DTV System MPEG-2 QAM Modulator 8 ASI With Multiplexing Scrambling

Delivery Time:Within 7 days

GQ-3650DS
 
Multifunction QAM Modulator
 
     GOSPELL GQ-3650DS can receive MPEG-2 transport streams from 8 ASI inputs and 2 E3/DS3 inputs (optional for GQ-3650E), and then multiplexing, scrambling and processing it with channel coding, finally output 4 channels of adjacent RF signals after QAM modulation, GQ-3650DS/GQ-3650E is our economical core product of digital cable TV head end solutions. Users can get these functions upon their system needs and budgets by purchasing the update package from the suppliers.
 
 
Main Features:

Support 8 ASI inputs, support CBR and VBRSupport ITU-T J.83A/B/C, output frequency range: 30 MHz ~ 860 MHzExpandable up to four RF modulating output (GQ-3650DS optional)Support two E3/DS3 inputs and two ES/DS3 loop outputs (GQ-3650E optional)Support PID filtering, pass-through, PCR auto-correction4 adjacent frequency output with output-channel selection switch88/204 self-adaptive packet length with real-time input data format displayExtremly large buffer design, support both burst & uniform input streams, and also support re-uniforming of the input data, in order to improve the output efficiencyModulated transport streams can be either directly passed through, multiplexed or scrambledNIT mapping & forwarding up to 45 frequencies8 groups of PID filtering and re-mappingSupport various customizable PSI/SI table extraction, resolving and modificationSupport SI table information replacement and insertionSelf-adaptive filter circuit design ensures outstanding out-of-band rejectionCentralized Web, SNMP(GQ-3650DS) management and remote upgrade / maintenanceSupport monitoring of operation temperature and power supply status

Input
ASI Input	8 x BNC
E3/DS3 Interface (GQ-3650E Optional)	2 x BNC for E3/DS3 input 2 x BNC for E3/DS3 loop out
Bit Rate	ASI input : 1.5~214Mbps each, maximum 400Mbps in total E3/DS3 input: 34.4Mbps/44.7Mbps
Modulation Output
RF Output	2 x BNC (1 x BNC for -20dB test output port)
Expandable RF output (GQ-3650DS optional)	4 x RF output
Number of Output	4 carriers with maximum 32 of TS program output
Symbol Rate	4.2~7Mbaud/s
Output Bandwidth	4.83~8.05 MHz
RF Frequency	30~860 MHz
Output EPL	95 dBuV~110 dBuV
Gain Fine-tune	-2.5~10.5dB, Step Size 0.25dB
Channel Coding	Comply with ITU-T J.83 Annex A/B/C
Constellation	16/32/64/128/256QAM (Annex A) 64/256QAM(Annex B)
Multiplexing and Scrambling
Multiplexing	Auto-generation/manual insertion of PSI/SI table
Support intelligent program search
Scrambling	Support scrambling at program-level
Up to 52 Mbps TS scrambling rate each channel
Up to 4 simul-crypt CAS
EMM Bandwidth	Up to 3 Mbps
Scrambling Capability	Maximum 128
Network Management
Connector	1 x RJ-45
Interface	10/100M Base-T Ethernet
Network Management Protocol	GQ-3650E: HTTP (Web) GQ-3650DS: HTTP/SNMP
Power Supply
Input Voltage	85~260VAC, 50/60Hz
Typical Consumption	<20W
Environmental
Operating Temperature	5℃~45℃
Storage Temperature	-25℃~85℃
Operating Humidity	10%~ 90%
Mechanical
Dimension (W x H x D)	483mm x 44mm x 300mm
Weight	<5Kg

 
For More Information
 
Please visit our website: or contact your local sales representative:
 

GOSPELL Shenzhen, China Overseas Sales Center Block F10-F13, F518 Idea Land, Baoyuan road, Bao\'an Central District, Shenzhen City 518102, Guangdong