Kenwood Tkm707 Mods -

For heavy amateur radio use (like FT8 or RTTY), adding a small 12V computer fan to the rear heatsink is a highly recommended non-invasive modification to prevent thermal throttling. 5. Technical Quick Reference Original Spec Modified Potential TX Frequency Marine Bands Only 1.6 MHz – 30.0 MHz Power Output Stable at 150W with cooling Memories 198 Channels Fully programmable via front panel Antenna Tuner Works with AT-300 Compatible with various LDG tuners via interface mods

Because these units are decades old, certain "maintenance mods" are required to keep them operational. kenwood tkm707 mods

The TKM-707 uses a coin-cell battery to retain memory channels. If your radio resets every time it's powered off, you'll need to replace this battery , which may require soldering. For heavy amateur radio use (like FT8 or

The most sought-after mod for the TKM-707 is the MARS/CAP (Military Auxiliary Radio System) expansion. By default, the TKM-707 is locked to marine frequencies and will not transmit on amateur bands. The TKM-707 uses a coin-cell battery to retain