TV Antenleri ve Uydu

 [Construction – Section 114]

A satellite used for the transmission of television programs directly to the receivers of the audience. The programs can also broadcast stations of the head, including from cable operators, receive and provide up to several thousand participants with television.

Satellite Dish

A satellite dish for receiving television broadcasting programs such as radio or television, or sometimes other services provided by a satellite in geostationary orbit aired. Because of the great distance, the signals on Earth very weak. In order to receive needed for the Ku-band satellite dishes with a diameter of about 60 cm. The area, and thus the sensitivity increases with the square of the diameter parabolic antenna.

To give one example: the reception area of a large antenna 85-cm is twice as large as that of a large 60-cm antenna. Unlike the broadcast frequencies in the VHF band, the radiation in the Ku-band considerably dampened by humidity and the signal strength can be increased by more than 5 dB decrease. This means that with a large antenna 60-cm when heavy rain can one not watch television.

The satellite dish consists of a parabolic mirror, and the receiving head with integrated frequency converter and IF amplifier, the so-called low-noise block converter. A coaxial cable is director of the received signal to a receiver in the house or a distribution facility. Today, almost everyone has his own digital TV receiver.

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