LNB/LNC (Low Noise Block converter):
Reception unit at the focal point of the antenna, converts the frequency range of the satellite into the intermediate frequen- cy of the digital receiver.
LOF:
Local oscillator frequency: stated in terms of MHz or GHz; varies depending on the LNB and the frequency range recei- ved.
Receiving frequency of the digital receiver = broadcasting fre- quency of the satellite - LOF
Modulation at 22 KHz:
Apart from the 14/18 Volt switching facility, this serves to switch between two LNBs. In the case of a Universal LNB it serves to switch to the
Parabolic dish:
Dish made of metal or coated synthetics, with a parabolic shape, to focus the electromagnetic waves broadcast by the satellite at a focal point
Polarisation plane:
To better utilise the available frequency range, satellites are- configured so that neighbouring transponders broadcast with opposite polarisation (horizontal and vertical or
Receiver: see satellite receiver
Satellite:
Description of the satellite, usually consisting of the name and the orbital position,
ASTRA | 19° East |
EUTELSAT | 13° East |
Satellite receiver: |
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The signals received and converted by the LNB cannot be processed by the television set. They are processed by the satellite receiver so that the audio and video (AV) signals pro- duced at its outputs can be transmitted to the television set.
SCART:
Software update:
Digital television is a new medium that provides not only improved picture and sound quality, but also provides the faci- lity of providing interactive services. These new services are continually being developed and improved by the service pro- viders. To use these services, it may therefore be necessary to update the software of the digital receiver.
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