EXTENDED FREQUENCY RX AND TX OF THE ALR22T & ALR22HT
         ALINCO 2 METER RADIOS.

     BEWARE OF ANY STATIC WHEN WORKING WITH THIS RADIO !!!

 1 Remove the top and bottom covers of the radio.

 2 Remove the 4 screws that hold the front panel assembly to the main
   chassis.

 3 Pull front panel away from the main chassis very gently.

 4 Locate the Volume\Squelch pot on the left side of the radio.

 5 Locate the VFO control on the left side of the radio.

 6 Between the two above units is an IC that runs vertically between
   the two units. (ONLY THE 12 PINS OF THE IC ARE SEEN FROM THE BACK)

 7 After locating the IC locate 3 sets of unsoldered jumper pads between
   the IC pins.

 8 Make a solder bridge between the top 2 pads,then the middle 2 pads,then
   between the bottom 2 ONLY of the bottom set of 3 pads.

                   REAR VIEW OF FRONT PANEL

   / ------\  12 PIN   O  *  O                        /---------\
  / VOLUME  \  IC ->      |<-SOLDER BRIDGE           /           \
 / CONTROL   \         O  *  O                      /             \
/             \                                    /     VFO       \
\             /        O  *  O                      \  CONTROL     /
  \         /             |<-SOLDER BRIDGE           \           /
    \-----/            O  *  O                        \--------/

                       O  *  O
                          *  DO NOT SOLDER THE TOP PAD
                       O  |< O   OF THESE 3 PADS
                          * \SOLDER BRIDGE HERE

 9 RE-ASSEMBLE RADIO .

10 RESET MICROPROCESSOR.

11 This mod will extend the RX range as well as the TX range of the above
   unit.The display will have a range   from 29mhz to 299 mhz but this is
   just an erroneos display as the PLL on a typical radio will rx between
   130 mhz and 180mhz with a TX range that may be a little beyond these
   these frequencies.


   GOOD LUCK AND HAPPY MODING

   73 CARL

   Packet: VE3ZCO@VE3GYQ

   Internet: [email protected]

   CARL VE3ZCO [44.135.80.8]