TV antennas are making a comeback. Due to technical changes and advances in HDTVs, more and more people are looking to buy antennas. Over- the- roof antennas are required for the OTA or over the air digital signals. Antennas are also necessary when you have a satellite service but need local channels.

Set-top antennas today, provide cutting edge designs-but they can also set you back by hundreds of dollars. Even the rooftop antennas have gone changes in designs. No longer are the antennas, monster-like and scary; you get many compact designs that fit easily under awnings and in the eaves of roofs. These antennas can also be amplified to boost signal receptions.

There are two methods of broadcasting OTA signals-the eight bit vestigial side band modulation technique and the coded orthogonal frequency division multiplexing. Each of these systems has pros and cons. The 8 VSB utilizes the broadcasting spectrum more efficiently so the US laws have made this as the broadcast standard for US digital TVs. The reason why antennas have become even more necessary is the fact that the 8VSB signals are difficult to receive in many areas.

An important factor while considering antennas for your HDTV are the distance of your home from the broadcast station; for distances over 10 miles, you need attic mounted or rooftop antennas. On the contrary, the indoor antennas are sufficient for distances less than 10 miles. The second drawback of US 8VSB broadcast is that its multidirectional performance is quite poor. The multidirectional performance of 8VSB is poor so you need to invest in a good unidirectional antenna for receiving a good signal. Such antennas are easily available in the electronic stores. Do remember to place the antenna at the highest point on your roof if you live more than 15 miles from the broadcasting station.

The front-to-back ratio of an antenna is another factor important to consider. Larger this ratio, lesser is the interference in signal and better the picture quality. If you are living in an area with very tall buildings, then signal interference is a major issue; a highly directive antenna with a good front-to-back ratio can help your signal reception greatly.

HDTVs come with HDTV receivers. Some TVs also come with built in HDTV tuners called ATSC. The High def signals can be tuned to be received on regular/cable channels and a good rooftop antenna can receive this.

For getting the best HDTV signal reception, you need to use high aperiodic antennas that can be practically mounted on the rooftops or attics. You should alos note that any poor-quality signals and dropped signals are usually due to antenna issues. In fact, many electronic stores have maps provided by surveyors which indicate which antenna type is best suited for your area of residence. So you can talk to customer reps regarding the choice of an antenna. The price of antennas usually lies in the range of $80 to $100. If installation on rooftop is a major problem for you, you can consider purchasing the antenna from a retailer who also offers to install the antenna at no extra cost.

Author's Bio: 

Apart from the antenna, be sure you own good-value HDTV. Here is 2 of my top recommendation: L32HDF11TA Review for LCD and Samsung UN32D6000 Review for 32 inch LED.