High Definition TVs are now in full swing because of their crystal clear, high resolution pictures. HDTV is a new form of broadcasting TV channels and many networks are now offering this programming. To watch HDTV you can either pay your cables or satellite provider, or you can receive local HDTV broadcasts using an off air HDTV antena.
No. HDTV antenna is not an engineering design but is solely a method of selling antennas. These antennas are basically uhf antennas. People due to lack of knowledge still buy a second antenna for HDTV channels in addition to regular TV antennas they already have. Many of the networks broadcast the channels in the UHF band almost 90% whereas the 10% HDTV channels fall in VHF band. So to get all of these excellent channels you just need a simple, regular VHF/UHF antenna, not some optimized HDTV antenna.
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Another misconception that exists in the market is that you need more gain for digital reception. In reality, digital transmission system has even better interference and noise immunity and the HD signal can be decoded at lower signal to noise ratios than the analog signal. High F/B value, however, is desirable to combat signal multi-path phenomena created by TV signal reflections off surrounding objects.To choose the best HD antena follow our step-by-step HDTV antenna selection guide. It will help you to figure out which type of antenna you need - directional or omni-directional, indoor vs. outdoor and amplified or non-amplified. To choose the specific HDTV antena model of the required type, consult HDTV antenna reviews.
The HDTV broadcast is a digital broadcast consisting of a stream of bits. High definition tuner is required for picking up and decoding the signals. High definition broadcast is about 5 times sharper than the analog NTSC broadcast. The resolution is doubled, of up to 1080 horizontal lines instead of 480 horizontal lines in NTSC broadcast. HDTV is widescreen, supporting 16:9 aspect ratio instead of conventional 4:3. The digital broadcast can also have a progressive image display which means that the image is shown continuously in full. This eliminates the flickering common in interlaced video formats.