Kenwood Tkm707 Mods !!hot!! < Fresh × SUMMARY >

The Story Begins

  1. Remove battery and antenna.
  2. Unscrew case screws; open case carefully.
  3. Locate speaker, desolder wires, note polarity.
  4. Fit replacement speaker (matching impedance), solder wires, secure with foam/adhesive.
  5. Reassemble and test audio at low volume.

Result:

Continuous TX from 1.6 MHz to 30 MHz, AM/FM modes still limited by hardware.

The TKM-707 ships with USB only. To get LSB for 40m/80m/160m: kenwood tkm707 mods

Result:

Widebanding allows the radio to attempt transmission on any frequency it can tune to, though performance may degrade outside factory-specified filter ranges. Performance & Functional Enhancements Kenwood TKM-707 Q&A: Troubleshooting, Repairs, and More The Story Begins

If the factory "beep" is too loud for your quiet home shack, you can adjust (Beep tone) and (Alarm tone) internally to customize the audio feedback. 4. Important Clarification: TKM-707 vs. TM-G707 Remove battery and antenna

For better performance in non-marine environments, consider these hardware tweaks: Antenna Coupler Integration: The radio is frequently used with the MAT-100 automatic antenna coupler

The Goal:

Unlock the transmitter to cover the full 0.5 MHz to 30 MHz range of its receiver.