At 10: 30 on July 7, the standard terrestrial digital TV signal was officially sent from the 305-meter-high Liaoning color TV tower. The first phase of terrestrial digital TV single frequency network in Liaoning Province was successfully completed, which created the history of wireless digital TV in our province. &”;Wireless digital TV has solved the problem of mobile reception. It will satisfy the citizens&; TV complex and subvert the traditional thinking of the audience. &”; The person in charge of Liaoning Beidou Star Digital TV Media Company said: &”;Wireless digital TV will be gradually promoted in buildings, rural areas (areas without cable TV), vehicles and handheld mobile terminals.&”; As long as the handheld mobile terminal is used, citizens can watch TV programs synchronously in any area covered by wireless digital TV signals. Digital signals are all collected, produced, broadcast and received by digital technology. Compared with wired analog signals, the loss of wireless digital signals in the transmission process is basically zero, which can provide clearer pictures. Wireless digital signals save more bandwidth. One channel can only transmit one TV program, but now it can transmit 10 TVs.