QAM modulator l        In accordance with DVB-C standard channel codingl        Support whole range of variable signal rate and QAM star levell        Support PID filtering/re-mappingl        Support PSI/SI information synchronization updatel        Support NIT editingl        Automatically code stream filling and intelligent empty pack deletedl        With the function of PCR high-precision correctionl        Code rate input form including ASI/DS3 (optional)l        RF are fixable or frequency agility outputl        Supply with DVB ASI/SPI input interface and ASI looping out interfacel        Front panel LCD shows key control parameter and controls operation, with Chinese and English menu selectionl        LED state display and warning indicatorl        Support 10M/100M Ethernet control interface, and upgrade on line through networkl        Local/long-distance control and central management are available through network management systeml        19” 1 U rack QAM modulation16/32/64/128/256 (optional)Symbol rate1~7 Mbaud/sInput data speed1.5~51MbpsChannel data speed20~56MbpsOutput bandwidth8MHzOutput resistance75ΩOutput reflection lossless than 14dbRF output frequency48~860MHz  fixed/frequency agilityOutput frequency stepping0.1MHzOutput frequency errorless than 15 khzRF output levelmore than 108dBμVRF output monitor-30 dBμVRF output level adjustment0~16dB(0.5dB stepping)Medium-frequency output frequency35.25/36.15/36.65/44/70MHz (optional)Medium-frequency output levelmore than 80 dBμVModulating BERmore than 35dB(RF output testing)SNRmore than 48dBPCR ditheringless than 100nsParasitism output rejectionmore than 55dBPhase noiseless than -65dB@1KHzless than -85dB@1KHzless than -105dB@1KHzPower supply parameterAC 220V. 50Hz. 30W