Measure how specific modifications affect audio quality, transmit power, receiver sensitivity, spurious emissions, and user ergonomics of the Kenwood TKM-707.
: 198 total channels, including 150 preprogrammed ITU channels and 62 user-programmable spots.
The microphone audio passes through a pair of 2SC3324 transistors before hitting the balanced modulator.
: Always disconnect the 13.6 VDC power cable before opening the chassis.
: Like many older Kenwood models (such as the DG-1 digital display
Reduces drift from ±50 Hz to ±1 Hz over temperature.
Factory solder joints degrade due to high thermal cycling over decades of use.
Heavy oxidation and rust compromise Phase Locked Loop (PLL) stability.
Originally designed as a rugged, high-performance , the Kenwood TKM-707 (and its commercial/land counterpart, the Kenwood TRC-70 ) is highly prized by amateur radio operators and maritime enthusiasts alike. Boasting a robust 150-watt PEP output, a double-conversion superheterodyne receiver, and 198 memory channels, this heavy-duty transceiver remains an excellent candidate for modernization and modification.
Measure how specific modifications affect audio quality, transmit power, receiver sensitivity, spurious emissions, and user ergonomics of the Kenwood TKM-707.
: 198 total channels, including 150 preprogrammed ITU channels and 62 user-programmable spots.
The microphone audio passes through a pair of 2SC3324 transistors before hitting the balanced modulator. Kenwood Tkm-707 Mods
: Always disconnect the 13.6 VDC power cable before opening the chassis.
: Like many older Kenwood models (such as the DG-1 digital display : Always disconnect the 13
Reduces drift from ±50 Hz to ±1 Hz over temperature.
Factory solder joints degrade due to high thermal cycling over decades of use. Heavy oxidation and rust compromise Phase Locked Loop
Heavy oxidation and rust compromise Phase Locked Loop (PLL) stability.
Originally designed as a rugged, high-performance , the Kenwood TKM-707 (and its commercial/land counterpart, the Kenwood TRC-70 ) is highly prized by amateur radio operators and maritime enthusiasts alike. Boasting a robust 150-watt PEP output, a double-conversion superheterodyne receiver, and 198 memory channels, this heavy-duty transceiver remains an excellent candidate for modernization and modification.