9362576b, Operating Manual Twin-DVR Sat Receiver ... - Kathrein
9362576b, Operating Manual Twin-DVR Sat Receiver ... - Kathrein
9362576b, Operating Manual Twin-DVR Sat Receiver ... - Kathrein
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Short Technical Guide<br />
94<br />
Programme package<br />
PIP<br />
Symbol rate<br />
Transponder<br />
Video bit rate<br />
Viterbi rate<br />
PCR PID is the identification number for the synchronisation signal.<br />
The PCR PID is normally identical to the video PID. For programmes<br />
broadcast in multiple languages, the audio PID can be entered<br />
manually to assign a different language to the TV programme. After<br />
the PID is entered, the digital receiver automatically selects the audio<br />
data identified by the PID number from the data stream and assigns it<br />
to the video signal.<br />
The programme package for a digital transponder normally includes<br />
several TV and radio programmes. Each programme package has a<br />
fixed assignment for the transponder transmission frequency, for<br />
polarisation (horizontal or vertical), for the symbol rate and for the<br />
Viterbi rate or error rate.<br />
Picture In Picture function<br />
The symbol rate describes the quantity of data that is transmitted per<br />
second. The symbol rate is measured in MSymbols/s and is equal to<br />
the number of symbols received per second.<br />
A transponder is a satellite channel which transmits TV and radio<br />
signals. A satellite has several transponders.<br />
Analogue transponders transmit only one TV programme and possibly<br />
multiple radio programmes on the transmission frequency.<br />
Digital transponders simultaneously transmit several TV and several<br />
radio programmes at a transmission frequency. If a programme<br />
provider is broadcasting several TV programmes via a digital<br />
transponder, we refer to the provider's programme package. The<br />
terms “digital transponder” and “programme package” have the same<br />
meaning.<br />
The video bit rate describes the quantity of data from the digitised<br />
video signal that is transmitted per second.<br />
The Viterbi rate (code rate, error rate) characterises the error<br />
protection used by the programme provider. The DVB standard<br />
provides the following values: 1/2 - 2/3 - 3/4 - 5/6 - 7/8