Icom M700 | Mods

The stock M-700 is designed for voice communication—specifically USB (Upper Sideband) for long-range marine traffic and DSC (Digital Selective Calling) for distress.

The IC-M700's native 48-channel limit is a significant bottleneck for modern amateur use. SRAM Expansion icom m700 mods

Fire up the radio, hold the mode switch to "CW," and turn the VFO knob. You should now hear the relay click across the entire HF spectrum. Press PTT – you will have transmit capability on every HF ham band. You should now hear the relay click across

If the 10-key numeric buttons are unresponsive, there is often a small toggle switch, , on the Matrix board that can be used to reactivate them. Audio and Interface Upgrades Audio and Interface Upgrades If you have a

If you have a steady hand and an oscilloscope, consider these:

While this mod covers most HF bands, reaching the 10-meter band (28 MHz) typically requires more complex hardware modifications beyond a simple jumper. 2. Memory and Programming Unlocks