Satellite antenna
Satellite antennas are used in various fields that need data from and passed through satellites. Satellite antennas are frequently used by owners of television sets to receive the signals from a particular satellite. This eliminates the need for cable connections between homes and television service providers. A satellite phone communications system or method may utilize a single antenna beam covering an entire area served by the system. Satellite antennas have more recently been used by internet providers as well. Antenna systems for receiving the signals transmitted by these satellites fall into two basic categories: fixed systems and mobile systems. A typical fixed antenna system is that used for receiving satellite television transmissions in one's home. Satellite antennas, in particular parabolic antennas popularly referred to as "satellite dishes" have come into widespread use with the advent of satellite-based television. A satellite dish antenna is generally a parabolic section having a round, elliptical or other configuration. A reflector functions to gather radio or microwave frequency energy transmitted from the feed horn or through the ambient environment from an external transmitter. The reflector can thus be used to receive and transmit signals to and from the satellite system. A satellite antenna mechanism typically includes a signal receiver device and an orientation adjusting apparatus for adjusting and fine tuning the azimuth and elevation angles of a satellite antenna set. Such satellite dish antennas require careful alignment in order to achieve a good reception performance.
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