Kenwood Tkm707 Mods Link

Out of the box, the TKM-707 is locked to the marine bands (2–27.5 MHz in simplex/half-duplex). For amateur use, it’s almost useless. For marine operators, there are still performance tweaks that can bring this 1990s workhorse into the modern era.

On the main circuit board (the Control Unit), there is often a specific diode matrix or jumper configuration. kenwood tkm707 mods