Model 1012 Radio Installation; Model 1050 Antenna Mounting - GTT Opticom GPS System Installation Manual

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5.3 Model 1012 Radio Installation

This section describes how to install the Model
1012 version of the Opticom™ GPS radio.
Important Note:
The Model 1012 radio is designed to be installed
directly inside of the traffic cabinet with the
antenna mounted on the roof of the cabinet.
This style radio should only be installed if it is
determined from a site survey that the location
will not overly degrade GPS reception and or
radio transmission and reception. Since the
antenna is mounted at the height of the top of
the traffic cabinet rather than at the height of the
traffic signals, the antenna's view of the sky (for
GPS reception) may be less. Also by mounting
the antenna lower, obstacles such as buildings,
trees etc., will likely reduce radio range. If it is
determined by survey of the intersection that
these reductions will still allow the Opticom GPS
system to operate satisfactorily, then the Model
1012 may be installed. If not, it is recommended
that a Model 1010 radio be used.
IMPORTANT NOTE
Modifying the radio/GPS unit may seriously
damage the equipment and void the warranty.
Do not attempt to modify the radio/GPS
circuitry in any way. Modifying the radio and/or
antenna in any way may cause the radio to
violate FCC/IC requirements.
REMARQUE IMPORTANTE
La modification du système radio/GPS risque
d'endommager sérieusement le matériel et d'annuler
la garantie. Ne pas tenter de modifier les circuits du
système radio/GPS de quelque façon que ce soit. En
modifiant le système radio et/ou l'antenne de quelque
façon que ce soit, la radio risque de ne plus répondre
aux exigences de la FCC/IC.
Intersection Equipment Installation Instructions

5.3.1 Model 1050 Antenna mounting

NOTE:
1. Do not paint the radio/GPS antenna
cover. Metals or metal oxides in the
paint may interfere with GPS reception
and/or radio reception and transmission.
2. Be sure to capture metal shavings when
drilling a hole in the cabinet.
Antenna mounting factors:
•
The antenna must be mounted on the top
of the cabinet so that the GPS antenna has
a good view of the sky.
•
To minimize possible vandalism, mount it
in a location that is the least visible.
1. Remove the nut and washer from the
Radio/GPS antenna.
2. Drill a 5/8 to 3/4 inch hole in the top of the
cabinet. See Figure 5-7.
3. Route the cables through the hole and replace
the lock washer and nut.
4. Tighten the nut with a 15/16 inch wrench (a
24 mm wrench may be used if a 15/16 inch
wrench is not available).
Note: Do not over tighten the nut or the antenna
may be damaged. 5 ft/lbs is the recommended
torque.
5. Apply silicone RTV (not provided) around the
antenna to provide a good seal with the
antenna's built-in gasket.