G P S AC C E S S O R I E S
The requirements, environment, goals and
Symmetricom provides a broad array of
equipment of communication systems
GPS accessories, from lightning arrestors
define the time and frequency solutions that
to in-line amplifiers to antennas, that are
are integrated into these systems.
designed to support the unique requirements
of each communication system.
Because no two communication systems
are exactly alike, consideration that goes
Our experts can advise you on what
into choosing the core product, such as a
accessories will best serve your needs,
GPS time and frequency receiver, must also
because when it comes to your success, we
go into the selection of those accessories
believe that no part is too small.
that will guarantee the efficacy, protection
and integrity of the entire system.
Your Network. Optimized.
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GPS Antenna Accessories
Lightning Arrestor
L1 Antenna GPS Up/Down
Converter
Lightning may damage GPS system components and receiving
equipment, even without a direct hit, resulting in costly repairs
and critical interruption of service. The lightning arrestor
is designed to work in conjunction with a low-resistance,
low-inductance ground to protect your GPS receiver and elements of the antenna system from lightning discharges and
field-induced electrical surges. In-line lightning arrestors
are mounted between the antenna and the point where the
cable enters the building and require no additional power or
wiring except the ground lead.
Use the GPS Down/Up converter for cable runs of 250 to 1500
feet (75 m to 457 m). GPS signal down/up conversion is required
when signal losses in the antenna cable limit the distance
between the receiver and the antenna assembly. The Down/Up
Converter may also work with non-Symmetricom L1 GPS
receivers. The signal output from the converter is L1 C/A code
that can be decoded by any L1 GPS receiver.
Antenna Splitter
In-Line Antenna Amplifier
In-line amplifiers overcome signal attenuation in by amplifying
the GPS signal. Mounting the amplifier inside the mounting
mast helps protect it from moisture and exposure to the elements. Use the in-line amplifier for cable runs of 150 to 300
feet (45 m to 90 m).
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An antenna splitter may be used to drive multiple GPS receivers
using a single antenna. With built-in amplification to overcome
splitter losses, the Active Splitters may be conveniently cascaded
without adding separate amplifiers and bias-tees between splitters. Power is conveniently obtained from the GPS receiver(s)
connected to the amplifier, eliminating the need for a separate
dc power supply and wiring.
SY M M E T R I C O M