Kenwood Tkm707 Mods ✓

Kenwood TKM-707

The is a legendary piece of marine communications gear, valued for its 150W RF output and robust build. While it was originally designed for the high-seas SSB market, many hobbyists and amateur radio operators look to modifications to unlock its full potential for ham radio bands or to resolve aging hardware issues.

Reset:

You must perform a full CPU reset (hold MR + Power On) for the changes to take effect. 📻 12.5 kHz Step Modification kenwood tkm707 mods

The unit can get very warm during long transmissions or extended "HI" power operation. Ensure at least 15 cm (6 inches) of clearance behind the unit for ventilation. SWR Protection: Kenwood TKM-707 The is a legendary piece of

Ramon unplugged the mic, unscrewed the faceplate, and pocketed the VCO chip as a talisman. Outside, the satellite dome blinked green—impersonal, encrypted, useless for talking to shepherds. You have to open the radio and locate

The Kenwood TKM-707 is a VHF/UHF handheld transceiver (assume 2m/70cm dual-band). Common mod goals:

AUX Port Modification

By default, the TKM-707 is restricted to the standard 2-meter amateur band (144–148 MHz). However, many operators wish to transmit on MARS (Military Auxiliary Radio System) or CAP (Civil Air Patrol) frequencies, which lie just outside the ham bands.

You have to open the radio and locate the control logic board.
Historically, this involved lifting a specific leg on a logic chip or cutting a trace on the TP (Test Point) lines.
However, unlike cheaper radios, simply cutting the diode does not give you "free tuning" from 136–174 MHz. It usually expands the range by roughly 2–4 MHz on either side (approx 142–152 MHz).