Detailed Product Description

UHF system

After modulated by the QAM/QPSK/COFDM modulators, Digital TV TS signals are and mixed and sent to UHF transmitter directly. After magnified, these signals are feed to the transmitting antenna by wave-guide for transmitting. 

The advantages of this UHF system are that: it does not need LNB; the cost is low; the anti-jamming ability is strong; its easy to encrypt; it can offer data broadcast, NVOD and other operation besides digital TV.

Compositions and Functions

•               Combiner------it adds the multi-channel RF signals (single channel UHF within the power synthesizer, it doesnt need this machine).
•               MUDS transmitter------it inputs the digital modulating signals and outputs the big power transmitting signals after frequency conversion and power magnification. UHF transmitter is divided into 2 species: indoor broadband/single channel and outdoor broadband.
•               Wave-guide------it feeds the transmitting power to transmitting antenna.
•               Transmitting antenna-----it transmiss UHF power.