Demodulator specifications, 1 demodulator specifications – Comtech EF Data SNM-1002 User Manual
Page 106
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SNM-1002 LinkSync
Modem
Revision 2
Theory of Operation
MN/SNM1002.OM
4–12
4.4.1 Demodulator
Specifications
Refer to Table 4-2 for demodulator specification.
Table 4-2. Demodulator Specification
Parameter
Specification
Demodulation Types
BPSK, QPSK
Data Rate Range
2.4 kbit/s to 1.25 Mbit/s
1/2 Rate BPSK
4.8 kbit/s to 2.5 Mbit/s
1/2 Rate QPSK
7.2 kbit/s to 3.75 Mbit/s
3/4 Rate QPSK
8.4 kbit/s to 4.375 Mbit/s
7/8 Rate QPSK
Symbol Rate Range
4.8 ks/s to 2.5 Ms/s
IF Frequency
50 to 180 MHz, in 1 Hz steps
Input Level
-30 to -55 dBm
Decoding Type
Viterbi: 1/2, 3/4, 7/8
Filter Masks
EFD Closed net
Descrambler Type
V.35
Reported Faults
Carrier Detect
IF Synthesizer
BER Threshold
RX Clock Syn
Module
I Channel
Q Channel
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