Kenwood Tkm707 Mods //free\\ · Premium & Pro
: Tap into the switched 12V DC line inside the radio, or run the fan wires externally to your main station power supply.
The TKM-707 is frequently modified to operate on frequencies outside its original marine bands.
Bond the radio chassis to a thick copper ground plane strip. kenwood tkm707 mods
: Contains a dedicated (though often subscription-based) list of articles regarding hang-ups and dip-switch settings Manuals (Repeater Builder)
: The unit typically has a 1 kHz resolution step , which is coarser than dedicated ham rigs but sufficient for most marine/CB use. : Tap into the switched 12V DC line
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Because these units are decades old, certain "maintenance mods" are required to keep them operational. If you share with third parties, their policies apply
The REC button on the front panel can be repurposed. By default, it may be unused or set for a marine-specific function. Through simple internal wiring changes (running a wire from an unused front panel switch to a processor pin), the REC button can be reconfigured to act as a direct, one-button switch to or other custom functions. This is a popular mod for those who find the C + 84 + ENT sequence cumbersome.
One of the most common complaints regarding the TKM-707 is the receive audio quality. The stock internal speaker is adequate but lacks richness, and the audio shaping can sound "tinny" or harsh at high volumes.
Locate the specific programming diode responsible for regional/marine locking (consult your specific board schematic layout, typically designated as or D15 on standard export models).
: Locate the Automatic Level Control (ALC) trim pot on the main TX unit board. Adjusting this slightly prevents over-modulation while maintaining peak talk power.