ELECTRONIC BOARD; FUNCTION: RF 439MHZ; REF.TELEMOTIVE: E13653-5+E10197-1 FREQUENCY AK05-439; USE: FOR TRANSMITTER 18K SERIES TELEMOTIVE TELEMOTIVE CONTROL SYSTEM; ————— RF BOARD 439MHZ RADIO CONTROL SYSTEM SERIAL 18K;TELEMOTIVE; P/N E13653-5+E10197-1 FREQUENCY AK05-439;