Appendix C. Specifications; Specifications; General Specifications; Table C-1. General Specifications - Comtech EF Data SDM-300A Installation And Operation Manual

This appendix describes the SDM-300A Satellite Modem specifications.
C.1

Specifications

C.1.1

General Specifications

Table C-1 lists the general specifications of the modem.
Operating Frequency Range
Modulation Types
(Front panel selection)
Operating Channel Spacing
Baseband Interface
Elastic Buffer
Rev. 4
C
SPECIFICATIONS

Table C-1. General Specifications

General Specifications
50 to 180 MHz
Synthesized in 1 Hz steps
8PSK
BPSK
QPSK
OQPSK (FAST upgrade, front panel selection)
Less than 0.5 dB degradation operating with two adjacent like
channels (each 10 dB higher at 1.3 times the symbol rate)
A single adjacent carrier spaced 1.4 times the symbol rate, up
to +20 dBm
EIA-422/449
V.35
EIA-232
G.703 -1544
G.703 -2048
(Field-selectable)
32 to 262144 bits, selectable from front panel in bits or ms
Appendix C.
C–1