Provides a warmer, wider frequency response for clearer voice articulation. 2. Fan and Cooling Modifications
The is a legendary, heavy-duty marine Single Sideband (SSB) radiotelephone . Built with a rugged aluminum chassis and stainless steel components, it has long been a favorite for bluewater sailors, off-grid communication enthusiasts, and ham radio operators. However, out of the box, its factory programming restricts operations to standard maritime bands. kenwood tkm707 mods
The TKM-707's control unit utilizes an internal CPU (IC302), a firmware ROM (IC310), and an EEPROM (IC311) to manage its frequency matrices. Like many Kenwood radios of its era, frequency locking is managed via physical configuration components—specifically hardware matrix diodes or SMD 0-ohm jumpers located on the control board or behind the front panel. Executing the TX/RX Expansion Provides a warmer, wider frequency response for clearer
: Disconnect all power, remove the top and bottom chassis covers, and locate the main Control Unit PCB. Built with a rugged aluminum chassis and stainless
When searching for "707 mods," be very careful not to confuse your radio with its cousin, the Kenwood TM-G707 An HF/SSB Marine Radiotelephone (2-30 MHz). A VHF/UHF Dual-Band Mobile Radio. The Mod Difference:
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Because the TKM707 features a very compact chassis, heat dissipation is a limiting factor during extended transmissions, such as digital modes (FT8, RTTY) or long ragchews. Installing an Active Cooling Fan