Specifications

QPSK Modulator, digital tv headend
1.DVB-S Standard for error correction encoding
2.SI information replacement and insert

 

                            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