... off signal transmission, used in remote control, RC module ASK transmitter and receiver, SAW Oscillator Transmitter, ... and transmitter for on-offsingal: superregeneration receiver module and Superheterodynereceiver.They areused on wireless security system ... type Fixed code / rolling code/Learning codeApplicaiton:* Remote keyless entry;* Garage door controller;* Wireless keyboard, mouse, Car Security ...