Transmodulation
Transmodulation describes the conversion from one type of modulation to another.
Transmodulation is necessary if a signal has to be converted beforehand for technical or economic reasons due to the transmission path or the reception technology. Frequently the frequency range is also changed.
A well-known example of a transmodulation is a cable headend which converts the satellite reception signal into a cable TV signal. This often involves a standard conversion from DVB-S to DVB-C or PAL as well as conversion to the VHF or UHF television channel range.
literature
- Ulrich Reimers: Digital television technology. Data compression and transmission for DVB, 2nd edition, Springer Verlag, Berlin / Heidelberg 1997, ISBN 978-3-662-06737-6 .