Kenwood Tkm707 Mods -

The most popular modification for the Kenwood TKM707 expands its transmit capabilities outside standard marine allocations. This allows operation across all amateur radio HF bands. The Diode Matrix Modification

While the TKM707 has a rugged internal speaker, it is optimized for high-volume marine environments rather than high-fidelity audio. kenwood tkm707 mods

Modifying a marine transceiver to transmit on non-marine frequencies carries responsibilities. The most popular modification for the Kenwood TKM707

The original design often used incandescent bulbs or early LED strips that have faded. Modifying a marine transceiver to transmit on non-marine

I recently picked up a Kenwood TKM-707 (the commercial/marine version of the TS-50) and wanted to share the most useful mods I’ve found. This radio is a tank, but it needs a few tweaks for ham use.

I can provide the exact jumper location or pinout diagrams for your specific board revision. AI responses may include mistakes. Learn more Share public link

: The rear of the unit can get warm during long transmissions. Adding an external fan to the rear heatsink is highly recommended for 150W operation. Source ⚠️ Important Technical Notes

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