Icom M700 Mods -

: Available on the Icom Japan Support site, this is necessary for identifying board locations like the Logic and Matrix boards mentioned above. IC-M700 Mods - Elliott Liggett - GitLab

I can provide the specific step-by-step schematic references for your exact project. Share public link icom m700 mods

: Modifying the microphone gain and adding a speech compressor/processor can significantly improve signal punch for DX contacts. : Available on the Icom Japan Support site,

You can modify the mic socket to accept newer microphones or high-quality dynamic mics with XLR outputs. Speech Processor: You can modify the mic socket to accept

The most comprehensive archive for specific hardware jumper settings and legacy repair articles.

While the radio works well on amateur bands, it lacks the narrow filtering found in dedicated ham rigs, which may make it sensitive to nearby interference during contests.

For full CAT control: Use the Arduino to output a control voltage via a DAC (Digital-to-Analog converter) back to the VCO line. You can then tune the M700 from your PC using Ham Radio Deluxe. This is advanced, but the schematics are widely available.