SR-FRS-4WV(UHF) is a low cost but high performance integrated walkie talkie module. With built-in high performance micro controller, narrow band rf transceiver and standard Uart interface, it can be easily used and succeed in all the walkie talkie function with good quality voice and long distance transmission. Users only need to connect external audio amplifiers, microphone or speaker with this module ,then it can work as a small walkie talkie .Simplified interface and ultra small size make this module into a wide range of applications, also can conveniently embed into various handheld devices to improve the comprehensive performance of end products.
Besides the excellent voice intercom, The more important feature is this module has the data/SMS transfer ability; up to 80 byte can be sent at one time; it is compliance with the standard UART transfer protocol;
2. Product performance
FM demodulation technique Based on digital signal processing technology；