Zhejiang, China
Business Type:
Number of Employees:
Year of Establishment:
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OEM/ODM Service

Qam Modulator, Modulator, Cable Tv Modulator manufacturer / supplier in China, offering DVB-T modulator(WDQ-3300), Wall Box, Waterproof Optical Fiber Closure and so on.

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DVB-T modulator(WDQ-3300)

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Min. Order: 1 Piece
Production Capacity: 100PCS/Month
Transport Package: Neutral or According to Customer′s Request
Payment Terms: T/T
TS packet format: 188 or 204
MER: ≥40 dB
BER: :≥9x10E-9
Height: 42mm(About 1U)
Width: 434mm(About 17")
Depth: 400mm

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Basic Info

Model NO.: WDQ-3300
Trademark: Prevail/Fobetmoc
Specification: DVB-T
Origin: China
HS Code: 85437092

Product Description

WDQ-3300 DVB-T according to DVB-T standard output the RF signals, which can be transmitted through HFC and MMDS networks. It is widely used in digital TV, data broadcasting, VOD, Internet, video conference systems. The WDQ-3300 has very convenient management interface, the user can complete all operation via local keyboard and LCD display on device, or access through the Ethernet port on device.

Compliant to EN300744 standard
Support 6MHz/7MHz/8MHz band width
Error correction follows DVB-T standard
Operable in QPSK, 16QAM, 64QAM mode
Support 2K/8K carrier-wave operating mode
Input interface: ASI and SPI(DS3/E3 optional)
Input bit rate:1.5~31.67Mbps
Output band width:6/7/8MHz
188 and 204 packet automatic identification, shows real-time data format
Advance output TS efficiency
Capable of NIT mapping and sending; supports over 44 NIT mapping frequency
Holds 8 groups of PID filtering and re-mapping function
Support all PSI/SI data abstraction, modification and analysis
Null packet filtering and filling
Performs multiple PCR correction simultaneously
Monitor and test real-time enter/valid bit rate
Self-adjust filter circuit design in order guarantees superb SNR (out of band)
-20dB RF test output is available (IF output is options)
Failure alarming and power off memory
Local keyboard control and LCD display, or access via Ethernet link

DVB-T modulation

MPEG-2(ISO/IEO ISO 13818&ISO11172-31)
EN300 744(DVB-T) standard
Parameter Symbol Description Unit Remark
Mechanical dimension
Height H 42 mm About 1U
Width W 434 mm About 17"
Depth D 340 mm  
ASI Input (with loopout )
Number of ASI input - 1    
Impedance - 75 W  
Connector - BNC NA  
Maximum bit rate - 108 Mbps  
TS packet format - 188 or 204 Byte Automatic detection
Transmission format - Data packet or data burst NA  
SPI Input
Number of SPI input - 1 NA  
Connector - DB-25 female NA  
Packet format - 188 or 204 Byte without channel coding
Maximum bit rate - 108 Mbps LVDS mode
E3/DS3 Input(options, with loopout)
Number of E3/DS3 input - 1 NA G.703 standard
Impedance - 75 W  
Connector - BNC NA  
TS packet format - 188 or 204 Byte  
Data bit rate - E3/DS3(34.368/44.736) Mbps  
10MHz Clock Reference
Internal Stability - 0.1 ppm  
External Impedance - 50 W  
External Connector - BNC NA  
External Input level   55~70 dBuV  
RF Output(with –20dB test output)
Impedance - 75 W  
Connector - BNC NA  
Frequency - 48~860 MHz  
Output level - 100~115.5 dBuV Step:0.5 dBuV
Modulation Specification
Modulation scheme - QPSK,16,64QAM    
FEC - 1/2,2/3,3/4,5/6,7/8    
Guard Interval - 1/4,1/8,1/16,1/32    
RS encode - 204byte mode    
IFFT - 2K/8K    
Modulation Error Rate MER ≥40 dB  
Signal to noise ratio SNR ≥50 dB  
Bit Error Rate BER ≥9x10E-9    

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