TECHNICAL TERMS
Modulator
Circuit in the satellite receiver or the VCR, for connection to the tv by means of an aerial cable.
Mode
determines whether a mono or stereo program is received.
Multifeed:
ODU, consisting of a dish and several LNBs for the reception from several sat- ellites.
ODU (OutDoor Unit):
The equipment installed outside, con- sisting of parabolic/offset dish and one or more LNBs for the reception from one or several satellites.
Parabolic Dish:
Parabolically shaped dish of metal or covered with plastic for collimation of the electromagnetic waves radiated from the satellite, in a focal point..
Polarisation level:
For optimum utilisation of the frequency ranges available, satellites transmit ad- jacent programs with opposite polarisa- tion (horizontal and vertical or turning to the left or to the right). For the reception of both polarisation levels two single LNBs or one
Receiver: see satellite receiver
Satellite:
Name of the satellite, usually with name and position in the orbit,
ASTRA 19° East
EUTELSAT 13° East
Satellite receiver:
The signals received and converted by the LNB cannot be processed by the tv. In the satellite receiver they are proc- essed in such a way that at its outputs there are audio and video signals (AV) which are transmitted to the tv.
SCART:
Connector at
Transponder:
Processes one or several programs at the satellite, viz. reception of data from the earth station, amplification and re- radiation to the earth.
Universal LNB:
Designation for a
Low Band: 10,70 - 11,80 GHz; LOF 9750 MHz
High Band: 11,70 - 12,75 GHz; LOF 10600 MHz
Power Supply:
LNBs are supplied with power through the coaxial cable, the receiver delivering a voltage of 14 or 18 Volt.
Viacces
Digital coding system.
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