFAULT: 10)
               MODES: ALL except PACKET
               n = 5 to 15    Specifies the ratio of dot length to inter-
                              element space length.
                              n = 10 results in a 1:1 dot space ratio.
                              n = 5 results in a .5:1 dot space ratio.
                              n = 15 results in a 1.5:1 dot space ratio.
               MWEIGHT applies to MORSE mode, and to the CW id's of all
               other modes EXCEPT PACKET.




       NEWMODE (ON/OFF)        DEFAULT: ON
               MODES: ALL
               Determines how the Pk232 behaves when the link is broken.
               ON - PK232 returns to command mode upon disconnect.
               OFF - PK232 does not return to command mode upon disconnect.




       NOMODE (ON/OFF)         DEFAULT: OFF
               MODES: ALL
               ON - NEWMODE function is ignored, OK232 switch mode commands
                    work only upon explicit command.
               OFF - PK232 changes mode according to NEWMODE.




       NUCR (ON/OFF)           DEFAULT: OFF
               MODES: All
               Causes the PK232 to send <NULL> characters  ASCII ($00), to
               the computer or terminal. This function permits the PK232
               to be used with a Teletype machine or other mechanical type
               of terminal that requires a time delay after a <CR> is sent
               from the PK232. The time delay gives the mechanical carrage
               time to return to the home position.
               ON - <NULL> characters are sent to the terminal following
                    a <CR> character.
               OFF - <NULL> characters are not sent to the terminal following
                      a <CR> character
               The NULLS command sets the number of individual nulls to
               be sent for the NUCR command.




       NULF            DEFAULT: OFF
               MODES: ALL
               ON - <NULL> characters are sent to the terminal following
                    a <LF> character.
               OFF - <NULL> characters are NOT sent to the terminal
                     following a <LF> character.
               This command sends the <NULL> character ($00) to the terminal
               or computer after every <LF> character.
               This function permits the PK232
               to be used with a Teletype machine or other mechanical type
               of terminal that requires a time delay after a <LF> is sent
               from the PK232. The time delay gives the mechanical carrage
               time to perform a line feed.
               The NULLS command sets the number of null character that
               will be sent after each <LF> character.




       NULLS  'n'      DEFAULT: 0 (zero)
               MODES: All
               Specifies the number of <NULL> characters ($00) that will
               be sent to the terminal after a <CR> or <LF> is sent.
               'n' = 0 to 30  number of nulls to be sent.
               Nulls are sent from the PK232 to the terminal only
               during converse and command modes.




       NUMS
               MODES: Baudot, AMTOR
               Forces PK232 into Figures case in Baudot and AMTOR receive.



       OPMODE
               MODES: ALL
               Shows the current PK232 mode of operation and system status.




       PARITY  'n'             DEFAULT: 3 (even)
               MODES: ALL
               'n' = 0 to 3  selects a parity option.
               0 = no parity
               1 = odd parity
               2 = no parity
               3 = even parity

               The parity bit is stripped automatically on input and is not
               checked in command and converse modes.
               In TRANSPARENT mode, all 8 bits, including parity, are
               transmitted in packets. When no parity is selected, and
               AWLEN is 7, the 8th bit is sent as a "0".




       PROUT (ON/OFF)          DEFAULT: OFF
               ON - All text characters, including terminal echoes, are sent
                    to the parallel printer if PRCON is also ON.
                    Keyboard input is still accepted.
               OFF - All text and data is sent to the terminal through
                     the serial port.
                     This command is useful when using a dumb terminal
                     with the PK232 for getting a hard printed copy of what
                     is being received by the PK232.



       RCVE
               MODES: Baudot and ASCII Rtty
               Switches PK232 from transmit to receive, when used in the
               command mode.
               (CTRL-C enters the command mode)




       RECEIVE 'n'     DEFAULT: $04 <CTRL-D>
               MODES: Baudot/ASCII/MORSE/AMTOR
               'n' = 0 to $7F (0 to 127 decimal)
               'n' specifies an ASCII character code
               The RECEIVE command let's you specify a character that can
               be inserted in your typed text or disk file. When this
               character is read by the PK232, PK232 switches from
               transmit to receive, and returns to command mode.




       REDISPLA 'n'            DEFAULT: $12 <CTRL-R>
               MODES: All
               'n' = $00 to $7F  (0 to 127 decimal)
               'n' is the ASCII code for the character you'll use to
                   re-display the current input line.
                   REDISPLA causes the line you just typed to be re-displayed.




       RESET
               MODES: ALL
               Resets all parameters in the PK232 to default prom settings.
               All personalized parameters are LOST.
               RESTART will reinitialize the PK232 from battery backed up
               ram, keeping all the user personalized parameters.




       RESTART
               MODES: ALL
               Reinitializes the PK232 using the defaults stored in the
               battery backed up ram. RESTART has the same effect as
               turning the PK232 off then back on.




       RXREV (ON/OFF)          DEFAULT: OFF
               MODES: Baudot/ASCII/AMTOR
               ON - Received data polarity is reversed (mark-space reversal).
               OFF - Received data polarity is normal.
               Type "RXREV TOG" to toggle the polarity of the received
               signal when trying to decode an unknown Baudot signal.





       SIGNAL
               MODES: ASCII/AMTOR/BAUDOT
               Causes Pk232 to enter the SIAM Signal Analysis mode.
               After about 10 seconds, the screen will display the predicted
               signal type and confidance factor.
               The signal type can be ASCII, AMTOR, ALIST, Baudot,
               synchronous, noise, 6-bit.
               The confidance factor ranges from 0.1 to 0.99.





       START 'n'               DEFAULT: $11 <CTRL-Q>
               MODES: ALL
               'n' = $00 to $7F (0 to 127 decimal)
               'n' specifies an ASCII code  for the User Start character
                   that you want to use to restart the output from the
                   PK232 to the terminal, after it has been halted by
                   the User Stop character.
                   STOP sets the User Stop character.
                   If User START or User STOP characters are $00, then
                   software flow control to the PK232 is disabled.
                   PK232 will then respond only to hardware flow control,
                   (CTS). If the same character is used for both START and
                   STOP character, then the PK232 toggles between start
                   and stop when the character is read.
---------------------------------------------------------------------------
PK232CMD.LST   (PART 2)
---------------------------------------------------------------------------




       STOP 'n'                DEFAULT: $13 <CTRL-S>
               MODES: ALL
               'n' = $00 to $7F  (0 to 127 decimal)
               "n" specifies an ASCII character code for the User STOP
                   character. (See explination for START).




       TBAUD 'n'               DEFAULT: 1200 bauds
               MODES: ALL
               'n' specifies the PK232 to Computer baud rate.
               The baud rate set by TBAUD will take effect upon the next
               power-on or RESTART command.
               Baud Rates: 45, 50, 57, 75, 100, 110, 150, 200, 300, 400,
                           600, 1200, 2400, 4800, 9600.




       TCLEAR
               MODES: ALL
               For Baudot/ASCII/AMTOR/MORSE - TCLEAR clears the PK232
                           transmit buffer and cancels any further
                           transmission of data.
               For PACKET mode - All data is cleared except for a few
                            remaining packets.
               TCLEAR must be used from COMMAND MODE.





       TIME 'n'        DEFAULT: $14 <CTRL-T>
               MODES: ALL
               'n' = $00 to $7F ( 0 to 127 decimal)
               'n' specifies the control character for embedding the
               TIME command into your message text or file.
               At transmit time, the PK232 reads the embedded control
               code (default = CTRL-T), reads the time from the PK232
               internal clock, and then sends the time to the radio
               in the data transmission code currently in use at the time.
               If DAYSTAMP is ON, the date is transmitted with the time.




       TRACE (ON/OFF)          DEFAULT: OFF
               MODES: PACKET/FAX
               ON - Trace function is activated.
               OFF - Trace function is disabled.
               Activates AX.25 protocol display. When TRACE is ON, all
               received frames are displayed in their entirety, including
               all header information. (See pg 6-101 of manual for more
               details).
               If TRACE is ON, PRFAX is OFF and the mode is FAX, the graphics
               escape sequences and dot data are sent to the terminal with
               each byte expanded to 2 hexadecimal characters (ascii hex
               dump). This gets around the limitation of many terminal
               programs, that do not allow 8-bit data to be saved to disk as
               an ASCII file. A small program could be used to re-translate
               the ascii hex back into a binary file. (pg M-29 of Pk232
               manual has small IBM Basic program to do this.)





       TRFLOW (ON/OFF)         DEFAULT: OFF
               MODES: ALL
               ON - Software flow control for the computer or terminal
                    can be activated in Transparent mode.
               OFF - Software flow control for the computer or terminal
                     is disabled in Transparent mode.
               If TRFLOW is ON, START and STOP determine the flow control
               characters to use for software flow control in Transparent
               mode.
               If TRFLOW is OFF, Only hardware flow control is available
               to the computer, (RTS, CTS). All characters received by
               the PK232 are transmitted as data.





       TXDELAY n       DEFAULT: 30
               MODES: Packet, Baudot, and ASCII.
               n = 0 to 120 ten millisecond intervals.
               TXDELAY sets the delay between PTT and and the start of
               transmitted data. ARQ still uses ADELAY.





       TXREV (ON/OFF)          DEFAULT: OFF
               MODES: Baudot/ASCII/AMTOR
               ON - Transmit data polarity is reversed. (mark-space reversal).
               OFF - Transmit data polarity is normal.
               If TXREV is ON, mark and space are reversed in the AFSK and
               FSK transmitted signals.



       WIDESHFT (ON/OFF)       DEFAULT: OFF
               MODES: Baudot/ ASCII Rtty
               ON - RTTY tones are shifted 1000 Hz.
               OFF - RTTY tones are shifted 200 Hz (emulates 170 Hz shift).


       WORDOUT (ON/OFF)        DEFAULT: OFF
               MODES: All modes except PACKET.
               Determines whether or not you can edit while entering text
               for transmission.
               ON - Typed characters are held in the transmit buffer until
                    a space character or punctuation is typed.
               OFF - Typed characters are sent directly to the transmitter.
               The ENQ character ($05) <CTRL-E> will also cause the
               release of a word, as will space, CR, LF, tab, RECEIVE or
               CWID character.



       WRU (ON/OFF)    DEFAULT: OFF
               MODES: Baudot/ASCII/AMTOR ARQ
               ON - Your answerback is sent after a distant station's WRU?
               OFF - Your answerback is not sent after a distant station's
                     WRU?
               If WRU is ON, PK232 sends the text in AAB text field.
               In AMTOR ARQ, your answerback will automatically send
               "+?", the changeover command, to the distant station
               to maintain the link.
               NOTE: In AMTOR, WRU is ALWAYS ON.



       XFLOW (ON/OFF)          DEFAULT: ON
               MODES: ALL
               ON - XON/XOFF software flow control is activated.
               OFF - XON/XOFF flow control is disabled. Hardware flow
                     control is enabled.
               If XFLOW is ON, the terminal or computer is expected to
               respond to the PK232  START and STOP characters defined by
               the XON and XOFF commands.
               If XFLOW is OFF, the PK232 sends hardware flow commands
               via the RTS hardware line.
               For full hardware control in BOTH directions, set START,
               STOP, XON, and XOFF to $00.



       XOFF 'n'        DEFAULT: $13 <CTRL-S>
               MODES: ALL
               'n' = $00 to $7F  (0 to 127 decimal)
               Selects the STOP character to be used to stop input from the
               computer or terminal.


       XON 'n'         DEFAULT: $11  <CTRL-Q>
               MODES: ALL
               'n' = $00 to $7F  (0 to 127 decimal)
               Selects the PK232 START character that is sent to the
               computer or terminal to restart input from that device.


       ========================= PACKET COMMANDS =============================

       3RDPARTY  ON/OFF       DEFAULT:OFF
               ON - The Mailbox BBS will handle 3rd party traffic.
               OFF - This feature is disabled.



       8BITCONV (ON/OFF)       DEFAULT: OFF
               Permits packet transmission of 8 bit data in Converse Mode.
               ON - The high order bit is not stripped in Converse Mode.
               Off - The high order bit is stripped in Converse Mode

       ACKPRIOR  ON/OFF         DEFAULT: OFF
               ON - Priority acknowledgement is enabled.
                    When a busy channel condition clears (DCD LED OFF),
                    DATA Acknowledgements will be sent immediately, while
                    data and poll bits are held off long enough to prevent
                    collision with the data acks. ACKS are given priority
                    so that fewer acks will collide with data from other
                    stations preventing useless retries.
                    Digi-peated frames are still sent immediately.
               OFF - This feature is disabled.



       ACRPACK (ON/OFF)        DEFAULT: ON
               ON -  The send packet character (normally <CR>, is added
                     to all packets sent in Converse Mode.
               OFF - The send packet character is not added to packets.

       ALFPACK (ON/OFF)        DEFAULT: OFF
               ON - A <LF> character is added to outgoing packets following
                    each <CR> transmitted in the packet.
               OFF - A <LF> is not added to outgoing packets.
               Affects outgoing packets only, does not affect the local
               display.

       AUDELAY 'n'
               Sets delay between PTT going active, and the start of
               transmit AFSK audio tones.
               n = 0 to 120 (10 ms intervals).
               AUDELAY must always be less than TXDELAY by a setting of 10.


       AX25L2V2 (ON/OFF)       DEFAULT: ON
               ON - PK232 uses AX.25 Level 2 Version 2.0 protocol
               OFF - PK232 uses AX.25 Level 2 Version 1.0 protocol

       AXDELAY 'n'     DEFAULT: 0
               'n' = 0 to 180
               'n' = specifies a keyup delay for voice repeater operation
                     in ten-millisecond intervals.
                     Causes PK232 to wait for a delay period (in addition
                     to TXDELAY), after keying the transmitter, and before
                     data is sent.

       AXHANG 'n'      DEFAULT: 0
               'n' = 0 to 20
               'n' specifies a voice repeater hang time in 100 mili-second
                   intervals.


       BBSMSGS (ON/OFF)        DEFAULT: OFF
               ON - Makes the PK232 status messages look like the TAPR
                    style output.
               OFF - The PK232 status messages work as before.



       BEACON EVERY|AFTER 'n'  DEFAULT: 0
               Sets the condition under which the packet beacon will be
               transmitted.
               EVERY - Send the beacon at regular intervals.
               AFTER - Send the beacon once after that specified time
                       interval without packet activity.
               'n' = 0 to 250
               'n' sets beacon timing in ten second intervals.
               '0' Turns off the beacon completely.
               A beacon frame includes the text you enter with the
               'BTEXT' command. The Beacon packet is addressed to
               'CQ' or other address specified by 'UNPROTO'.

       BTEXT  text     DEFAULT: Empty
               Sets the text portion of the beacon packet.
               text = up to 120 characters and spaces.
               A multiple line message can be sent by including a <CR>
               character in the text. <CR> is inserted by typing the
               PASS character before the <CR>.
               The PASS character is sent by the PASS command.
               '%', '&', 'N', 'NO', 'NONE', or 'OFF' will clear the
               BTEXT text.

       CANPAC  'n'     DEFAULT: $19 <CTRL-Y>
               Sets the CANCEL-PACKET input editing command character.
               'n' = $00 to $7F (0 to 127 decimal)
               'n' specifies an ASCII character code.
               Only a packet that is currently being entered can be
               canceled. When a packet is cancelled, the line is
               terminated by a <\> and a <NEWLINE>.
               The CANCEL-PACKET character also cancels the display
               output in Command Mode. Type CANCEL-PACKET again to
               restore the display output.

       CASEDISP 'n'    DEFAULT: 0 (as is)
               Sets the case of the characters that the PK232 sends to the
               terminal.
               'n' = 0  'As is' characters are not changed.
               'n' = 1  'lower' characters are displayed in lower case only.
               'n' = 2  'UPPER' characters are displayed in upper case only.

       CBELL   (ON/OFF)        DEFAULT: OFF
               ON - Three bell characters ($07 CTRL-G) are sent to the
                    terminal with the **** CONNECTED TO, or ****DSCONNECTED
                    FROM messages, when a connection is established, or
                    terminated.
               OFF - Bell characters are not sent with the connect
                     message.
               CBELL sends bell characters on disconnect as well as connect.


       CFROM   all, none, yes/no, call1 [call2..]    DEFAULT: All
               Determines how PK232 responds to connect requests.
               call all, none, YES list, NO list
                      (list up to 8 callsigns seperated by comma's)
               CFROM NONE - rejects all connect requests.
               CFROM ALL  - Accepts all connect requests.
               CFROM NO call1, call2, call3 ......
               CFROM YES call1, call2, call3 .....
               CFROM <%> or <&> or OFF clears the CFROM arguments.

       CHCALL  (ON/OFF)        DEFAULT: OFF
               Displays the callsign of the connected-to station after
               the channel identifier.
               ON - Call sign of distant station is displayed in multiple
                    connection operation.
               OFF - Call sign of the distant station is not displayed.


       CHDOUBLE (ON/OFF)       DEFAULT: OFF
               Displays received CHSWITCH characters as double characters.
               ON - Received CHSWITCH haracters appear twice.
               OFF - CHSWITCH characters only appear once.
               NOTES: Set CHDOUBLE ON when operating with multiple
                      connections, to tell the difference between CHSWITCH
                      characters received from other stations, and those
                      generated by your PK232.
                      CHSWITCH character must not be one of the channel
                      numbers (0-9).

       CHECK 'n'      DEFAULT: 30
               Sets a timeout value for a packet connection, and depends on
               the setting of AX25L2V2.
               'n' = 0 to 250 (check time in ten second intervals)
               0 = Zero disables this feature.


       CHSWITCH  'n'   DEFAULT: $00
               Selects the characters used by both the PK232 and the user
               to show that a new connection channel is being addressed.
               'n' = $00 to $FF (0-255 decimal)
               'n' = ASCII character code.

       CMDTIME  'n'    DEFAULT: 10 (1000 ms)
               Sets the timeout value in TRANSPARENT mode.
               A guard time of 'n' seconds is allowed to escape from
               transparent mode to command mode, while permitting any
               character to be sent as data.
               'n' = 0 to 250 (timeout value in 100 ms intervals)
               'n' = 0  Exit from transparent mode requires sending the
                        BREAK signal, or interruption of power to PK232.

       CMSG (ON/OFF)   DEFAULT: OFF
               Enables or disables automatic transmission of the CTEXT
               message when your PK232 accepts a connect request from
               another station.
               ON = CTEXT message is sent as the first packet after a
                    connection is established, by a connect request from
                    a distant station.
               OFF = The CTEXT message is not sent at all.

       CONMODE (CONVERS/TRANS)   DEFAULT: CONVERS
               Selects the mode that the PK232 uses after entering the
               connected state.
               "CONVERS" = PK232 automatically enters CONVERSE mode after
                           a connection is established.
               "TRANS" = PK232 automatically enters TRANSPARENT mode
                         when a connection is established.


       CONNECT call1 [VIA call2 [,call3, ....call9]]
               Sends a connect request to station at call1, directly, or
               via one or more digipeaters.
               Each call can include an optional SSID 'n' immediately
               after the callsign.

       CONOK (ON/OFF)  DEFAULT: ON
               An old command related to the TAPR tnc's.
               Use CFROM instead of CONOK.
               ON - Connect requests from other stations will be accepted
                   if CFROM is set to all.
               OFF - Connect requests from other stations will NOT be
                     accepted if CFROM is set to ALL or NONE.

       CONPERM (ON/OFF)        DEFAULT: OFF
               Connect permanantly.
               ON - The current connection on the current channel is not
                    allowed to enter the disconnected state.
               OFF - The current channel can be connected to and
                     disconnected from other stations.

       CONSTAMP (ON/OFF)       DEFAULT: OFF
               Activates time stamping of ****CONNECTED status messages.
               ON - Connect status messages are time stamped.
               OFF - Connect status messages are NOT time stamped.

       CPACTIME (ON/OFF)       DEFAULT: OFF
               Activates automatic, periodic transmission of packets while
               in converse mode.
               ON - Packet transmit timer is used in converse mode.
               OFF - Packet timer is NOT used in converse mode.
               When set to on, characters are transmitted periodically,
               as they are in transparent mode.
               Set ACRPACK OFF for this mode.
               CPACTIME ON is a mode similar to full break in CW.
               CPATIME ON transmits text soon after it's typed, in short
               bursts of a few characters. The other station may break in
               at will.


       CSTATUS
               Displays the following information:
                      The number of each logical channel
                      The link state of all 10 logical channels
                      The current input/output channel
                      Whether or not each connection is permanent.
       CSTATUS S      CSTATUS short. Displays only those channels
                      which are connected or which are the current
                      input/output channels.


       CTEXT "text"
               The text message that is sent to another station, as soon
               as he connect to you.
               To type a multiple line CTEXT message, and include a <CR>
               in the text, use the PASS character <CTRL-V> immediately
               before the <CR>.
               The CTEXT message can be up to 120 characters in length.

       CUSTOM 'nnnn'
               Specifies a 4 digit hex number, where each bit controlls
               a different function.
               'n' = $00 to $40  (0 to 64).
               ---------------- Bit Descriptions ------------------------
               Bit 0 ($0001)  1 = PK232 discards a received packet if
                                  signal is too weak to cause DCD LED to
                                  light. (DEFAULT)
                              0 =  Packets will be received regardless of
                                   the setting of the threshold control.

               Bit 1 ($0002)  0 = (DEFAULT) Setting MONITOR command to
                                  a value of "YES" or "ON" results in a
                                  MONITOR value of 4.
                              1 = MONITOR value of "ON" or "YES" forces
                                  MONITOR value to 6.

               BIT 2 ($0004)  1 = (DEFAULT) A BREAK on the rs232 line puts
                                  PK232 into COMMAND Mode.
                              0 = BREAK on rs232 line does not affect PK232.

               BIT 3 ($0008)  0 = (DEFAULT) Packet channel numbers are
                                  numbered 0-9.
                              1 = Packet channel numbers are labeled A-J
                                  (lowercase a-j also accepted).

               BIT 4 ($0010)  1 = (DEFAULT) PK232 inserts figures shift
                                  character after a space prior to sending
                                  any figures. <space><FIGS><number>.
                              0 = PK232 will not insert FIGS character after
                                  each space. (Recommended for MARS).

               BIT 5 ($0020)  1 = When powered on, PK232 stays in last mode
                                  it was in (converse, command or transparent)
                              0 = (DEFAULT) PK232 always powers up in
                                  COMMAND mode.

               BIT 6 ($0040)  1 = Monitoring is active in the transparent
                                  mode.
                              0 = (DEFAULT) Monitoring is disabled in the
                                  transparent mode.

               BITS 7-15      Unused at present time.

               CUSTOM "Y" or CUSTOM "ON" returns CUSTOM command to
                               default settings.


       DFROM (all, none,yes/no, call1, call1...)   DEFAULT: ALL
               Determines how the PK232 will be used as a digipeter.
               It determines which stations will be repeated and which
               will not be repeated.
               NONE - No stations are digipeated
               YES (call list) - Packets are digipeated only for those
                                 stations whose calls are listed.
               NO (call list) - Packets are not digipeated only for those
                                stations whose calls are listed.
               %, & or OFF  - Clears DFROM.



       DIGIPEAT (ON/OFF)       DEFAULT: ON
               Included for compatibality with TAPR TNC's.
               ON - PK232 digipeats packets from all other stations
                    if DFROM is set to ALL.
               OFF - PK232 will not digipeat packets if DFROM is set to
                     ALL or NONE.


       DISCONNE
               Initiates a disconnect command to the distant station to
               which you are connected. If successfull, the following
               message appears:  **** DISCONNECTED (callsign)

       DWAIT 'n'       DEFAULT: 16 (160 ms)
               Helps to avoid collisions with digipeated packets.
               'n' = 0 to 250  ten millisecond intervals.
               PK232 pauses after last hearing data on the channel for
               the duration of the DWAIT time, before it begins it's
               transmitter key-up sequence.
               Recommended Values:
                                  Digipeaters: 0
                                  Local Stations : 160 (default)
                                  PBBS's and HOSTS: 320
                                  File Transfers: 480

       FRACK 'n'       DEFAULT: 3 (3 seconds)
               Frame ACKnowledgement time in seconds, that the PK232 will
               wait for acknowledgement of the last sent protocol frame
               before resending or retrying that frame again.
               'n' = 1 to 15 (seconds)


       HBAUD 'n'       DEFAULT: 1200 Bauds
               Sets the PK232 to radio baud rate.
               'n' can be:  45, 50, 75, 100, 110, 150, 200, 300, 400,
               600, 1200, 2400, 4800, 9600.
               HBAUD sets the "on the air" baud rate ONLY in the packet mode.


       HEADERLN (ON/OFF)       DEFAULT: ON
               ON - The header for a monitored packet is printed on a
                    separate line from the packet text.
               OFF - The header and packet text of monitored packets are
                     printed on the same line.
               Only affects the DISPLAY of monitored packets.


       HID  (ON/OFF)           DEFAULT: OFF
               Activates or disables the automatic periodic transmission
               of identification packets when operating as a digipeater.
               ON - PK232 sends HDLC identification as a digipeater.
               OFF - PK232 does not send HDLC identification.
               The timing for the identification is every 9.5 minutes, and
               cannot be changed.


       ID
               Sends a special identification packet. (HID must be set ON).
               Sends a final identification packet when you're taking
               your station off the air. The identification consists of
               an un-numbered I frame with it's data field containing
               your MYALIAS and your MYCALL and the word "digipeater".

       ILFPACK (ON/OFF)                DEFAULT: ON
               Permits you to control the way the PK232 handles line
               feed characters received from your computer.
               ON - PK232 ignores all line-feed characters received from
                    the computer terminal.
               OFF - PK232 transmits all line-feed characters received from
                     the computer or terminal.
----------------------------------------------------------------------------
PK232CMD.LST  (PART 3)
----------------------------------------------------------------------------


       KISS (ON/OFF)   DEFAULT: OFF
               KISS protocol eliminates most of the PK232 software, and
               sends raw HDLC frames up to the host computer.
               The bulk of AX.25 (or other protocol) must be done on the
               host computer.
               ON - PK232 operates as a KISS TNC.
                    Forces HPOLL OFF (temporarily), PPERSIST ON, RAWHDLC ON,
                    and HOST ON. RAWHDLC ON temporarily forces CONMODE TRANS,
                    TRACE OFF, HID OFF, and NO Beacon. HOST ON temporarily
                    forces 8BITCONV ON, AWLEN 8, PARITY 0, and no software
                    flow control.
                    To exit KISS mode, type (3) <CTRL-C> all within 1 second.
                    HOST OFF (3 Ctrl-C's) forces KISS OFF.
                    PK232 CMD and PKT LED's will be lit confirming exit
                    from KISS mode.
                    "Temporarily" means that PK232 will behave as if the
                    function is set that way, even though the function
                    setting does not change.


               OFF - PK232 operates as a normal AX.25 level 2 TNC.
               In KISS and Raw HDLC modes, communication activity on the
               RS-232 link is shown by the illumination of the STA and
               CON led's as follows:
                           STA led lit:  Host to TNC communication.
                           CON led lit:  TNC to host communication.
               KISS mode is used to run TCP/IP.
               To run TCP/IP, the following parameters must be set:
                       AWLEN 8
                       PARITY 0    Enter if terminal word length and parity
                       RESTART     is something other than 8 bits
                       --------------------------------------------------
                       TRACE OFF         Enter if commands have been
                       HID OFF           changed from default settings.
                       BEACON EVERY 0
                       PACKET
                       ---------------------------------------------------
                       CONMODE TRANS     Enter these commands with HOST ON
                       PPERSIST ON       command entered last.
                       RAW ON
                       HPOLL OFF
                       KISS ON
                       HOST ON   (must be entered last)


       MAILDROP  ON/OFF     DEFAULT: OFF
               ON - PK232 operates as a personal packet BBS.
               OFF - PK232 operates as normal AX.25 Level 2 TNC.
               8000 bytes of ram are available for the mailbox. The ram
               can be used for a single message or up to 15 messages.
               Power on/off, RESTART or RESET clears all messages in ram.
               Mailbox commands:
                               B  -  BYE Log off the Mailbox
                               K  -  Kill or delete messages.
                               L  -  List the message directory
                               R  -  Read a specific message
                               S  -  Send a message




       MAXFRAME 'n'    DEFAULT: 4
               'n' = 1 to 7
               Sets the upper limit on unacknowledged packets the PK232
               permits on the radio link at any one time. Also sets the
               maximum number of packets the PK232 will send during any
               given transmission.

       MBELL (ON/OFF)          DEFAULT: OFF
               ON - Will send 3 bell characters to the terminal when the
                    call signs of the station monitored match the MFROM and
                    MTO lists.
               OFF - PK232 will NOT send any bell characters to the terminal
                     as a result of monitored packets.

       MBX call1 [,call2] [ -'n']       DEFAULT: empty
               MBX overrides normal monitor functions so that you can
               monitor one or both sides of a conversation.
               MBX filters the received packet stream so that only packets
               from the selected stations are shown, without headers, codes,
               or repeated frames. Permits you to read and record data
               without having to log on or connect to the source station.
               Use this command if someone is dumping a file on a PBBS,
               any you would like a clean copy of it.
               The resulting information is free of all headers, frame
               identifier codes, repeats and improperly sequenced lines.
               "ALL" permitts MBX to monitor packets from any station.
               MBX is cleared with %, &, N, or NO.


       MCON 'n'        DEFAULT: 0 (zero)
               Allows selective monitoring of a other traffic while
               connected to a distant station. Affects the display only
               in the connected state.
               'n' = 0 to 6 signifying various levels of monitoring
               0 = Disable monitoring while connected.
               1 = Show only unnumbered (UI) frames resulting from an
                   unconnected transmission. Also displays beacons.
               2 = Numbered (I) frames are also displayed. These result
                   from a connected transmission. Monitors connected
                   conversations in progress.
               3 = Connect requests (SABM or 'C') frames and (DISC or 'D')
                   frames are also displayed with headers.
               4 = Unnumbered acknowledgment frames (UA) of connect and
                   disconnect state frames are also displayed with either
                   the character (UA) or (DM) and a header.
               5 = Receive Ready (RR), Receive Not Ready (RNR), Reject (RJ)
                   Frame Reject (FRMR) and (I)- frames are also displayed.
               6 - Poll/Final bit and sequence numbers are also displayed.


       MDCHECK
               Logs you on to your own mailbox to check for messages.
               While you are logged onto the mailbox, any connect
               request from a distant station will be answered with a "BUSY"
               (DM) frame to the distant station.
               If MAILDROP is OFF, you cannot issue mailbox commands.
               You must use the MDCHECK command .
               A blinking STA LED indicates that a message has been left
               for the mailbox owner.  MDCHECK turns off the STA LED.
               You cannot log onto your mailbox while a connect with
               another station is in progress.



       MDIGI (ON/OFF)          DEFAULT: OFF
               Permits you to display packet frames that your monitor would
               normally not show when another station uses your station
               as a digipeater.
               ON - I and UI frames having your call sign (MYCALL or MYALIAS)
                    as the next digipeater in the digipeater field are
                    displayed.
               OFF - Normal monitoring as determined by the monitoring mode
                     commands.



       MDMON ON/OFF     DEFAULT: ON
               ON - Monitors a calling station's activity on your mailbox.
               OFF - Normal monitoring as determined by the monitoring
                     mode commands.

       MDPROMPT  text
               text = any combination of characters and spaces up to a
                      maximum of 80 bytes.
               MDPROMPT is the command line sent to a calling station by
               your mailbox in response to a send command issued by the
               user.
               DEFAULT: "Enter message, ^Z (CTRL-Z) to end".



       MFILTER n1 ['n2 [,n3 [,n4 ]]]           DEFAULT: $80
               Selects characters fo be filtered or excluded from the
               monitored packets.
               'n' = $00 to $80 (0 to 128 decimal) specifies an ASCII
                     character code. Up to 4 characters can be specified.

       MFROM ALL/NONE or YES/NO call1 [,call2..]       DEFAULT: ALL
               Determines how the PK232 monitors the packet channels,
               and displays the information. Determines which station's
               packets will be displayed, and which station's packets will
               be hidden.
               MFROM NONE Stops any packets from being displayed.
               MFROM YES [call list] displays packets only from stations
                                     whose call is in list.
               MFOM NO [call list] Hides or masks packets from one or more
                                   specific stations.
               Clear MFROM with %, & or OFF.


       MHEARD
               Displays a list of stations heard since the last time the
               MHEARD buffer was cleared.
               To clear MHEARD buffer use MHEARD &, N, NO, NONE, or OFF.
               The maximum number of stations that can be logged is 18.
               As more stations are heard, earlier entrys are discarded.


       MID 'n'
               n = 0 to 250   Specifies the Morse ID timing in 10 second
                              intervals. PK232 issues a 20 WPM Morse ID.
               n = 0          Disables Morse ID (DEFAULT)
               If HID is ON, ID will cause HDLC ID to be transmitted
               immediately (same as before).
               If MID is set to a value other than 0, ID will force a MORSE
               ID immediately. If both HID and MID are active, the MORSE
               ID will be sent first.



       MONITOR 'n'     DEFAULT: 4
               'n' = 0 to 6 determines various levels on monitor indications.
               0 = Disable monitoring while connected.
               1 = Show only unnumbered (UI) frames resulting from an
                   unconnected transmission. Also displays beacons.
               2 = Numbered (I) frames are also displayed. These result
                   from a connected transmission. Monitors connected
                   conversations in progress.
               3 = Connect requests (SABM or 'C') frames and (DISC or 'D')
                   frames are also displayed with headers.
               4 = Unnumbered acknowledgment frames (UA) of connect and
                   disconnect state frames are also displayed with either
                   the character (UA) or (DM) and a header.
               5 = Receive Ready (RR), Receive Not Ready (RNR), Reject (RJ)
                   Frame Reject (FRMR) and (I)- frames are also displayed.
               6 - Poll/Final bit and sequence numbers are also displayed.

       MPROTO (ON/OFF)         DEFAULT: OFF
               ON - Monitors all I and UI frames as before.
               OFF - Monitors only those I and UI frames with PID byte of $F0.
               Used with NET/ROM that sends frames that have a PID of $CF.
               Allows monitoring of frames used by NET/ROM.

       MRPT (ON/OFF)   DEFAULT: ON
               Affects the way monitored packets are displayed.
               ON - Show digipeaters in the header. Stations heard directly
                    are marked with an "*" asterisk.
               OFF - Show packets only from originating and destination
                     stations.


       MSTAMP (ON/OFF)         DEFAULT: OFF
               Activates or disables time stamping of monitored packets.
               ON - Monitored frames are time stamped.
               OFF - Monitored frames are not time stamped.


       MTO ALL/NONE or YES/NO call1 [,call2...]        DEFAULT:none
               MTO determines how the PK232 monitors the packet channel.
               It determines which station's packets will be displayed,
               and which station's packets will be masked off or hidden.
               MTO ALL  Stops all packets to all stations from being displayed
               MTO YES <call list> will display packets to the stations,
                                   whose calls are included in list.
               MTO NO <call list> Packets to stations whose calls are included
                                  in list, will not be displayed.
               Clear MTO with %, &, or OFF


       MYALIAS call [-n]       DEFAULT: Empty
               Specifies an alternate callsign or alias for use as a
               digipeater only.
               n = 0 to 15 optional substation ID.

       MYCALL call [-n]        DEFAULT: PK232
               Loads your call sign into PK232 memory.
               n indicates an optional substation id (SSID).
               If MYCALL has not been changed from the default value of
               "PK232", PK232 will not transmit or acknowledge any
               packets. This prevents "PK232" from being transmitted.


       PACKET
               Causes the PK232 to enter the packet radio mode.


       PACLEN  'n'        DEFAULT: 128
               Sets the maximum number of user data bytes to be carried in
               each packet's information field.
               'n' = 0 to 255 data bytes or characters.
               0 = is equivalent to 256
               NOTE: it is not necessary that two TNC's be set to the
                     same packet length to exchange data. Some TNC's may
                     not be compatible with frames containing more than
                     128 data bytes.


       PACTIME  EVERY|AFTER  'n'       DEFAULT: After 10 (1000 ms)
               A PACTIME parameter is ALWAYS used in TRANSPARENT mode.
               PACTIME is also used in converse mode if CPACTIME is ON.
               'n' = 0 to 250 specifies number of 100 millisecond intervals.
               EVERY - packet timeout occurs every 'n' * milliseconds.
               AFTER - packet timeout occurs when 'n' * 100 milliseconds
                       elapse without input from the computer or terminal.
               A zero length packet will never be produced. The timer
               is not started until the first character or byte is entered.
               A value of 0 for 'n' is not allowed. Zero means packets are
               sent with no wait time.


       PASS  'n'       DEFAULT: $16 <CTRL-V>
               Selects the ASCII character code to be used for the pass
               input editing command.
               'n' = $00 to $7F  (0 to 127 decimal) ASCII code.
               'n' is the numeric ASCII code for the character you'll use
                   to signal that the character immediately following it
                   is to be included in the packet or text string.

               Use the PASS character (DEFAULT: <CTRL-V)) to send
               characters that usually have special functions.


       PASSALL (ON/OFF)        DEFAULT: OFF
               ON - PK232 will accept packets with invalid CRC's.
               OFF - PK232 will accept packets with valid CRC's ONLY.
               PASSALL shuts off the error detecting mechanism in packet
               mode.
               When PASSALL is ON, MHEARD logging is disabled since the
               call signs detected may be incorrect.



       PERSIST 'n'     DEFAULT: 127 (middle between 0 and 255)
               'n' = 0 to 255 specifies the threshold value for a random
                     number attempt to transmit.
               'n' = 0 Signifies a 1/256th chance of transmitting erery
                       SLOTTIME.
               'n' = 255 Signifies 'transmit right away without delay'
                     When PK232 has data ready for transmission, the PK232
                     watches the DCD signal from it's internal modem.
                     The PK232 waits forever for the DCD signal to go
                     to the inactive state. When DCD goes inactive, meaning
                     that the channel is clear, the PK232 generates a random
                     number between 0 and 255. If the random number is equal
                     to or less than PERSIST, PK232 keys the PTT line,
                     waits .01 * TXDELAY seconds, and then transmits all
                     frames in it's queue.
                     If the random number generated is greater than PERSIST,
                     the PK232 waits .01 * SLOTTIME seconds and repeats the
                     procedure. If DCD has gone active in the meantime, the
                     PK232 again waits for DCD to go inactive before it
                     continues.


       PPERSIST (ON/OFF)       DEFAULT: OFF
               ON - PK232 uses the PERSIST and SLOTTIME parameters in
                    executing p-persistent CSMA (Carrier Sense Multiple
                    Access).
               OFF - PK232 uses DWAIT for TAPR-type 1-persistent CSMA.



       RELINK (ON/OFF)         DEFAULT: OFF
               ON - PK232 will automatically try to reconnect the distant
                    station after the link has timed out on retries.
               OFF - PK232 will not attempt to re-establish the failed link.
               Set RELINK to OFF when using the PK232 with host computer
               applications.


       RESPTIME 'n'            DEFAULT: 10 (1000 ms)
               'n' = 0 to 250 100 ms intervals.
               Adds a minimum delay before the PK232 sends acknowledgement
               packets.


       RETRY 'n'       DEFAULT: 10
               'n' = 0 to 15 specifies the maximum number of packet retrys.
               'n' = 0  specifies an infinite number of retrys.
               FRACK specifies the time between retrys.



       SENDPAC 'n'     DEFAULT: $0D <CTRL-M>
               'n' = $00 to $7F ( 0 to 127 decimal) ASCII character code.
               Selects the character used to force a packet to be sent
               in converse mode.
               Use SENDPAC $0D with CR ON to send packets with <CR> included
               in the packet.
               If CAPTIME ON, set SENDPAC to a value not ordinarily used,
               (for example <CTRL-A> with CR OFF). This setting forces
               packets to be sent without extra <CR> characters in the text.


       SLOTTIME 'n'            DEFAULT: 10 (100 seconds)
               'n' = 0 to 250   specifies the time interval during which
                                the PK232 waits between generating random
                                numbers, to see if it can transmit.


       SQUELCH (ON/OFF)                DEFAULT: OFF
               ON - PK232 responds to positive going squelch voltage.
               OFF - PK232 responds to negative going squelch voltage.
               PK232 normally senses audio mark and space tones from
               the receiver as an indication that the channel is busy.
               If there are voice signals on the channel, the PK232 may
               not accept them as an indication that the channel is
               busy, and double with them. In this case, the squelch
               voltage from the radio can be fed into the PK232 to provide
               a positive means of determining if the channel is busy or
               not. SQUELCH permits either polarity of radio squelch
               voltage to be used.



       TRANS
               Switches PK232 from command mode to TRANSPARENT mode.
               The current state of the radio link is not affected.
               TRANSPARENT mode is used to transfer binary or other
               non-text files.


       TRIES 'n'       DEFAULT: 0
               'n' = 0 to 15  specifies the current RETRY level on the
                     selected input channel.
               TRIES retrieves (or forces) the count of tries on the data
               channel presently selected.
               TRIES <with no argument>  returns the current number of tries
                                         if an outstanding unacknowledged
                                         frame exists. If no outstanding
                                         unacknowledged frame exists, PK232
                                         returns the number of tries required
                                         to get an ACK for the previous frame.
               TRIES is used to gather statistics on a given path or
               channel.
               TRIES 'n' forces the tries counter to the entered value.
                         (This method is not recommended to force a new
                         count into the TRIES counter).


       TXDELAY 'n'             DEFAULT: 30  (300 ms)
               'n' = 0 to 120  ten millisecond intervals.
               Tells PK232 how long to wait before sending packet frame data
               after keying your transmitter's PTT line.


       TXFLOW (ON/OFF)         DEFAULT: OFF
               ON - Software flow control for Pk232 can be activated in the
                    Transparent mode.
               OFF - Software flow control for PK232 is disabled in
                     Transparent mode.
               If TXFLOW is ON, the settings of XFLOW determine the type
               of flow control used in Transparent mode.
               If TXFLOW is OFF, PK232 uses only hardware flow control; all
               data sent to the terminal remains fully transparent.
               If TXFLOW and XFLOW are ON, PK232 uses the START and STOP
               characters (set by XON and XOFF) to control the input from
               the terminal.
               Unless TRFLOW is also on, only hardware flow control is
               available to the computer or terminal to control output
               from the PK232.
               If START and STOP characters are set to $00, hardware
               flow control is always selected, regardless of the setting
               of TXFLOW.


       UNPROTO call1 [via call2 [,call3....,call9]]            DEFAULT:CQ
               Sets the digipeat and destination address fields of packets
               sent in the unconnected (unprotocol) mode.
               call1 - call sign to be placed in the TO address field.
               call2-9 - Optional digipeater call list ( up to 8 calls).
               Unconnected packets are sent as unsequenced I frames with
               the destination and digipeat fields taken from call1 through
               call9 options.


       USERS 'n'       DEFAULT: 1
               'n' = 0 to 10  specifies the number of active simultaneous
                              connections that can be established with
                              your pk232.
               USERS only affects the way INCOMING connect requests are
               handled. It does not affect the number of connections
               that you initiate.


       VHF (ON/OFF)            DEFAULT: ON
               ON - Packet modem tones are shifted 1000 Hz.
               OFF - Packet tones are shifted 200 Hz.
               ON is for VHF Packet operation.
               OFF is for HF Packet operation.

       WHYNOT  ON/OFF      (DEFAULT OFF)
               ON - PK232 will generate a reason why a received packet
                    was not displayed on the screen.
               OFF - This function is disabled.
                     ----------- Reasons for Bad Packets ----------------
                     Bit Residue - Frame ended in the middle of a byte.
                     Passall -     Received packet frame had errors and
                                   PASSALL was set to off preventing the
                                   packet from being displayed.
                     DCD Threshold - The Threshold control was set to
                                     far CCW. The DCD LED was off when the
                                     packet was received.
                     MONITOR -      The MONITOR value was set too low to
                                    receive this type of frame.
                     MCON -         MCON was set too low to receive this
                                    type of frame.
                     MPROTO -       MPROTO was set to OFF and the received
                                    packet was probably a NET/ROM or TCP/IP
                                    frame.
                     MFROM/MTO -    The frame was blocked by the setting
                                    of either MFROM or MTO commands.
                     MBX -          The call sign of the sending station
                                    does not match the callsign setting
                                    in the MBX command.
                     MBX SEQUENCE - The packet frame has been received out
                                    of sequence indicating that it is
                                    probably a "retry".
                     FRAME TOO LONG - Incoming packet frame is longer than
                                      330 bytes. Probably a non-AX.25
                                      frame.
                     FRAME TOO SHORT - Incoming packet frame is shorter
                                       than 15 bytes. Only seen if PASSALL
                                       is set to ON. Probably a non-AX.25
                                       frame.
                     RX OVERRUN -      Another HDLC byte was received before
                                       the previous one could be read from
                                       the HDLC chip (8530).



       XMITOK (ON/OFF)         DEFAULT: ON
               ON - Transmit functions (PTT Line) are active.
               OFF - Transmit functions (PTT Line) are disabled.
               If XMITOK is OFF, the PTT line to the transmitter is disabled.
               All other pk232 functions remain the same.
               XMITOK is set to OFF when you want to monitor channel
               activity without ever transmitting.
----------------------------------------------------------------------------
PK232CMD.LST  (PART 4 OF 4)
----------------------------------------------------------------------------


       ========================= MORSE COMMANDS ==============================
       MORSE
               PK232 is switched into Morse code mode.


       MSPEED 'n'      DEFAULT: 20 WPM
               Sets the MORSE code keying speed for the PK232.
               'n' = 5 to 99 WPM
               For speeds between 5 and 14 WPM, code is sent with Farnsworth
               spacing - the characters are actually sent at 15 WPM.



       ========================= BAUDOT COMMANDS =============================

       BAUDOT
                Switches PK232 into Baudot Rtty mode.



       BITINV n        DEFAULT: $00
               MODE: Baudot RTTY
               n = $00 to $1F (0 to 31 decimal)  specifies a number to be
                              exclusive ORed with every received Baudot
                              character.
               $00 = no bit imversion, print plain text.



       CCITT (ON/OFF)          DEFAULT: ON
               MODE: Baudot RTTY
               ON - If code is 0, PK232 uses the CCITT ITA #2 code in Baudot.
               OFF - If code is 0, PK232 uses the U.S. Teleprinter code
                     in Baudot.
               CCITT has been replaced with the CODE command, but is
               retained for compatibility reasons.



       RBAUD 'n'       DEFAULT: 45 bauds (60 WPM)
               'n' specifies the RADIO baud rate for Baudot RTTY.
               'n' can be 45, 50, 57, 75, 100, 110, 150, 200, 300 bauds.


       USOS (ON/OFF)           DEFAULT: OFF
               ON - Letters (LTRS) case is forced after a space character.
               OFF - Letters (LTRS) case is NOT forced after a space.


       ========================= AMTOR/FEC COMMANDS ==========================

       ACHG
               Forces a changeover from receive to transmit in the AMTOR
               link.

       ADELAY  'n'     DEFAULT: 4
               'n' = 1 to 9
               'n' specifies transmitter key up delay in ten millisecond
                   intervals.
               ADELAY is the time between the instant the PTT line is
               activated for xmit, and the instant when ARQ data actually
               begins to flow to the transmitter.

       ALIST
               Switches PK232 into ARQ listen mode. (Mode L).

       AMTOR
               Switches PK232 into ARQ standby/receive mode.
               Any FEC (Mode B) transmissions will be displayed.

       ARQ aaaa
               Starts a Mode A SELCAL to a distant station.
               aaaa = the distant station's selective calling code.

       ARQTMO 'n'      DEFAULT: 60
               'n' = 0 to 250
               'n' = number of seconds to send an ARQ selcal before
                     automatic transmitter shutdown.

       FEC     Puts PK232 in AMTOR Mode B.
               Use this mode to send an AMTOR CQ.
               Include your SELCAL in your transmitted FEC message so that
               other stations can call you in Mode A (ARQ).


       MYALTCAL aaaa           DEFAULT: Empty
               aaaa specifies an Alternate SELCAL code.
               aaaa can be any 4 alphabetical characters or numeric strings
                    of either 4 or 5 characters.


       MYSELCAL aaaa           DEFAULT: empty
               Specifies your selective calling code (SELCAL)
               SELCAL must be specified before you can use AMTOR mode.
               Rules for determining your SELCAL:
               Group     Call    Selcal
               ---------------------------
               1 by 2    W1XX     WWXX
               1 by 3    W1XXX    WXXX
               2 by 1    AB1X     AABX
               2 by 2    AB1XX    ABXX
               2 by 3    KA1XXX   KXXX



       MYIDENT aaaaaaa     DEFAULT: empty
               aaaaaaa specifies the user's seven character SELCAL as
               described in CCIR Rec. 625.
               The PK232 now supports 7 character selcal's in AMTOR mode.



       RFEC (ON/OFF)           DEFAULT: ON
               Prevents the reception of all FEC signals while in AMTOR
               standby mode.
               ON - Mode B FEC signals are displayed while in AMTOR standby.
               OFF - Mode B FEC signals are not displayed.

       SELFEC aaaa             DEFAULT: empty
               aaaa specifies a distant station's selective calling code
               (SELCAL).
               SELFEC starts a selective FEC (mode Bs) transmission to
               the specified distant station, when you enter that station's
               SELCAL code.


       SRXALL (ON/OFF)         DEFAULT: OFF
               Permits the reception of selectively coded inverse FEC signals
               normally not available for decoding.
               ON - Receive all selective (SELFEC) transmissions.
               OFF - Receive only SELCAL addressed SELFEC transmissions.


       ========================= TDM COMMANDS ================================

       TDBAUD n            DEFAULT: 96
               n specifies the data rate (speed in bauds) of the TDM signal
                 you are receiving.
                 n = 0 to 200 but only some of these are legal values.
                 1-channel: 48, 72, 96  are legal.
                 2-channel: 86, 96, 100 are legal.
                 4-channel: 171, 192, 200 are legal.

       TDCHAN n      DEFAULT: 0
               n specifies the TDM channel number.
               n selects the data channel to seperate out from the multiplexed
               TDM signal. n can be 0-3.
               1-channel: No effect.
               2-channel: 0 and 2 show channel A.
                          1 and 3 show channel B.
               4-channel: 0 shows channel A.
                          1 shows channel B.
                          2 shows channel C.
                          3 shows channel D.


       TDM
               Selects TDM mode (Moore Code).
               Use SIGNAL to check that received signal is really TDM.
               If TDM is detected, type "OK".
               AMTOR STATUS LED's are as follows:
               STBY: Trying to establish bit phasing.
               PHASE: Bit phasing established, trying to synchronize on
                      characters.
               OVER: Character synchronization established.
               TFC: Printable character received.
               IDLE: Idling signals received.
               RQ: Error character of $00 or $7F received.
               ERROR: Other bad character received.

               The PHASE LED stays lit if the signal is too weak to
               achieve synchronization. Use the "R" command to force
               manual sync. Repeated use of the "R" command causes the
               bit synchronization to move along by one bit for each "R"
               command.
               "L" forces letters shift as in Baudot mode..
               "N" forces figsures shift as in baudot mode.
               TRACE ON displays these characters:
                                          | = NULL
                                          * = LTRS
                                          % = FIGS
                                          a = Alpha Idle
                                          b = Beta Idle
                                          r = Signal Repetition

               Some TDM Frequencies: 19,101.9 LSB
                                     18,983.6 USB
                                     14.956.7 USB

               TDM stations idle most of the time. You may have to
               monitor a TDM station for an hour or more before any data
               is received.



       ========================= FAXCIMILE COMMANDS ==========================

       ASPECT n        DEFAULT: 2
               Controls the aspect ratio (length to width) of a FAX image.
               n = 1 to 6  specifies the number of FAX scan lines that the
                           PK232 prints out, for every 6 lines received.
               For most weather charts ASPECT 2 works well.
               To stretch the image down the page, use a higher setting
               for ASPECT such as 4.
               The Index Of Cooperation is an International measure of
               aspec ratio.
               The CCITT IOC is:
               IOC = (Vertical scan line density) * (horizontal width) / pi
               The IEEE ICO is:
               IOC = (Vertical scan line density) * (horizontal width)
               ASPECT   CCITT IOC (Narrow)         CCITT IOC (WIDE)
               ---------------------------------------------------------------
               1        1100                        1788
               2         550 (Weather charts 576)    894
               3         367 (Wirephotos 352)        596 (Weather charts 576)
               4         275 (WEFAX Satellite 288)   447
               5         220                         358 (Wirephotos 352)
               6         183                         298 (WEFAX Satellite)
               In receive, ASPECT 2 causes the PK232 to sample 2 out of
               every 6 lines received. ASPECT 4 causes PK232 to sample 4
               out of every 6 lines received.
               In transmit, ASPECT 2 causes PK232 to send every line 3 times.
               ASPECT 4 causes PK232 to send even lines twice and odd lines
               once. When sending from one PK232 to another, it's best to
               run the same aspect ratio on both pk232's.


       DISPLAY (F)ax    Displays all FAX related parameters.


       FAX
               Switches PK232 into Facsimile mode. PK232 starts in FAX
               standby, waiting to detect sync pulses that start a frame.



       FAXNEG (ON/OFF)         DEFAULT: OFF
               ON - The white and black senses are reversed.
               OFF - The white and black senses are normal.
               FAXNEG is not the same as RXREV. RXREV inverts the entire
               signal, including the sync pulses. FAXNEG keeps the sync
               pulses upright, but inverts the image data only.


       FSPEED 'n'      DEFAULT: 2  (2 lines/second)
               'n' = 0 to 4    selects the FAX horizontal scan rate, in
                               lines per minute.
           FSPEED  (Highest print density Usable) narrow carrage  wide carrage
             1     1 line/sec    60 lines/min        275 dpi        169 dpi
             2     2 lines/sec   120 lines/min       138 dpi         85 dpi
             3     3 lines/sec   180 lines/min       92 dpi          56 dpi
             4     4 lines/sec   240 lines/min       69 dpi          42 dpi
             0     1.5 lines/sec 90 lines/min        183 dpi        113 dpi


       GRAPHICS 'n'            DEFAULT: 1  (960 dots)
               'n' = 0 to 6    selects the FAX horizontal graphics dot
                               density printed on the printer.
               (See dot density Tables on pages M14 and M15 in PK232 manual)


       JUSTIFY 'n'
               Moves FAX image closer to the edge of the paper.
               'n' = 0 to 25   number of 1/2 inches that the FAX image is
                               to be moved closer to the edge of the paper.
               If LEFTRITE is ON, JUSTIFY 1 will move the image 1/2 inch
               to the left.
               If LEFTRITE is OFF, JUSTIFY will move the image 'n' half
               inches to the right.
               If the PK232 is allowed to synchronize by itself, JUSTIFY
               should not be needed.


       LEFTRITE  (ON/OFF)      DEFAULT: ON
               ON - The signal is scanned from left to right.
               OFF - The signal is scanned from right to left.
               LEFTRITE reverses the horizontal scanning direction.
               LEFTRITE is useful for printing wirephotos.


       LOCK
               Tells the PK232 to start printing regardless of whether or
               not the facsimile sync pulses have been detected.
               LOCK is a manual start command for FAX.
               Sync pulses consist of of lines of 5% white and 95% black,
               with the beginning of the white pulse signifying the left
               edge of the following image.
               If you issue a LOCK command to start FAX printing, you will
               probably need to use JUSTIFY to properly allign the image.


       OPMODE FAX STBY RCVE   PK232 is searching for sync pulses to start
                              printing the next image.
       OPMODE FAX SYNC RCVE   PK232 has detected the sync pulses, or
                              synchronization has been forced with the LOCK
                              command, and PK232 should be starting to
                              print the next image.
       OPMODE FAX STBY SEND   PK232 is idling or sending the 300 Hz motor
                              start tone, before it sends the sync pulses,
                              or that it is sending the 450 Hz stop tone.
       OPMODE FAX SYNC SEND   PK232 is sending either sync pulses or image
                              dots. If the computer has not yet sent the
                              image data to the PK232, PK232 will transmit
                              a white tone continuously.


       PRCON (ON/OFF)          DEFAULT: OFF
               Tells the PK232 whether or not a parallel printer is
               connected via the special "Y" facsimile cable.
               ON - A paralle printer is connected to the PK232 via the
                    special FAX "Y" cable. The mode led's are disabled,
                    and may stay lit or flash randomly.
               OFF - There is no paralle printer connected, or it is not
                     currently in use. The mode led's are enabled, and
                     correctly show operating mode and status.


       PRFAX (ON/OFF)          DEFAULT: ON
               ON - FAX bit graphics are sent to the parallel printer for
                    immediate printing if PRCON is also ON.
               OFF - FAX bit graphics are sent to the terminal via the serial
                     port, using the printer escape codes, as set by PRTYPE
                     and GRAPHICS.
               PRFAX should be sent to on if a parallel printer is connected
               and in use for printing FAX pictures.
               If you wish to save the FAX graphics data to disk, set PRFAX
               OFF and make sure AWLEN is set to 8 to allow 8-bit data
               to be sent to the serial port.



       PRTYPE 'n'      DEFAULT: 2 (Epson)
               'n' = 0 to 255 specifies a code for the type of dot
                              graphics sequences used by your printer.
               (See pg M-19 of PK232 manual for list of PRTYPE codes.)



       XMIT    TRANSMITS FAX DATA
               Keys the radio PTT line and prepares the radio to receive
               outbound FAX data. PRFAX must be OFF, AWLEN must be 8, and
               PARITY must be 0.
       ========================= ASCII COMMANDS ==============================

       ABAUD 'n'     DEFAULT: 110 Baud
               Specifies data rate from PK232 to radio.
               'n' = Baud Rate (45, 50, 57, 100,110, 150, 200, 300, 400,
                     600, 1200, 2400, 4800, 9600)

       ASCII   Switches PK232 into Ascii Rtty Mode.

       ======================= SIGNAL (SIAM) COMMANDS =======================

       BITINV n        DEFAULT: $00
               MODE: Baudot RTTY
               n = $00 to $1F (0 to 31 decimal)  specifies a number to be
                              exclusive ORed with every received Baudot
                              character.
               $00 = no bit imversion, print plain text.


       CCITT (ON/OFF)          DEFAULT: ON
               MODE: Baudot RTTY
               ON - If code is 0, PK232 uses the CCITT ITA #2 code in Baudot.
               OFF - If code is 0, PK232 uses the U.S. Teleprinter code
                     in Baudot.
               CCITT has been replaced with the CODE command, but is
               retained for compatibility reasons.


       OK
               Accepts a set of parameters found using the SIGNAL command.
               Changes (or can change) RXREV, RBAUD, ABAUD, and OPMODE
               to the values found in using the SIGNAL command.

       ======================= NAVTEX MODE =================================

       NAVMSG all, none, Yes/No (letters)      DEFAULT: All
               Determines which type of NAVTEX messages your PK232 will
               print.
               all - print all types of NAVTEX messages.
               none - PK232 prints no NAVTEX messages.
               Yes (list) - PK232 prints only those types of NAVTEX
                            messages specified by "list".
               NO (list) - PK232 prints all NAVTEX messages EXCEPT those
                           specified by "list".
               A. Navigational Warnings
               B. Meteorological Warnings (Storm Warnings).
               C. Ice Reports.
               D. Search and Rescue Information.
               E. Weather Forecasts.
               F. Pilot Service Messages.
               G. DECCA System Information.
               H. Loran-C System Information.
               I. OMEGA Systems Messages.
               J. SATNAV System Messages.
               K-Z Reserved for future use.
               (up to 13 letter types can be monitored or rejected, and
               letters can be seperated by spaces commas or TABS)
               Types A,B and D cannot be excluded, and will always be
               monitored.
               NAVMSG is cleared by %, & or OFF



       NAVSTN  all, none, Yes/No (letters)     DEFAULT: All
               NAVTEX stations are identified by the first letter in the
               preamble. NAVSTN allows ALL, NONE, or up to 13 letters
               representing NAVTEX transmitting stations to be monitored
               or rejected.
               Letters in the list can be seperated by spaces, commas or
               TABS.
               NAVSTN is cleared by %, &, or OFF as arguments.


       NAVTEX
               Switches PK232 into NAVTEX receive mode.
               NAVTEX stations are found on 518 Khz.
               NAVTEX is a special for of mode B FEC, that does not
               output data to the computer or printer until "ZCZC" and
               a preamble are received intact. The preamble consists of 2
               letters and 2 numerals. The PK232 will print until the
               end-of-message indicator "NNNN" is received.
               The first 2 letters define the transmitting station and the
               message class respectively.
               The following 2 numerals form a serial number that is
               remembered by the PK232, when a message is copied intact.
               The PK232 remembers the preambles of the last 200 printed
               messages, and will not re-print a message with the same
               preamble with the following exceptions:
                     Any message with the preamble 00 is considered an
                     emergency message, and will always be printed.
                     Any message with more than 1/8 of it's characters
                     received in error will not be saved, so that it
                     may be re-printed.
                     To clear preamble memory, exit, then re-enter NAVTEX
                     mode.
                     NAVTEX mode uses the setting of DAYTIME to print the
                     date/time in front of the preamble, if MSTAMP and or
                     DAYSTAMP are ON.

               NAVTEX NOTES: Navtex is broadcast in Mode-B AMTOR (SITOR)
                             on 518 khz.

       ======================== ASYNC PORT PARAMETERS ========================
       SYNCING PC to PK232

       If PK232 has batteries installed, and a TBAUD baud rate has already
       been set, the AUTObaud routine will never come up.
       You must match the TBAUD baud rate with the COM port UART baud rate
       to communicate with the PK232.

       If PK232 does NOT have batteries installed, upon power up, it will
       transmit "Please Type * For Autobaud Routine"  (at 1200 baud- default).
       At this point, you must send ONLY a "*", with no <CR> to sync the
       Pk232 with your baud rate. (several *'s may be required).

       The PK232 defaults to 1200 baud when TBAUD has never been set, or
       at power on, with no batteries installed.


       ---------------------------------------------------------------------
       Connection for IBM PC Serial COM Port to PK232

              PK232               IBM PC
                2 <---------------- 2     PC Transmit Data
                3 ----------------> 3     PK232 Transmit Data
                4 <---------------- 4     RTS
                5 ----------------> 5     CTS
                20 <--------------  20    DTR
                8 ----------------> 8     DCD
              - 6 ----------------> 6     DSR
              |
              |
              \   Pull-Up Resistor
              /
              \
              /
              |
              |
              |
              + 10 Volts


       ======================== SPECIAL CHARACTERS ===========================

       Hardware Handshake is enabled if XFLOW = OFF.
                Other parameters that should be set are:
                    START = $00
                    STOP = $00
                    XON = $00
                    XOFF = $00


       SIGNALS FOR HARDWARE HANDSHAKE
       pin   SIGNAL   DIRECTION       SPACE                  MARK
                                   ("0" level/+12V)       ("1" level/-12V)
     -------------------------------------------------------------------------
        4     RTS     to PK232     PK232 XMITS DATA       NO DATA TRANSMITTED
        20    DTR     to PK232     PK232 XMITS DATA       NO DATA TRANSMITTED
        5     CTS     to PC        PC XMITS DATA          NO DATA TRANSMITTED
        8     DCD     to PC        ALWAYS +12 VOLTS
        6     DSR     to PC        ALWAYS +12 VOLTS

       NOTE: If DCDCONN is ON, then pin 8 of the RS-232 port "follows"
             the PK232 CONNECT led.