Conversion from Digital Terrestrial to Digital Cable (COFDM – QAM)
These cassettes transmodulate two different COFDM modulated data streams into two QAM modulated data streams. The output level can be set with an analogue antenna measuring instrument. The TP module serves for data processing of the demodulated transport stream. This allows service information to be changed (NIT – Network Information Table) data rates increased (Stuffing) and individual programs to be deleted from the transport stream, wherby the remaining channels can then be transmitted with bandwidth optimization. Moreover, the Operator ID (e.g. required for VisAvision) can be set.
Multiplexing from Digital Terrestrial to Digital Cable (COFDM – QAM)
Two COFDM modulated free to air terrestrial signals can be converted in parallel and a new individual transport stream can be generated out of it with these multiplex cassettes.