Burst Mode Specifications - Comtech EF Data SNM-1001L Installation And Operation Manual

SNM-1001L Satellite Modem
Burst Mode Modulator Operation
C.6

Burst Mode Specifications

Operating Frequency Range
Type of Modulation
Operating Channel Spacing
Bit Error Rate
Phase Noise
Digital Interface
(Field Changeable Plug-in Modules)
One Interface per Module)
Digital Data Rate:
Doppler Buffer
Forward Error Correction
Data Scrambling
Prime Power
Operating Temperature
Humidity
Diagnostic Features
QPSK, 1/2 Rate
QPSK, 1/2 Rate
General Specifications
950 to 1750 MHz, synthesized in 100 Hz steps
QPSK
Less than 0.5 dB degradation operating with 2 adjacent-
like channels, each 10 dB higher at 1.3 times the symbol
rate, or a minimum of 1.2 times the specified acquisition
range
See Table 1-3
In accordance with IESS-308
RS-422/449 on 37-pin D
MIL-STD-188 on 37-pin D
V.35 on 25-pin D or 34-pin block
RS-232 on 25 pin-D
19.2 kbps
57.6 kbps
N/A
Convolutional encoding with soft decision, K=7 Viterbi
decoding or Sequential
Selectable or none, 2 15 -1, synchronous
90 to 264 VAC auto select, 47 to 63 Hz, 50W maximum,
fused at 2A, 38 to 64 VDC
0° to 50°C (32 to 122°F)
0 to 95% noncondensing
IF Loopback
RF Loopback
Baseband Loopback (bi-directional, electrical)
Fault Monitoring
Bit Error Rate Monitoring
Remote Control via Serial Port
C–17
Revision 1
MN/SNM1001L.OM