An appropriative head-end device for digital CATV systems, it receives
the TS stream from an MPEG-II video server or multiplexer, applying code
correction and QAM modulation, export RF signal for CATV network adjacent
frequency transmitting with analog TV signal and QAM signal.

Features:
1) TS input switch, code rate adjustment
2) 188 to 204 RS PRE error correction code
3) Complete 8-bit encryption of anti-emergency disturbed
4) Complete 1/2, 2/3, 3/4, 5/6, 7/8 convolution encryption
5) Complete 16, 32, 64, 128, 256 QAM encryption