The Icom M700 was a tank. Built for the brutal salt spray of commercial shipping, its hefty chassis and reassuring click of the big rotary knobs promised a lifetime of reliable service. For most sailors, that was enough. For Eli, it was a starting point.
Allows storing entire Ham band segments instead of just a few fixed frequencies. icom m700 mods
Unlike modern radios that require complex software hacks or "firmware cracks," the M-700 mods are refreshingly analog. The radio uses a matrix of diodes on the control logic board to define its frequency range and operational modes. The Icom M700 was a tank
If the keypad is locked, hold [T Only] and [ENT] while powering on. ⚠️ Important Considerations For Eli, it was a starting point
: 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
| Mod | Difficulty | Time | Benefit | | :--- | :--- | :--- | :--- | | | Medium (Soldering) | 30 min | Transmit on all HF amateur bands | | Audio Coupling (C37/C133) | Easy | 15 min | Warm, clear receive audio | | Mic Bias & EQ | Medium | 20 min | Use modern condenser mics | | ALC Threshold (R28) | Medium | 30 min | Cleaner SSB output | | Noise Blanker Threshold | Advanced | 1 hour | Usable impulse noise reduction | | Arduino Digital Readout | Advanced | 2-3 hours | Digital VFO function | | Fan Thermostat Mod | Easy | 15 min | Improved thermal management |