Icom M700 Mods ((new))

For detailed technical documentation on modifying the Icom IC-M700

. Below is a summary of the most common and effective modifications for this unit. Core Frequency & Programming Mods

The Problem: As a marine radio, the stock M700 is locked to the ITU maritime bands. It transmits only on frequencies between 1.6 MHz and 27.5 MHz in specific marine channels (with some gaps). It will not transmit on the 80m, 40m, 20m, or 17m amateur bands out of the box. You can listen to hams, but you cannot talk back. icom m700 mods

The M-700 is almost always paired with an Icom AT-130 or AT-140. While not a modification to the radio chassis itself, the "mod" here is often in the installation.

Keypad Activation: If the front-panel 10-key buttons are unresponsive, toggle the small switch S1228 located on the Matrix board. Advanced Amateur Radio Mods For detailed technical documentation on modifying the Icom

Which of those follow-ups would you like?

Part 7: Summary Checklist – The Ultimate M700

If you want the "perfect" amateur-grade IC-M700, here is your shopping list of modifications: It transmits only on frequencies between 1

If it is cut, soldering it back together enables wide-band transmit.

For deep technical dives and step-by-step guides, refer to the IC-M700 Mods repository on GitLab or the extensive archive at Do you have a specific version