DVB QPSK to QAM modulator This product is professional QPSK processor. It is fully compliant with DVB/ MPEG-2 standards. DTS522 is a high performance and cost-effective DVB-S professional receiver, it is designed and engineered for cable and satellite operators, the receiver features field-proven reliability, the embedded common interface provides great support for a wide variety of CA system. Features: MPEG-2 digital & Fully DVB Compliant Support QPSK demodulation Two ways MPEG-2 transport stream output QPSK modulation frequency: 950 - 2150 MHz, symbol rate 2 45 Ms/s With two common interface slot Multi-channel encrypted programs by the specific CAM Transport stream output 188 bytes Friendly user interface Audio and Video output are for monitor use only 1 LNB input and 1 LNB loop through LNB voltage is turned off automatically to protect the overloaded of LNB Transmit SCPC & MCPC Software download via RS232 Upgrade the newest program parameters list. Remote installation, and are equipped with remote control locks.