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ASI / RF Input Digital TV Encoder MPEG-4 MPEG-2 Transcoder For DTV System
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ASI / RF Input Digital TV Encoder MPEG-4 MPEG-2 Transcoder For DTV System

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8 In 1 MPEG-2/MPEG-4 To MPEG-4/MPEG-2 Transcoder
8 In 1 MPEG-2 To MPEG-4 Transcoder With ASI/RF Input
 

 

1: Support Mpeg-2 to Mpeg-4 conversion

2: Support ASI or RF input

 

 

Product Overview

 

 

    GOSPELL GN-1738 transcoder is highly competitive SD video conversion unit with best-in-class video quality. It can convert up to eight channels of MPEG-2 (or MPEG-4 AVC) SD live video streams to MPEG-4 AVC (or MPEG-2) video formats.

 

    The GN-1738 provides a wide range of real-time transport streams input options, from satellite, DVB-ASI and TS-over-IP inputs. This allows it handle any real-time video source, and 1+1 redundant transcoding outputs via both IP and DVB-ASI are also introduced, enabling a highly reliable video service to be delivered. In addition, the GN-1738 supports Web and SNMP-based management for conveniently local and remote management as well as maintenance.

 

    With the number of video formats increasing fast, DTV operators require the ability to have a transcoding solution to simplify their headend architecture and to reduce the amount of headend equipment needed. To achieve this, they need products able to deal with both MPEG-2 and MPEG-4 AVC video streams from different sources.

 

 

Main Features

  • MPEG-2 to MPEG-4 AVC, MPEG-4 AVC to MPEG-2
  • Up to eight channels of SD video conversion
  • Supports MPEG-1 Layer II/AAC/HE-AAC v1&v2 audio streams pass-through
  • Adopts advanced transcoding core
  • High video quality but in ultra low bit rate
  • Multiple video sources acquisition: 4 x DVB-S/S2 RF inputs or 4 x DVB-ASI and IP inputs
  • Support VBR/CBR video encoding
  • MPEG TS-over-IP(7 x 188 Byte) output, supporting MPTS/SPTS
  • Dual TS-over-UDP outputs, supporting 1+1 redundant configuration
  • Dual DVB-ASI outputs, supporting 1+1 redundant configuration
  • Front panel control and LCD display
  • SNMP-based management for remote monitoring and control
  • Web-based network management for local and remote management and software upgrade

 

Technical Specifications

 

RF Input Option
Numbers of Input

4 x RF Input,

4 x RF Loop Out
Operation Mode Independent input
Connector Type F-Type (Female, 75Ω)
Frequency Range 950MHz to 2150MHz
Standards

DVB-S: EN 300 421

DVB-S2: EN 302 307
Constellations

DVB-S: QPSK

DVB-S2: QPSK/8PSK
Symbol Rate

QPSK: 2.0Msym/s to 45Msym/s

8PSK: 10 Msym/s to 31Msym/s
Input Signal Level -65dBm to -25dBm
LNB Power Output

0V/+DC 13V/18V

LNB short circuit protection
TS Input Option
DVB-ASI Input
Numbers of ASI Input 4 x ASI
Operation Mode Independent input
Connector BNC female, 75W
Standards DVB-ASI
TS Packet Length 188 or 204 Bytes
MPEG TS-over-IP Input
Number of IP Output 1 x 10/100 Base-T Ethernet
TS Format 7 x 188Byte
IP Encapsulation MPEG TS-over-UDP/IP
MPEG TS MPTS, SPTS
Addressing Unicast or Multicast
Connector RJ-45
ASI Transcoding Output
Number of ASI Outputs 2 x ASI
Operation Mode 1+1 Redundant output
Connector 4 x BNC*, 75W
TS Packet Length 188 Bytes
TS Output Bit Rate 2 to 60Mbps
Notes: Only two BNC connectors are available for ASI outputs, the rest two are not available.
MPEG TS Over IP Transcoding Output
Qty of IP Output 2 x 10/100 Base-T Ethernet
Operation Mode 1+1 Redundant output
TS Output Bit Rate 2 to 60Mbps
TS Format 7 x 188Byte
IP Encapsulation MPEG TS-over-UDP/IP
TS Mode MPTS, SPTS
Number of TS Output 8 TS
Addressing Unicast or Multicast
Connector RJ-45
Transcoding
Transcoding Processing

Video: Decoding and encoding

Audio: Pass-through
Video Transcoding Mode

MPEG-2 SD to MPEG-4 AVC SD

MPEG-4 AVC SD to MPEG-2 SD
Audio Pass-Through Mode One or two MPEG-1 Layer II/AAC/HE-AAC v1&v2 audio stream(s) per video service
Transcoding Capability
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Mr. Horace
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Gospell digital technology co.,ltd
Block F10-F13, F518 Idea Land, Baoyuan road, Guangzhou, Guangdong, China (Mainland)
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