One of the satellite TV antenna is the most important parts, the right choice which will provide quality reception of all your TV system. For this, we first must determine which channels you're interested in, and whether in your area of residence satellite coverage, which transmits them.
Satellite dishes come in various sizes, shape and material performance.
Mirror size of the antenna should be chosen depending on the height level of the signal, which transmits a satellite in your area. There are special tables to determine the appropriate diameter ratio and a signal level trays. In case some signal degradation (because of weather, for example), better to buy a little larger diameter antenna, than indicated in the table.
The form is divided into direct focal antennas (round) and offset (with a shift in focus). In direct focal converter is attached to two or three needles directly in the center, have offset the focus shifted down, so that they can fix almost parallel to the wall. In this position, rain and snow does not linger on the surface of the mirror, and hardware does not create additional interference. These antennas are easy to fifteen meters in diameter, with a larger diameter is preferable to direct focal model.
More antennas are separated by two types of suspension, which are the azimuthal and polar. Start simple and inexpensive, fixedly mounted and receives a signal from only one satellite, often used in offset dish. The second suspension is much more difficult and more expensive cost, but it allows you to receive a number of different satellites.
Satellite dishes mostly made from aluminum, thanks to its lightness, of steel, and plastic. Each material has its pros and cons - aluminum is easily deformed by accident, steel is strong, but the dyeing defects corrodes, and the quality and shape of the plastic deteriorates under the influence of the sun and temperature changes. buying antenna, Pay attention to dents and warping of its surface, as this impairs job.
Installing a satellite dish is made on a special bracket, which should allow to rotate the antenna in different directions for each of the settings of the reception signal from the satellite. bracket design is required to be reliable, well fixed, especially at high and windy places. After installing the antenna to the satellite connection is made and the setup of satellite channels.
