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Help CenterQPSK Modulator for Digital TV.
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Specifications
1.QPSK modulating standard2.Ports complying ASI, SPI standard
3.Achieving MMDS effect with FM microwave
COL5500 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 analogue FM microwave equipment.
COL5500 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. In a word, its a high performance QPSK modulator fortransmitting digital TV and other digital signal.
Features
Complying DVB-SETS300-421 QPSK modulating standard
IF output frequency range 450MHZ~950MHZ or 950MHz~2150MHz
Build-in frequency synthesizer, support uplink frequency conversion in U bandor L band
Ports complying ASI, SPI standard
Achieving MMDS effect with FM microwave
Specification
Modulating Mode |
QPSK |
|
Input Port |
ASI |
DVB Standard |
SPI | ||
Output port |
Impedance |
75Ω |
Type |
F Head |
|
RF Output range |
250-750MHz,450Mhz-950Mhz 950-2150MHz |
|
Symbol Rate |
3~8MBauds /20-45 MBauds |
|
MER |
≥14dB |
|
BER |
≤1X10-8 |
|
Output level adjustment |
0-20dB(0.5dB stepping) |
|
FEC |
1/2,2/3,3/4,5/6,7/8(optional) |
|
Miscellaneous |
Dimension |
44mm´482mm´410mm |
Temperature |
0-45°C(Operating); -20-80°C(Storage) |
|
Power |
110-220VAC±10%,50Hz,60HZ,25W |
|
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