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Member Since
2008
Chengdu Jiexun Electronics Co., Ltd.
QPSK Modulator
QPSK digital TV modulator adopts advanced digital signal processing technology, of which receiving port can directly use digital satellite receiver for receiving, thus fully complying DVB-S standard. Not only can it gain relatively high frequency spectrum usage ratio, having very strong anti-interference and relatively high price performance ratio, but also it can well comply with analogue FM microwave equipment.
QPSK digital TV modulator adopts various processing method, such as random energy spread processing, RS coding, convolution interweave, contracting convolution coding, and pre-modulating baseband shaping processing, etc. all these contribute a high guarantee to the data transmitting performance. It’s a high performance QPSK modulator for transmitting digital TV and other digital signal.
Features
l Complying DVB-SETS300-421 QPSK modulating standard
l IF output frequency range 950MHz~2150MHz
l Build-in frequency synthesizer, support uplink frequency conversion in U band or L band
l Ports complying ASI, SPI standard
l Achieving MMDS effect with FM microwave
Specification
Modulate mode
QPSK
Input port
ASI standard port
Output port
75Ω F head
RF output range
950~2150MHz
Output level
≥-8dBm
Output level adjustable range
0~20dB（0.5 dB stepping）
Symbol rate
0-45MBauds
MER
≥14dB
BER
≤1X10-8
FEC
1/2, 2/3, 3/4, 5/6, 7/8 (optional)
Miscellaneous
Dimension
44mm× 482mm× 410mm
Temperature
0~45℃（work）; -20~80℃（storage）
Power
220VAC±10%, 50Hz, 25W
Installation hole distance
460mm
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