digital headend, buy agile CATV DTV headend, digital qam modulator on China Suppliers Mobile

Product Details

Specifications

CATV DTV digital qam modulator, ip qam
1.DVB-C Standard
2.16QAM, 32QAM, 64QAM, 128QAM, 256QAM.
3.rf modulator, video modulato

agile CATV DTV modulators, QAM modulator, digital qam modulator

Features

1. Complying DVB standard signal channel coding.

2.Support full range variable data rate, bandwidth and QAM mode Data stuffing

3. super buffer (optional),anti-burst code stream

4. PID filter, re-reflection, PSI,SI information synchronal updating possible.

5. Automatically code stream stuffing and empty pocket deleting.

6. Code stream real-time monitoring, empty pocket filtering

7. Support NIT table modifying

8. real-time code stream monitoring

9. PCR adjusting, output symbol rate variable:1-7Ms/s

10. Fixed or agile channel output

11. Providing ASI and Ds3 input port ad output port (optional)

12. Providing RF output monitoring port(-20dB)

13. Local or Remote administration possible.

14. LCD display, flexible in operating

15. High reliability design, stable in running

Specifications

Specifications

Data interface
ASI interface (Asynchronous Serial interface)
*Input*
Connector Impedance Packet format Access data rate Max valid bit rate DVB standard	BNC 75Ω 188/204 bits 270Mbps 51.6Mbps
*Loop* *output*
Connector Impedance	BNC 75Ω
SPI input interface(Synchronous Parallel interface)
Connector Packet format DVB Standard	DB-25 female 188 or 204 bits LVDS
IF interface
*IF input*
Connector Impedance IF frequency	BNC 50Ω 35.25/36/36.15/44 MHz (optional)
IF Bandwidth≤8MHz Reflect loss ≥18dB
Input level	100dBuV (rms)
IF loop output
Connector	BNC
Impedance IF frequency IF Bandwidth≤8MHz Reflect loss ≥18dB Output level	50Ω 35.25/36/36.15/44 MHz (optional) 100±2dBuV(rms)
RF interface
*RF output*
Connector Impedance Output Frequency	BNC 75Ω 48~800MHz
Reflect loss ≥15dB Output level 105~115dBuV (adjustable)
Carrier rejection SNR(out of band)	> 55dB ≥50dB
*RF output for test*
Connector Impedance Output level	BNC 75Ω 85dBuV~105dBuV (adjustable)
Channel signal encoding
Constellation Channel encoding MER SNR(out of band)	16QAM, 32QAM, 64QAM, 128QAM, 256QAM. RS encode, DVB standard ≥42dB ≥50dB
Network management interface
IEEE802.3 ETHERNET, RJ45 interface
Software protocol	SNMP protocol
Power supply
Voltage Frequency Power consumption	165V~265VAC or 85V~265VAC 50Hz±2% 50W
Operation environment
Operation temperature+5~45°C;
Storage temperature Relative humidity	-25~+55°C. 10~75%
Radiation and safety
Up to GB13837-92 and GB8898-88
E3 /DS3 Interface (optional)
Input (G.703 standard)
Connector Impedance	BNC 75Ω
Packet format 188/204 bits
Bit rate	E3/DS3 No-frame format (34.368Mbps/44.736Mbps)
*Output (loop)*
Connector Impedance	BNC 75Ω