QPSK digital TV modulator

QPSK digital TV modulator complies DVB-S channel coding and modulate standard. TV signal is compressed and coded by MPEG-2 and then multiples with other data, then into QPSK modulator, QPSK channel code is standardization according to DVB-S. Then the data is output to L wave band after modulated by QPSK. It can be widely used on microwave P2P transmitting, satellite digital TV, data broadcast, FM microwave, internet, TV meeting and so on.

Characters

1: Modulating Mode: QPSK

2: Input Port: ASI, BNC-75Ω

3: Input data bit range: 0~62Mb/s

4: Output data for symbol Rate range: 10Mbaud/s~45 Mbaud/s(FEC≤3/4

5: RF Output (BW) range: ≤56MHz

6: MER: -60dBm~-8dBm

7: RF output frequency range: 450MHz~900MHz or 950MHz~2150MHz

8: Input code rate display

9: State display

10: LCD display in English

11: With network interface and WEB management

12: Memory function

Technical Parameter

Data interface

1: ASI interface

2: Plug: BNC

3: Impedance: 75Ω

4: Format: 188 or 204 db

5: Standard: En50083-9 standard

RF output

1: Connector: N mould

2: Impedance: 50Ω

3: Central frequency: 450MHz~900MHz or 950~2150MHz

4: Bandwidth: ≤56MHz

5: Output MER: -60dBm~-8dBm

Signal Channel Coding

1: Modulating Mode : QPSK

2: FEC coding: 1/2,2/3,3/4,5/6,7/8

3: RS coding: 204,188,T=8

4: ymbol rate: 0.1MSps~45MSps

5: Channel coding standardIn accord with DVB-S standard

6: SNRout of band: ≥45dB

System Control And Error Alarm

1: Input stream unlocked alarm

2: Data overflow alarm

General characteristic

1: Power: 220V AC±20%,50Hz,30W

2: Work Temperature: 5~45

3: Storage temperature: -20~60