Here’s a detailed forum-style post covering common modifications for the Kenwood TKM-707, a rugged marine SSB transceiver often repurposed for amateur radio use.
after entering Alarm Test mode (pressing the ALARM key) to set the desired volume for alerts. VFO Control: kenwood tkm707 mods
“Loud and clear, Starbound,” Jack said. “What the hell did you do?” “What the hell did you do
The TKM-707 is frequently modified to operate on frequencies outside its original marine bands. The key ones are: Replacing the Backup Battery
Inside the bottom cover, locate the PA (Power Amplifier) board. You will see a row of small potentiometers (usually blue or white squares with a cross slot). The key ones are:
An often-overlooked mod: the lithium battery (CR2032 or similar) on the control board dies after 10+ years. Symptoms: lost memories, frequency jumps.