Polarisation plane:
To better utilise the available frequency range, satellites bro-
adcast neighbouring programmes with opposite polarisation
(horizontal and vertical or laevorotatory and dextrorotatory).
To receive both polarisation planes you require either two
Single LNCs or a V/H LNC.
Receiver: see satellite receiver
Satellite:
Description of a satellite, usually stating name and orbital
position,
ASTRA 19° East
EUTELSAT 13° East
Satellite receiver:
signals received from the LNC, and then converted, cannot
be processed by the television set. They are processed in the
satellite receiver so that its outputs carry regular audio and
video (AV) signals, which can then be passed on to the televi-
sion set and processed there.
SCART:
Connector standard used for television sets, video recorders,
satellite receivers and other home electronics equipment to
transmit Audio (sound) and Video (Picture) signals (AV).
Software update:
Digital television is a new medium, providing not only impro-
ved sound and picture quality, but also the option of providing
interactive services. These new services are constantly being
developed and improved by providers. To utilise these servi-
ces, it may be necessary to occasionally update the software
of the digital receiver.
Transponder:
Located on the satellite, used to process one or more pro-
grammes. It receives the signal from the ground station,
amplifies it, and transmits it back to earth.
Universal LNC:
Used to receive the ranges FFS (10,70 - 11,70 GHz), BBS
(11,70 - 12,50 GHz) and FFS High Band (12,50 - 12,75 GHz).
The entire range is divided into two Bands:
Low Band: 10,70 - 11,80 GHz; LOF 9750 MHz
High Band 11,70 - 12,75 GHz ; LOF 10600 MHz
Service voltage:
LNCs are supplied with power by means of the coaxial cable,
to achieve this the receiver supples either 14 or 18 volt power
Interim frequency:
The frequency range broadcast by the satellite cannot be
transmitted via a cable. Therefore the LNC converts the sig-
nal to the interim frequency range of 950 to 2150 MHz. This
makes it possible for the digital receiver to receive and pro-
cess the signal.
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