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Transmission Modulator & Processor

Sencore ASM 988A

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Item #:EQ516119U
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Model Description:
Advanced Satellite Modulator

Model Details

The ASM 988A is an advanced satellite modulator that uses an advanced coding in the FEC layer to operate near Shannon's theoretical limit of bandwidth efficiency. The ASM 988A accepts an M2P, DVB-SPI, DVB-ASI input transport stream and produces up to a 30 Mbaud modulated signal agile about 70 MHz.


  • Provides 8PSK modulation in the same SNR environment as QPSK
  • Supports legacy QPSK mode
  • Supports 16QAM, Advanced QPSK
  • Supports M2P, DVB-SPI, DVB-ASI Input with 1 to 85 Mbits/s Transport stream input
  • Supports DSS QPSK
  • Supports DVB satellite format input
  • Monitored parameters for error reporting and detection
  • 10 Mhz reference clock input
  • -20 dB Front panel test output
  • Alarm generation with relay output for redundancy switching
  • Remote control through Ethernet
  • Supports SNMP protocol
  • Agile 70 MHz IF output
  • Packet stuffing and PCR recalculation for input data rate adjustment on ASI input

  • Monitored Parameters : Fault History, Input Sync presence, Output signal presence, Faults: Temperature, supply voltages and fans
  • Transport Stream Inputs : All TS inputs up to 8.5 Mbits/s; M2P input, DV25; DVB-SPI input, DB25 with loop through; DVB-ASI input, BNC with DB25 loop through; MPEG Bit/Byte clock output for modulator master mode operation; Packet stuffing and recalculation of PCR for input data rate adjustment >0% and <40% of packets stuffing; DVB-ASI sync mode for automatic data rate adjustment
  • External Clock input : 10 MHz input TTL on BNC connector; If external clock is present, unit automatically synchronizes to incoming 10 MHz. If clock absent, unit uses internal reference
  • General Specifications : Line Power: 100-240 Vac, 50-60 Hz; 2 lines x 18 Characters Vacuum Fluorescent Display; Dimensions: 19? W x 21? D x 1.75? H (1U rack mount chassis); Operating temperature Specs 0-50c
  • Control Specifications : RS232, and 10 Base T Ethernet connections for configuration, monitoring and control; Relay contact outputs for fault monitoring and automated redundancy switch control; SNMP protocol supported

Additional Information


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*Lease Prices are based on a 36 month lease
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