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8 VSB input/HD-SDI output Receiver/Decoder Card aG...

Sencore's aG4801 is a receiver decoder card with multiple channel, high-density, multi-format decoding capabilities. The 8VSB to ASI/SDI receiver decoder card enables providers to receive ATSC broadcast signals and output those signals via ASI and SD/HD-SDI.

This series of receiver decoder cards are used within the openGearTM chassis. With atlasGear and the open architecture of the openGearTM system, the multi-format decoding functionality of Sencore's award winning Modular Receiver Decoder (MRD) can be easily integrated with a wide range of solutions available from multiple companies each specializing in their own technologies.

 

Note: Model number has been changed from aG3801 or aG 3801 to aG4801 or aG 4801.

  • Multi-Format SD/HD MPEG2 & H.264 Decoder 
    Future proof off-air turn-around applications with multi-format support on one card 
  • Switchable SD/HD-SDI Outputs 
    Transition from SD to HD sources without changing hardware 
  • Manual or AFD Triggered Down-conversion 
    Fix the output format to the preferred center-cut, letterbox, or anamorphic modes. Or, switch formats on the fly with support for the Active Format Descriptor (AFD) 
  • Extensive Ancillary Data Support 
    Supports pass-through for extensive ancillary data including: 608/708 closed caption, XDS/V-CHIP, AMOL, and Gemstar 
  • ASI Output 
    Use the simultaneous ASI output to facilitate transport stream analysis or as an input directly to a multiplexer 
  • Remote Access 
    View multiple chassis and multiple cards simultaneously with the DashBoard™ application. Integrate monitoring and control into any network management system with the available SNMP MIB
  • Receive ATSC off-air signals and decode to SD/HD-SDI for re-encode or monitoring applications
  • Receive ATSC off-air signals and demodulate to ASI to feed a stat mux while providing an SD/HD-SDI output for monitoring
INPUT SPECIFICATIONS
Connector:
F-81 Type, panel mount, female
Impedance:
75 ohms


RF SPECIFICATIONS
Frequency Range:
50-850MHz
VHF/UHF (Ch2 – Ch69)
Sensitivity:
–25dBmV
Dynamic Range:
>40dBmV
Modulation:
8-VSB (ATSC A/53E, A/74)
MER: Range:
0 – 30dB
Low limit flag:
User defined
Input Level Flag: Range:
–20dBmV to +20dBmV


DECODER SPECIFICATIONS
Max TS Rate Supported:
160 Mbps


VIDEO PROCESSING
Number of supported services:
1
Supported Codecs:
MPEG2 ISO/IEC 13818-2
MPEG4 ISO/IEC 14496-10
Chroma/Profile/Level:
MPEG2 4:2:0, MP@HL / MP@ML
MPEG4 4:2:0, MP@4.1 & HP @4.0
Video Bit Rate:
MPEG2 1-81 Mbps
Supported Video Formats:
All ATSC formats (A53/E Part 4)
1080i@ 25Hz,
720p@ 50Hz,
576i@ 25Hz
Display Modes:
Letterbox, Center-cut, and
Anamorphic, or Active Format
Descriptor (AFD)
Output Aspect Ratio:
4x3


AUDIO PROCESSING
Number of simultaneous services:
3
Supported Codec:
AC-3 (decode and downmix)
MPEG1 Layers I and II
MPEG2 Layer II
MPEG2 AAC-LC ADTS
MPEG4 AAC-LC ADTS & LOAS
AC-3 Operational Mode:
Line Mode, RF Mode,
Custom 0, Custom 1
Dynamic Range Control:
Enable / Disable
Downmix (selectable):
Lo/Ro (Stereo), Lt/Rt (Surround),
Dual Mono, Dual Left, Dual Right


ASI Output
Number of ASI Outputs:
1
Standard:
EN50083-9 (V2:3/98) DVB-ASI
Data Bit Rate:
270 Mbps
Max TS Rate Supported:
160 Mbps


SD/HD SDI OUTPUT
Connector:
(4) Female BNC
Impedance:
75ohms
Genlock
Connectors:
(1) Female BNC (Frame Mounted)
References:
(2) User selectable frame references
SDI:
Line and Pixel Adjustment


SD-SDI SPECIFICATIONS
Standard:
ITU-BT.601/SMPTE 259M
Data Bit Rate:
270 Mbps
Number of Serial Video Outputs:
4 (2 Pair)
Display Modes:
Letterbox, Center-cut, and Anamorphic, or Active Format Descriptor (AFD)
Embedded Audio Format:
SMPTE272M
Sample Rates Supported:
32 – 48KHz
Sample Rate Out:
48KHz
Failure Response:
Squelch SDI or Raster (Selectable)


EMBEDDED AUDIO
Channel Pairs:
4 (2 complete audio groups)
Embedded Audio Control:
Selectable – “type”/disable (Independently controlled pairs)
Audio Type Standard:
Compressed (IEC 60958)
Uncompressed (IEC 61937)
Closed Captions:
Embedded - EIA-708B or EIA-608B
Line21 – Enable/Disable (selectable)


HD-SDI SPECIFICATIONS
Standard:
SMPTE 292M
Data Bit Rate:
1.485Gbps
Return loss:
>=15dB,
Video Format Standards:
SMPTE 274M (1080I, 29.97Hz)
SMPTE 296M (720P, 59.94Hz)
Embedded Audio Format:
SMPTE 299M
Sample Rates Supported:
32, 44.1, 48KHz
Sample Rate Output:
48KHz
Number of Embedded Audio Channel Pairs:
4 (2 complete audio groups)
Embedded Audio Control:
Selectable – “type” and disable (Independently controlled pairs)
Audio Type Standard:
Compressed (IEC 60958)
Uncompressed (IEC 61937)
Closed Captions:
Embedded - EIA-708B or EIA-608B
Enable/Disable – selectable


DIGITAL AUDIO OUT SPECIFICATIONS
General
Connector:
(2) BNC, female (User Selectable)
Impedance:
75ohms
Audio
Digital Output format:
S/PDIF/AES3id (Unbalanced)

Type (selectable):
Pass-through (native – AC3, MPEG, etc.),
PCM (uncompressed Ch1 and 2),
Standard:
IEC 60958-3 AC-3 (consumer),
MPEG-1/2, Layers I and II
AES3id (IEC 60958-4/61937),
Ch1/2 (professional)


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