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Chapter 2 Satellites and Antennas | Up
Information Systems Technician Training Series, Module 4 - Communications Hardware | Next
Types of Satellites |
Figure 2-1.—OE-82C/WSC-1(V) antenna group.
Figure 2-2.—AS-2815/SSR-1 antenna physical configuration.
The AN/SRR-1 receiver system consists of up to
four AS-2815/SSR- 1 antennas (figure 2-2) with an
amplifier-converter, AM-6534/SSR-1, for each
antenna. The antennas are used to receive satellite fleet
broadcasts at frequencies of 240 to 315 MHz. The
antenna and converters are mounted above deck so that
at least one antenna is always in view of the satellite.
The newer satellite systems use the SHF band. One
of the major advantages of these systems is that they use
a very small parabolic antenna measuring only 12
inches in diameter.
A satellite antenna must be pointed at the satellite to
communicate. We must first determine the azimuth
(AZ) and elevation (EL) angles from a fixed location.
Figure 2-3 illustrates how these angles are derived,
2-2
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