Federal Signal Corporation Personnel Alerting System, Installation And Operation Instructions Manual

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INSTALLATION
59
batteries 1 & 2 last. Use an anti-
oxidant to protect the terminals.
4. Verify the battery connections are
tightened securely to make proper
electrical connections.
5.6 Antenna Types
Determine type of antenna to be installed:
1. Cabinet Mounted Magnetic Base
2. Remote Mounted Magnetic Base
3. Yagi External Antenna Type
4. Omni external antenna Type
5.7 Cabinet Mounted Magnetic Base
Antenna Installation
If the UVIC is being installed in a very good
RF coverage area, a cabinet mounted
magnetic base antenna may be used.
1. Connect the antenna cable to the
antenna connector on the top of the
UVIC cabinet.
2. Mount the magnetic antenna base on
the top of the UVIC cabinet.
5.8 Remote Mounted Magnetic Base
Antenna Installation
The remote magnetic base antenna allows
for additional antenna height to improve
reception.
1. Locate a suitable location for the
antenna that is away from any electrical
devices, high voltage and computer
wiring. The location should be as high
as possible and should enable the
antenna mast to be at least 2’ away
from any grounded metal objects.
2. Mount the antenna to a flat, secure
metal structure with at least 225” square
area that the magnetic mount will
securely stick to.
5.9 Yagi Antenna Installation
Yagi Antenna Pre-Assembly
1. Unpack the antenna and locate the
following parts:
•
Boom (1-14” for 5 element model,
7/8” diameter for 3 element model)
•
3/8 diameter elements
•
(y---3 = 3 elements, y----5 = 5
elements)
•
Gamma match parts bag
•
Mounting bracket parts bag
2. Find the proper element dimension chart
for your antenna, within the antenna
instructions, and trim each element
according to your operating frequency.
Use care to trim equal lengths from
each end of each element ensuring that
the mounting hole is at the center.
Note A: Proper trimming and adjustment is
critical to the Voltage standing wave ratio,
known as VSWR. (Basic understanding, in
laymen’s terms, for VSWR- reflected power
is bad and decreases forward power). (The
life of the radio and transmit capabilities is
dependent upon the VSWR being low as
possible).
Note B: If two frequencies are being used,
then trim the antenna to the transmit
frequency of the unit where the antenna will
be mounted.