Y-ACC. 12″ is a cable interface between radio and tuner. Does not supply DC to tuner.
Radios: FT-857, FT-897, and FT-100 series (including “D” models).
Functionality: Pressi ng the tune button on the tuner changes the mode of the radio to CW (mode change does not appear on radio display), tunes, then returns the radio to the previous mode.