Kenwood Tkm-707 Mods Fixed -
Disclaimer:
This paper is a draft for informational purposes only. Modifications described may violate FCC/ITU regulations, void warranties, or damage equipment. Perform mods at your own risk.
Mods for this unit typically allow for transmission outside of factory-set marine bands, enabling its use on various amateur HF frequencies. Amateur Band Adaptations: 160m Band: Kenwood Tkm-707 Mods
6. Recommended Test Equipment Before Modding
Solder Joint Reflow
: Like many older Kenwood models (such as the DG-1 digital display Disclaimer: This paper is a draft for informational
- Kenwood TK-M707 user manual and documentation
- Amateur radio forums and communities (e.g., Reddit's r/ amateurradio)
- Online mod and upgrade tutorials
- Electronics and radio repair shops
The Fix:
Locate the trimmer capacitor (TC1) on the PLL board. By tweaking this or replacing a fixed resistor in the clarifier circuit (R158), you can expand the adjustment range from ±50Hz to ±200Hz. Kenwood TK-M707 user manual and documentation Amateur radio
