Figure 3-19.—UHF Follow-On satellite exploded view.
communications capability to the National Command
Authority (NCA). Second, it will provide sufficient
communications support for both strategic and tactical
missions. The primary objective of the MILSTAR
program is to develop and deploy an affordable, jam-
resistant SATCOM system that will meet both long-
haul and local communications needs.
MILSTAR will use communications terminals
that will provide Secure Voice (SV), Teletype (TTY),
data, and facsimile EHF SATCOM. MILSTAR
terminals will be installed on aircraft, in fixed
telecommunications centers, landbased tactical
elements, shorebased telecommunications centers,
surface ships, and submarines.
In the following paragraphs, we will look at some
of the equipment associated with satellite com-
munications.
SATELLITE EQUIPMENT
The equipment used in Navy SATCOM sub-
systems can be divided into two general groups, rf
terminals and the baseband equipment common to a
processor installation. The selection of specific
equipment is determined by the operating en-
vironment—whether installation is to be aboard a ship,
submarine, aircraft, or shore installation. In this
chapter, we will limit our discussion primarily to
commonly used shipboard and shore equipment.
Satellite Communications Terminal
AN/FSC-79
The AN/FSC-79 terminal processes and converts
70-MHz signals to X-band (shf) transmitted signals. It
also converts received signals from X-band to 70 MHz.
This terminal can simultaneously transmit a spread
spectrum carrier and receive a satellite beacon signal.
The design of the terminal provides redundancy in
many components to ensure a high degree of
availability. The terminals are installed at NCTAMS
LANT, MED, WESTPAC, EASTPAC, and NCTS,
Stockton (contractor operated).
Uhf Transceiver AN/WSC-5(V)
The AN/WSC-5(V) transceiver provides an
eight-circuit, full-duplex data operation or, as an
alternative, six full-duplex data circuits and two
FM audio or tone-group circuits. It also provides
an interface for connectivity to the uhf DAMA
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