The transmitter/receiver using the latest COFDM technology and AES128 digital encryption that allows you can be assured ofclean sec urevideo&data reception.It can also operate in a variety of transmission bandwidths allowing the user to trade off image quality against range to suitall types of applications.Excellent range,performance and spectral efficiency are offered when operating in the optional narrow bandwidth mode which,combined with ultra efficient H.264 encoding allows true broadcast quality pictures to be transmitted in narrow-band.System is capable the wireless transmission in NLOS(non-line-of-sight)environment.With the COFDM modulation and video compression mode guarantee the stability and quality of transmission.In addition,it’s multifunctional,flexible and easy to be carried and installed everywhere.