Table of Contents
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Preface
Overview of Changes to Previous Edition
• Offset QPSK mode added for Rate 3/4 Turbo
• RF Loopback added to test modes
• Async overhead mode added as an alternative to EDMAC (See Appendix C)
About this Manual
This manual provides installation and operation information for the Comtech EF Data
CDM-550T satellite modem. This is a technical document intended for earth station
engineers, technicians, and operators responsible for the operation and maintenance of
the CDM-550T.
Conventions and References
Metric Conversion
Metric conversion information is located on the inside back cover of this manual. This
information is provided to assist the operator in cross-referencing English to Metric
conversions.
Cautions and Warnings
CAUTION
WARNING
viii
CAUTION indicates a hazardous situation that, if not avoided, may result in
minor or moderate injury. CAUTION may also be used to indicate other
unsafe practices or risks of property damage.
WARNING indicates a potentially hazardous situation that, if not avoided,
could result in death or serious injury.
CDM-550T Satellite Modem
Rev.1.3
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