Once these simple hardware changes are made, a user can turn the radio on, and the VFO will be active. The only remaining limitation is hardware-based: the TKM-707's internal filters and synthesizer are typically designed to operate up to around 25 MHz, so while you may be able to tune to 28 MHz, actual transmission is unlikely or highly inefficient.
You're looking for modifications (mods) for the Kenwood TK-M707, a popular amateur radio transceiver. Here are some in-depth details on various mods that enthusiasts and users have explored:
Beyond frequency expansion, many owners seek to improve the radio's basic functionality for ham radio use.
