Digital TV Broadcast is transmitted over two frequencies from the transmitting station. To receive Digital TV Broadcast, DVB-T2 decoders or digital TVs MUST receive digital transmissions from nearby transmitters via UHF antenna that are properly installed. Tuning can be done automatically or manually. With auto tuning, it will automatically accept all digital TV broadcast channels. However, if the tuning is done manually, you would have to tune twice to receive the frequency. Please refer to frequency information here .