... module.RY-TX1 is designed by the Saw Resonator, with an effective low cost, small size, and simple-to ... a high quality superheterodyne receiver module with VHF/UHF. The module adopting LSI circuit with high frequency and low noise ... garage door, autogates as retract type, brakes, GSM/GPS system, factory automatic, communication and security system etc. Characteristic: Modulation: ASK Voltage: 2 ...