Kenwood Tkm-707 Mods Jun 2026

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.

Spurs, harmonics, reduced output filtering. Kenwood Tkm-707 Mods

| Modification | Improvement | Difficulty | |--------------|-------------|-------------| | Re-capping PSU board | Reduce ripple/noise | Medium | | Adjusting TX bias (VR1, VR2 on RF unit) | Better IMD | High (requires service monitor) | | Adding heatsink fan (12V triggered by TX) | Reduced PA temperature | Low | This paper is a draft for informational purposes only

to work with contemporary peripherals. While the unit was designed to pair with specific Kenwood accessories, many operators modify the interface to support third-party antenna tuners. This often requires adjusting the control cable pinouts to ensure compatibility with automatic tuners from different manufacturers, allowing the radio to be used with a wider variety of antenna systems. 2. Adaptation for Digital Modes To keep the Spurs, harmonics, reduced output filtering