ICR71A
         TRICKING THE ICOM R71A TO TUNE BELOW 100 KHZ

                       Bob Parnass, AJ9S


    The ICOM R71A general coverage receiver is designed for
    VLF reception down to about 97 kHz.

    The following steps will  confuse  the  microprocessor-
    based  controller sufficiently to permit reception down
    to 0.0 kHz:

      1.  If all 32 memory  channels  contain  frequencies,
          use  the FUNC and CLEAR buttons to clear a memory
          channel.

      2.  Place VFO/M switch into the M (Memory) position.

      3.  Using all the manual dexterity  you  can  muster,
          rock  the  MAIN TUNING knob back and forth, while
          simultaneously rocking the MEMORY-CH rotary  con-
          trol  to  switch  back and forth between a memory
          channel with a frequency in it and a clear memory
          channel.
CONTINUED IN FILE ICR71A.1

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