System Specifications Summary; Table 1-3. System Specifications Summary - Comtech EF Data SLM-7650 Installation And Operation Manual

SLM-7650 Satellite Modem
Introduction
1.5

System Specifications Summary

Characteristic
System
Operating Frequency Range
Modulation Types
Digital Data Rate
Symbol Rate
External Reference In
Internal Reference Stability
Scrambling
IDR/IBS Framing Compatibility
Built-in Test (BIT)
Summary Faults
Modulation
Output Power
Output Return Loss
Output Impedance
Spurious
Tx Clock Source
Output Connector
Demodulation
Input Power:
Desired Carrier
Maximum Composite
Input Impedance
Input Connector
Carrier Acquisition Range
Input Return Loss
Buffer Clock
Elastic Buffer

Table 1-3. System Specifications Summary

50 to 90, 100 to 180 MHz, in 1 Hz steps
Non-Turbo Modulation Types
BPSK: 1/1 and 1/2 (CEVD)
QPSK: 1/1, 1/2, 3/4, and 7/8 (CEVD)
OQPSK: 1/1, 1/2, 3/4, and 7/8 (CEVD)
8-PSK: 2/3 and 5/6 (TCM)
16-QAM: 3/4, 7/8 (CEVD)
9.6 kbps to 20.0 Mbps, in 1 bps steps
9.6 ks/s to 10 Ms/s
1, 5, 10, or 20 MHz, selectable
-7
± 2 x 10
V.35 scrambler variations to meet MIL-STD-188-165 and IESS-308, -309,
-310.
Support for IDR and IBS framing. Allows basic IDR/IBS open network
operation.
Fault and status reporting, BER performance monitoring, IF loopback,
programmable test modes, Tx/Rx 2047 pattern provides and estimated BER.
Reported via 15-pin D sub,
FORM C relay contacts for Tx, Rx, Common equipment faults,
and Tx and Rx Alarms.
+5 to –30 dBm, adjustable in 0.1 dB steps
17 dB
50Ω
0 to 500 MHz (-5 to –30 dBm) –5 dBc
0 to 500 MHz (+5 tp –20 dBm) –50 dBc > 64 kbps
o to 500 MHz (+5 to –20 dBm) _45 dBc < 64 kbps
INT, Tx Terrestrial, and Data Source Sync
TNC
-15 to –55 dBm
0 dBm or +40 dBc
50Ω
TNC
± 35 kHz, selectable
17 dB minimum
INT, EXTERNAL, Tx Terrestrial, Rx Satellite
32 to 1,048,576 bits selectable
1–6
Specification
Turbo Modulation Types
BPSK: 5/16 and 21/44
QPSK: 3/4, 7/8, 17/18, and 21/44
OQPSK: 3/4, 7/8, 17/18, and 21/44
8-PSK: 3/4, 7/8, and 17/18
16-QAM: 3/4 and 7/8
Revision 4
MN/SLM7650.IOM