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LQ/FOR-22 DB9 to ICOM M803

LQ/FOR-22 DB9 to ICOM M803

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    • Connecting an ICOM M-803 to an FOR-22 or LQ 4WG2 is straightforward.

    1. Ensure the Relay/GPO on the LQ/FOR-22 is firing as expected.

    2. Create a cable as follows. Use of a terminal block to DB9 adapter will make this easier:

    LQ DB9

    ICOM M803 DB9

    1 AUDIO  OUT+

    1 MOD +

    2 AUDIO IN +

    4 AF +

    3 N/C

    N/C

    4 N/C

    N/C

    5 PTT

    8 SEND

    6 AUDIO OUT -

    2 MOD -

    7 AUDIO IN -

    5 AF -

    8 N/C

    N/C

    9 GROUND

     3 GROUND

    1. In the ICOM M803 menu system, set Remote > MOD to AF/MOD as follows:

    image-20250616-172338.png
    ICOM Menu

    If using a standard ICOM cable already connected to the radio, the pinout (from the radio’s perspective) is as follows:

     

    1 MOD +

    Black

    1 AUDIO  OUT+

    2 MOD -

    Brown

    6 AUDIO OUT -

    3 GROUND

    Red

    9 GROUND

    4 AF +

    Orange

    2 AUDIO IN +

    5 AF -

    Yellow

    7 AUDIO IN -

    8 SEND

    Gray

    5 PTT

     

     

     

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