QPSK Modulator, DTV headend IPTV Equipment DVB-S QPSK Modulator
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COL5500 QPSK modulator
Outline
The COL5500 QPSK modulator is a high performance modulator developed according to DVB-S (ETS300-4221) QPSK standard. It has powerful spectral efficiency, advanced anti-jamming and competitive price-performance ratio. Apart from these, this modulator also has access to FM microwave device. Moreover, to guarantee the high transmission performance, this QPSK modulator adopts the disposal of energy diffusing, RS coding, convolution interlacing and pre-modulated baseband shaping. To sum up, all the approaches make this QPSK modulator can be widely used in Broadcasting, Interactive Services, News Gathering and other Broadband satellite applications.
Features
üFully complying with DVB-S (ETS300-421) QPSK standard
üOutput frequency range: 250-450 450-950 950~2150MHz
üASI standard Input connector
üSupporting local and remote control
üOutput level attenuation
üHigh stability and powerful anti-jamming performance
üFull-size front panel LCD display and keyboard
Specifications
Modulation | QPSK |
Input | ASI Standard connector |
Output | 50Ω F Type |
RF Range | 250-450 450-950 950~2150MHz |
Symbol Rate | 1.5M~45Mps |
Roll-off factor | Option 0.35,0.25,0.20 |
Convolution | Option 1/2,2/3,3/4,5/6,7/8 |
Output level range | 0~20dB in 1dB step |
Environment | 0 ~ 45°C(operation);-20 ~ 80°C(storage) |
Power Supply | ~220V(~180V-~250V) 50Hz~60Hz 20VA |
Dimension | 45mm´482mm´430mm |