What you ought to know before buying an HDTV antenna. It looks pretty basic, it could help many people to head off wasting money buying useless trash and then spending hours trying to get HD signal out of it.
Because most DTV stations employ channels in the UHF band, you’ll likely require an antenna that can receive UHF signals. But if any stations in your area broadcast on VHF, then you’ll need a combination VHF/UHF antenna. Receiving VHF and UHF calls for different types of antennas. If your existing antenna is VHF-only, then you’ll need to replace it.
An antenna is just a piece of metal resonating at some specific frequency and having desirable electrical properties and radiation pattern. You may have Ultra High Frequency (UHF) antenna or Very High Frequency (VHF) antenna,. To be fair, there are some antenna properties that are important for HD signal reception.
A good indoor antenna can receive digital television signals approximately 15-20 miles away from broadcast towers.
An indoor antennas don’t perform as good as outdoor tv antennas An indoor TV antenna can pick only the closest stations and the strongest signals. For many, that is adequate. If you live in a big city, or close to the towers, you will be able to get a lot of over-the-air HDTV channels with a simple indoor antenna.
An amplified out door antenna is better than an indoor antenna in most cases.
Among the most important factor in finding out which type of antenna you’ll need for receiving dtv signals, is by figuring out how far TV broadcast towers are from your house. Calculating this distance might be difficult to do on your own, but a useful website that’ll determine the distance for you for free at www.tvfool.com
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