Kenwood Tkm707 Mods [exclusive] Page

features a general coverage receiver (500 kHz to 30 MHz), transmit capabilities are factory-restricted to specific marine bands. Modifications found on sites like mods.dk often detail how to "unlock" the radio for wideband transmit, though this is primarily used for emergency or amateur radio applications.

Audiophiles and DXers often modify the audio output stage to lower the low-frequency cutoff point.

In many jurisdictions, transmitting outside of authorized marine channels on a type-accepted marine radio violates telecommunications laws. Ensure you hold the proper amateur radio or MARS licenses before testing your expanded transmit capabilities. kenwood tkm707 mods

After expansion, ensure operation within amateur bands where the TKM-707’s low-pass filters are still effective (designed for marine bands). Spurious emissions may rise outside 4–26 MHz.

: Tie all signal grounds together to prevent RF feedback loops. Critical Safety and Legal Warning features a general coverage receiver (500 kHz to

| Aspect | Stock TKM-707 | Modified Unit | |--------|---------------|----------------| | | Marine channels (2 kHz steps) | 1.6–30 MHz continuous (10 Hz steps) | | TX Power (PEP) | ~100W | Adjustable 20–150W | | Clarifier Range | ±10 Hz (RX only) | ±1.5 kHz (RX+TX) | | Legal Use | Marine (Part 80) | Requires amateur license (Part 97) |

The TKM-707 does not feature a modern USB plug-and-play soundcard interface. To run high-performance digital text and data modes, you must interface the rear accessory jack with an external soundcard modem like a SignaLink USB or Digirig. Custom Cable Pinout Configuration Spurious emissions may rise outside 4–26 MHz

Allows for precise tuning on modern repeater splits without "off-frequency" distortion. 💡 LED Backlight Upgrade

: Disconnect the DC power cable and antenna inputs from the transceiver.