Functional Description; Physical Description - Comtech EF Data CSAT-5060 Installation And Operation Manual

5 to 25 Watt Model C-Band Transceiver
Introduction
1.1 F
UNCTIONAL
The Transceiver is designed for use in communication systems, or in satellite up-link data
systems, for the reception of SCPC DAMA, and TDMA communication signals. It can also be
used in communications system applications with full transponder HDTV and analog TV.
The converter is environmentally sealed and is designed to be hard mounted on or near the
antenna structure. A covered cooling fan is mounted on the outside of the unit to maintain a
reduced operating temperature for enhanced reliability
The Downconverter RF input connector is wired to supply DC voltage to an LNA.
This voltage is capable of damaging any test equipment connected to the
connector. Do not connect test equipment to this connector without a coaxial DC
WARNING
block between the connector and the test equipment.
1.2 P
HYSICAL
The downconverter section operates in the frequency range of 3625 to 4200 MHz, with a
temperature compensated gain of 45 dB. This high level of gain provides an IF output signal
level of +13 dBm at 1 dB of gain compression. This provides the capability to handle longer
modem cable runs, or fan out for splitting networks without requiring additional line amplifiers.
The upconverter section operates over a frequency range of 5845 to 6425 MHz with a
temperature compensated gain of 74 dB. The RF output level is +47 dBm minimum at 1 dB gain
compression over the operating temperature range.
The phase noise performance of both the upconverter and downconverter sections exceeds the
Intelsat phase noise mask for IBS and IDR services by 6 dB. This allows phase dependent
demodulators to provide the best possible performance. The close-in phase noise is also very low
making the converter ideal for low data rate applications such as DAMA hub earth stations.
An auto select EIA-232 or EIA-485 pin out is available in the circular COM connector on the
exterior of the chassis. All configuration control, status retrieval and unit adjustments are
available as ASCII commands through this interface.
D
ESCRIPTION
D
ESCRIPTION
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1-2
Revision 1
MN/CSAT506025.IOM