Adds up to 120 extra channels. Since only one switch is needed, there's no complicated multiple switching as in binary or BCD PLL expansions, and no skips except for those already in the Channel Selector. Buffered oscillator output prevents possible loading effects. Wide range crystal trimmers allow exact frequency adjustment. High-quality PC board with screened parts overlay and solder mask.
Total bandwidth depends upon radio circuitry.
Due to the large number of crystal frequencies and mounting possibilities, the crystals and the hardware switch are not included in either kit. Installation should only be done by a qualified technician with access to the radio's service manual or schematic.