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AAC Supported IP Video Encoder QAM Transmodulator For DTV Encoding / Modulating

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AAC Supported IP Video Encoder QAM Transmodulator For DTV Encoding / Modulating

China AAC Supported IP Video Encoder QAM Transmodulator For DTV Encoding / Modulating supplier
AAC Supported IP Video Encoder QAM Transmodulator For DTV Encoding / Modulating supplier AAC Supported IP Video Encoder QAM Transmodulator For DTV Encoding / Modulating supplier AAC Supported IP Video Encoder QAM Transmodulator For DTV Encoding / Modulating supplier

Large Image :  AAC Supported IP Video Encoder QAM Transmodulator For DTV Encoding / Modulating

Product Details:

Place of Origin: China
Brand Name: GOSPELL
Certification: ISO9001,FCC,CE
Model Number: GN-8318

Payment & Shipping Terms:

Minimum Order Quantity: 1
Packaging Details: 8KG/PCS
Delivery Time: Within 7 days
Payment Terms: TT/LC
Supply Ability: 100pcs/Month
Detailed Product Description
High Light:

hd video encoder


h.264 video encoder

All-In-One MPEG-2 SD Encoder-QAM Transmodulator

Model No: GN-8318Q

1: Support encoding and modulating 

2: AV input and Output with IP / ASI after modution

3: Support AAC 



Product Overview



GM-8318Q is a new generation, highly integrated SD encoder and QAM transmodulator, combining MPEG-2 SD encoding, QAM RF reception, transport stream processing and QAM modulation in a 1RU chassis. It’s ideal for broadcasters, cable network operators and media providers looking to reduce equipment costs and lower total power consumption for digital television distribution


The GM-8318Q features versatile functions, high density and superior performance, provides up to eight channels of MPEG-2 standard definition(SD) encoding, QAM RF demodulation, ASI-based transport stream input, transport stream multiplexing/re-multiplexing/pass-through, PSI/SI processing, two QAM modulation outputs. All of these feeds incoming from local analog PAL/NTSC video & audio media sources, local ASI transport streams and remote QAM RF signals which can be processed into two transport streams and finally distributed to cable network after QAM modulation.


To make this as comprehensive as possible, Web browser and SNMP management are also available for local and remote monitoring and control, this can significantly reduce management time and save operating expense.


Main Features


Encoding Features:

· Up to eight channels of MPEG-2 SD video and MPEG-1 Layer II audio encoding

· High picture quality in ultra low bit rate to reduce network overheads or costs

· Supports encoding rate range from 1Mbps to 7Mbps

· Output resolutions: 480i (NTSC), 576i (PAL)

· Supports VBR/CBR video encoding

Transport Stream Processing Features:

· DVB-ASI transport stream inputs

· Transport stream multiplexing, remultiplexing and pass through

· Supports PID filtering, pass-through, PCR auto-correction

· PAT, PMT and SDT insertion

Modulation/Demodulation Features:

· Two QAM adjacent-channel outputs

· Wide range of modulation output bitrate from 15.5Mbps to 51.6Mbps per QAM channel

· Supported QAM constellation: 16/32/64/128/256QAM

· ITU-T J.83 Annex A/B/C compliant, 6MHz or 8MHz bandwidth

· Self-adaptive filter circuit design ensures outstanding out-of-band rejection

Other Features:

· Web browser and SNMP management for local and remote management and control;

· Front panel control and LCD display for parameter settings and malfunction alarm display

· Local and remote firmware upgrades

· Low power consumption




Technical Specifications

Video/Audio Encoding Input
Analog Video/Audio Input Options
Composite Video 4 or 8 x CVBS
BNC female, 75Ω
Unbalanced Audio 4 or 8 x Stereo pairs (R&L)
BNC female, 600Ω
Stereo or Mono mode
Video Encoding  
Encoding Formats MPEG-2, MP@ML
Resolution & Frame Rate

720/544/480/352 x 576i@25fps

352 x 288@25fps

720/544/480/352 x 480i@29.97fps

352 x 240@29.97fps

Aspect Ratio 4:3
Video Control Brightness, Contrast, Chrominance and Hue
Encoding Rate Mode CBR, VBR
Video Encoding Rate 1-7Mbps per program
Audio Encoding  
Encoding Standards MPEG-1 Layer II
Operation Mode Stereo or Mono
Volume Control Range -63dB to 20dB
Supported Sample Rate 32 kHz, 44.1 kHz, 48 kHz
Audio Encoding Rate 64/128/192/256/384 kbps
RF Input
Number of Inputs 1 x RF Input, 1 x RF Loop Out
Connector Type F-Type (Female, 75Ω)
Standards DVB-C (EN300429)
Constellations 16/32/64/128/256 QAM
Frequency Range 50-860MHz
Input Signal Level -20 to +20dBm (64QAM)
ASI Transport Stream Input
Qty of ASI Input 1 x ASI, 1 x ASI Loop Out
Connector BNC female, 75W
TS Packet Length 188 or 204 Bytes
TS Output Bit Rate 2-60Mbps
Burst TS Not support
Transport Stream Processing
Functions Multiplexing, Re-multiplexing, Pass through
Capacity of Processing Two transport streams, up to 24 programs
PCR Auto correction
PSI/SI PSI/SI auto generation, manual insertion
PID Remapping and filtering and pass through
PSI/SI Standards ISO/IEC 13818-1, DVB SI(ESI EN300468)
Real-time Statistics TS rate, program rate, PID rate
QAM Modulation Output
Output Connector

1 x RF Output

1 x -20dB RF Output (Test Port)

Connector Type F-Type (Female, 75W)
RF Frequency Range 48-870 MHz
Bandwidth 6 or 8MHz
Numbers of Output Two QAM adjacent-channels
Output Bitrate Range 15.5Mbps to 51.6Mbps per QAM channel
Modulation Standards ITU-T J.83 Annex A, B and C

Annex A: 16/32/64/128/256 QAM

Annex B: 64/256QAM

Annex C: 32/64/128/256 QAM

Symbol Rate

Annex A: 4.2-7 Mbaud

Annex B: 5.057 Mbaud

Annex C: 4.2-5.3 Mbaud

RF Output Power Level

90-110dBμV (RF output Port)

70-90dBμV (-20dB test port)

MER ≥38dB (64QAM, 6.875MBaud)
SNR(Out of band) ≥50dB
Return Loss ≥12dB
Gain Fine-tune 0-10dB, Step Size 0.25dB
Network Management
Interface 1 x 10/100 Base-T Ethernet
Connector RJ-45
Management Web browser and SNMP management
Front Panel 3.5’’ LCD with 6 x Control Button for 2-lines alphanumeric display and parameter settings
3 x Dual color LED, for status indications of power, running and Alarm
Rear Panel 1 x Power Receptacle(AC Input)
1 x Power switch
1 x Serial Console Port(via RJ-45 connector)
Power Supply
Input Voltage 90-250 VAC, 50/60Hz
Power Consumption 50W (Typ.)
Operating Temperature 0℃ to 45℃(32℉ to 113℉)
Storage Temperature -20 to 80℃(-4℉ to 176℉)
Operating Humidity 90%, non-condensing

Product Dimensions

(W x H x D)

483mm x 44.5mm x 400mm

19’’ x 1.73’’ (1U) x 15.8’’

Product Weight Approx. 5Kg (11 lbs)


Rear Panel View :


AAC Supported IP Video Encoder QAM Transmodulator For DTV Encoding / Modulating 0

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 Province, China

TEL: +86-755-26716172

FAX: +86-755-29114035


GOSPELL India (Office)

Office No.C-503, 5th Floor, L.B.S. Road, Bhandup (West), Mumbai-400078

TEL: +02265685890


GOSPELL Mexico (Office)

Avenida Patria NO3489.EL Tapatio Tlaquepaque Jal.Mexico C.P.45588

TEL: +52 (33) 3860-7059



GOSPELL Brazil (Joint Office)

Rua Engenheiro Prudente, 477/483, Sao Paulo, Brazil

TEL: +55 (11) 2274-1455


GOSPELL Paraguay (Joint Office)

Tte. Garay 1795 esq. Campo Vía Barrio San Vicente Asunción - Paraguay

TEL: +595 21 33 43 02



Contact Details
Gospell Digital Technology Co.,ltd

Contact Person: Collins

Tel: +8619938801931

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