Digital QPSK Modulator ( DVB-S )
1.Comply with DVB standard
2.Supplied by different unit Output Frequency
3.1 year warranty
Digital QPSK Modulator ( DVB-S )
1.Comply with DVB standard
2.Supplied by different unit Output Frequency
3.1 year warranty
Technical specification
1.1 Data interface
1.1.1 ASI interface (Asynchronous Serial interface)
A:Input:
Connector:BNC
Impedance:75Ω
Packet format:188/204 bits
Access data rate:270Mbps
Max valid bit rate:60Mbps
DVB standard
B:Loop output
Connector:BNC
Impedance:75Ω.
1.1.2 SPI input interface (Synchronous Parallel interface)
Connector:DB-25 female
Packet format:188 or 204 bits
DVB Standard:LVDS
1.2 RF interface
A. RF output:
Connector:BNC
Impedance:75Ω
Output Frequency:250MHz~500MHz, 450MHz~950MHz,950MHz~1800MHz(Supplied by different unit)
Reflect loss ≥15dB
Output level:100~110dBuV (adjustable)
Carrier rejection:> 55dB
SNR(out of band):≥45dB
B: RF output for test
Connector:BNC
Impedance:75Ω
Output level:85dBuV~100dBuV (adjustable)
1.3 Channel signal encoding
Constellation:QPSK
Channel encoding:RS encode, DVB-S standard
MER:≥40dB
SNR(out of band:≥45dB
1.4 Network management interface
IEEE802.3 ETHERNET, RJ45 interface
Software protocol:SNMP protocol
1.5 Network management interface
IEEE802.3 ETHERNET, RJ45 interface
Software protocol:SNMP protocol
1.6 Power supply
Voltage:165~265VAC or 85V~265V AC
Frequency:50Hz±2%
Power consumption:50W
1.7 Operation environment
Operation temperature: +5~45°C;
Storage temperature: -25~+55°C.
Relative humidity:10~75%
1.8Radiation and safety
Up to GB13837-92 and GB8898-88
1.9 Mechanic characteristics
Dimension: 44.5mm(1U)*483mm*(19”)*400mm
Weight: 6kg
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