features a massive cooling system that allows it to transmit at a full 150W for over an hour continuously. This makes it a favorite for "bulletproof" base station setups where reliability is more important than flashy features. Preservation and Heritage The story of the
This is the most common modification. It allows the radio to transmit outside the standard amateur bands. kenwood tkm707 mods
This article covers every major modification (mod) for the Kenwood TKM-707, from the essential “MARS/CAP” frequency expansion to power adjustments, audio upgrades, and display brightness fixes. features a massive cooling system that allows it
Disclaimer: The modifications described above involve opening the radio and soldering components. These procedures will likely void any remaining warranty and, if done incorrectly, can damage the radio. Always ensure you are operating within the legal frequency privileges granted by your license. It allows the radio to transmit outside the
This usually involves a firmware-level change via diode/jumper configuration.
This adjustment should always be performed with a proper dummy load and a reliable peak-reading wattmeter. It is advisable to set the LOW and MID levels first, leaving the HIGH adjustment for last to avoid overtaxing the radio's final transistors.
Adjust the VR1 (MIC GAIN) potentiometer inside the radio to increase modulation if you are consistently getting reports of low audio. ⚠️ Important Considerations