Active television antennas are a completely different technique. Reception of the signal in this situation is due to modern amplifiers. It is very important to choose them correctly depending on the place and features of the signal — in this case there will be a clear and high -quality signal always. In no case should you save on such antennas. Chinese poor -quality goods will cost a lot of nerves, and in this case the proverb that the mean pays twice in this case.