Kenwood Tkm-707 Mods !!install!! Jun 2026

: It delivers a substantial power output, usually around 150 watts, ensuring signals can reach shore stations or other vessels even in challenging conditions.

The TKM-707 originally comes with . There is no known "hardware mod" to expand this total number, as it is a firmware limitation of the control logic. However, you can optimize the use of existing memory channels to cover your preferred frequencies more effectively. Kenwood Tkm-707 Mods

Spurs, harmonics, reduced output filtering. : It delivers a substantial power output, usually

| Feature | Modification Type | How to Achieve | Result | | :--- | :--- | :--- | :--- | | | Hardware | Clip Diode D312, D313, D314 | Transmit on LSB, USB, and AM across wider frequency range, including ham bands. | | Activate VFO Mode | Hardware + Key Combo | Clip Diode D313, then press C + 84 ENT | Switch from channelized operation to continuous frequency tuning. | | Configure for Ham Use | Hardware | Set DIP switches S301-1: OFF, -2: OFF, -3: ON, -4: ON | Enables full ham band operation with dealer mode and US destination. | | CPU Reset (Clear Memory) | Key Combo | C + Power On | Clears all stored memory channels and performs a full reset. | | CPU Reset (Keep Memory) | Key Combo | ENT + Power On | Resets the CPU but retains programmed memory channels. | | Adjust Power Output | Hardware/Alignment | Internal realignment via service manual. | Potentially boost output from 150W to 180-200W PEP. | | Enable/Disable Key Beeps | Key Combo | C+80 ENT or C+81 ENT | Turn confirmation tones on or off for silent operation. | However, you can optimize the use of existing

The TKM-707 is a close relative of the Kenwood TRC-70, and many of the modifications are derived from that platform. The radio is designed for the marine bands and offers a solid foundation for amateur use, making it a great candidate for a range of hardware and software tweaks.

Internal modifications should be performed by a qualified electronics technician or a licensed radio engineer. Improper handling of high-voltage components or sensitive digital boards can lead to equipment failure or personal injury.

: While the TKM-707 is a single-piece unit, some users adapt its mounting brackets or utilize third-party external speakers (via the 4Ω external jack) to improve ergonomics in tight shack spaces or vehicle cabins. Technical Specifications for Modding Current Requirement 30A at 13.6V DC for full 150W output Standard RX Range 500 kHz to 30 MHz (General Coverage) Standard TX Range 2 MHz to 30 MHz (Marine Bands) Output Power High (150W), Medium (50W), Low (25W)