ASM 988A – Manual
3
SPECIFICATIONS
8PSK Modulation Parameters
FEC rate FEC 2/3 FEC ¾-I FEC ¾-II FEC 5/6 FEC 8/9
Bit rate in
Mbits/s
0.52 to 57.1 0.55 to 62.8 0.5 to 61.2 .59 to 68.5 0.61 to 71.4
Baud rate in
Mbauds
0.256 to 30 0.256 to 30 0.256 to 30 0.256 to 30 0.256 to 30
Note: FEC ¾-I represents 2.1 bits/ symbols and FEC ¾-II represents 2.05 bits/ symbols
• Excess Bandwidth (alpha): 0.1 to 0.5 with 0.01 Resolution
• Spectral Inversion: on/off
QPSK Modulation Parameters
• FEC Code Rates: 1/2, 2/3, 3/4, 5/6, 7/8.
• FEC Modes: As per ETSI EN 300 421 V1.1.2 (DVB)
• Symbol Rate: 0.256 MSps to 30 MSps
• Excess Bandwidth (alpha): 0.1 to 0.5 with 0.01 Resolution
• Spectral Inversion: on/off
ADVANCED QPSK Modulation Parameters
• FEC Code Rates: 1/4, 1/2, 3/4.
• FEC Modes: Turbo Code
• Symbol Rate: 0.256 MSps to 30 MSps
• Excess Bandwidth (alpha): 0.1 to 0.5 with 0.01 Resolution
16QAM Modulation Parameters
• FEC Rate: 3/4
• FEC Mode: Turbo code
• Symbol Rate: 0.256 MSps to 30 MSps
• Excess Bandwidth (alpha): 0.1 to 0.5 with 0.01 Resolution
DSS QPSK Modulation Parameters:
• FEC Rate: 1/2, 2/3, 6/7 FEC Mode
• Symbol Rate: 0.256 MSps to 30 MSps
• Excess Bandwidth (alpha): 0.1 to 0.5 with 0.01 Resolution
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