Icom IC-725 (IC 725 IC725) transceiver mods reviews software and diagrams

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Icom IC-725 (IC 725 IC725)

Programming interface schematics for Icom:
Programming software for Icom IC-725 (IC 725 IC725) :
PDF User Manual for Icom IC-725 (IC 725 IC725) :Icom IC-725 Instruction Manual
PDF Adjusments Procedures Manual with schematics for Icom IC-725 (IC 725 IC725) :
Schematics for Icom IC-725 (IC 725 IC725) :

Mods for Icom Icom IC-725 (IC 725 IC725) :
    Icom IC-725 (IC 725 IC725) Enable preamp below 1.5 mhz
    Icom IC-725 (IC 725 IC725) Enable noise blanker in all modes
    Icom IC-725 (IC 725 IC725) post 1998 Version
    Icom IC-725 (IC 725 IC725) MARS modifications

Icom IC-725 (IC 725 IC725) technical specifications : Icom IC-725 (IC 725 IC725) technical specifications

Icom IC-725 (IC 725 IC725) Enable noise blanker in all modes

Remove bottom cover.
Locate R44 on Main Unit (100 ohm 1/4 watt resistor).
Lift the side of R44 closest the front of the radio.
Solder a piece of wire to the end of R44 that you lifted.
Solder the other end of the wire to W54 which is located near the left side of IC15. This will supply a constant 8 Volts lly the 8 Volts is only present when in CW or SSB Modes, disabling the noise blanker in AM & FM modes.

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PMR446
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