can suffer from "cold" solder joints that cause intermittent reception or power loss. Resoldering the main PCB and Molex connectors is a standard reliability upgrade.
After performing your mods, always test into a dummy load first. Never modify for 11m (CB) operation—it’s illegal, and the radio will bleed harmonics across entire bands. Keep it clean, keep it ham, and enjoy the sleeper classic.
However, the TKM-707 came out of the box with maritime restrictions. To make it sing on the ham bands, you need to perform a few key modifications. Kenwood Tkm-707 Mods
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From the factory, the TKM-707 is a capable 150-watt PEP SSB radiotelephone, though many have found their units outputting less, sometimes due to age or conservative factory alignment. can suffer from "cold" solder joints that cause
: Keeping a detailed log and taking photographs before any work begins is vital for successful reassembly.
If using the radio for amateur digital modes, reduce power to 60–80W to avoid thermal stress. Never modify for 11m (CB) operation—it’s illegal, and
The TKM-707 does support Kenwood CI-V natively. Some operators have built an Arduino translator that reads BCD from the PLL and writes to an emulated CI-V bus – a complex mod requiring PLL injection point access.
: Internal adjustments can fine-tune the threshold for the voice squelch circuit. Hardware & Maintenance "Hacks"
The TKM-707 is excellent for digital modes because it has a stable oscillator. However, you need a proper interface (like a SignaLink USB or DigiRig).
: This is the most sought-after modification, intended to allow the radio to transmit across its full 2–30 MHz range, including MARS, CAP, and HAM bands.
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can suffer from "cold" solder joints that cause intermittent reception or power loss. Resoldering the main PCB and Molex connectors is a standard reliability upgrade.
After performing your mods, always test into a dummy load first. Never modify for 11m (CB) operation—it’s illegal, and the radio will bleed harmonics across entire bands. Keep it clean, keep it ham, and enjoy the sleeper classic.
However, the TKM-707 came out of the box with maritime restrictions. To make it sing on the ham bands, you need to perform a few key modifications.
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.
From the factory, the TKM-707 is a capable 150-watt PEP SSB radiotelephone, though many have found their units outputting less, sometimes due to age or conservative factory alignment.
: Keeping a detailed log and taking photographs before any work begins is vital for successful reassembly.
If using the radio for amateur digital modes, reduce power to 60–80W to avoid thermal stress.
The TKM-707 does support Kenwood CI-V natively. Some operators have built an Arduino translator that reads BCD from the PLL and writes to an emulated CI-V bus – a complex mod requiring PLL injection point access.
: Internal adjustments can fine-tune the threshold for the voice squelch circuit. Hardware & Maintenance "Hacks"
The TKM-707 is excellent for digital modes because it has a stable oscillator. However, you need a proper interface (like a SignaLink USB or DigiRig).
: This is the most sought-after modification, intended to allow the radio to transmit across its full 2–30 MHz range, including MARS, CAP, and HAM bands.