Kathrein UFD 515 manual Glossary, Transponder

Short technical lexicon

Transponder

A transponder is a satellite transmitter which transmits TV and radio signals. A satellite has several transponders.

Analogue transponders transmit only one TV channel and possibly several radio channels on their transmit frequencies.

Digital transponders simultaneously transmit several TV and several radio channels on their transmit frequencies. When a channel provider broadcasts several TV channels via a digital transponder, this is referred to as the channel package of the channel provider. The terms "digital transponder" and "channel package," therefore have the same meaning.

Video bit rate

The video bit rate describes the quantity of data of the digitised video signal that is transmitted per second.

Viterbirate

The viterbirate (code rate, error rate) characterises the type of error protection used by the channel provider. The DVB standard stipulates the following values: 1/2 -2/ 3 - 3/4 - 4/5 - 5/6 6/7 - 7/8.

Glossary

Audio output	Receiver sound output
AV channel slot	Preferential channel location of TV set for SCART input
Decoder	Decoder Unscrambling unit for pay-TV
DiSEqC	Control system between receiver and LNB, multi-switch
DVB	Digital Video Broadcasting
Eb/No [dB]	Power density per unit of information
Eb/No ratio	Digital signal-to-noise ratio
LED-Display	Receiver display
LNB	Low Noise Block Converter
Mute	Mute switch
OSD	On-screen display
PAL	Analogue television standard
Pay-TV	Pay-TV (e.g. DF1, Premiere)
PCMCIA	Standard of internal decoder interface for pay-TV
PIN	Personal identification number
Receiver	Receiver
RGB	Video signals made up of 3 individual colour signals (red, green,
	blue)
Satellite-IF signal	Receiver input signal
SCART cable	21-pin connecting cable
Standby	Standby
S-VHS	Super Video Home System (Video recorder-Standard)
Symbol rate	Transmitted data rate of satellite signal
Timer function	Clock function for pre-programmed switch-on and switch-off times
Transponder	See glossary
VCR connection	Video recorder connection
Viterbirate	See glossary

76