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Gemini/PD Installation Guide
3
2. Installation
2.1 Planning
the
Installation
2.1.1 Overview
To ensure trouble-free, efficient installation,
start by inspecting the vehicle to determine
the optimum position for Gemini
PD
and its
antennas as well as the routing of all associ-
ated cabling and wiring.
2.1.2 Location
Often, installations in cars are done in the
trunk, underneath the back window ledge or
on the trunk floor. In vans and small trucks,
it is usually done in the back of the vehicle.
In large vehicles, it is often done in the front
cabin.
Be sure to place the Gemini
PD
unit in such a
way that:
•
The LEDs can be seen (as an aid in
troubleshooting)
•
Access to the antenna DE-9 connectors
is possible without removing the unit
•
Sufficient air may flow around the unit
to provide adequate cooling
Gemini
PD
is not fully waterproof, therefore
it should be mounted sufficiently away from
an opened trunk lid or opened tailgate, win-
dows or doors to avoid exposure to rain
and/or snow. It also minimizes the chance
that material can be accidentally thrown on
the unit or of someone bumping against it.
2.1.3 Cable
Path
Try to route the cables away from locations
where they would be exposed to heat (ex-
haust pipes, mufflers, tailpipes, etc.), battery
acid, sharp edges, mechanical damage or
where they would be a nuisance to automo-
bile mechanics, the driver or the passengers.
Keep wiring away from automotive com-
puter modules, other electronic modules and
ignition circuits to help prevent interference
between these components and radio
equipment.
Try using existing holes in firewall and
trunk wall and the channels above and be-
low or beneath the doors, channels through
doors and window columns that are con-
venient to run cables and wires.
Whenever possible, install conduit in which
to run the cables.
2.2 Warnings
Before starting installation, review all of the
following warnings.
2.2.1 RF Radiation warning
The Federal Communications Commission
(FCC), with its action in the General
Docket, 79-144, March 13, 1985, has
adopted a safety standard for the human ex-
posure to radio frequency electromagnetic
energy emitted by FCC-regulated equip-
ment. Only proper installation of the trans-
ceiver antenna of Gemini
PD
as summarized
in paragraph 2.5 through 2.5.3 will result in
user exposure substantially below the FCC
recommended limits.
Antennas installation must be done by quali-
fied personnel. See paragraph 2.5 for rec-
ommended antenna positioning.
Transmissions when persons or animals out-
side the vehicle are within two feet of the
antenna may result in radio energy radiation
burns or related injuries.
2.2.2 Interference with vehicular
electronics
Certain vehicle electronic devices may be
prone to malfunction due to lack of protec-
tion from radio frequency energy present
when transmitting.
It includes, and is not limited to:
-
Electronic fuel injection systems
-
Electronic anti-skid braking systems
-
Electronic cruise control systems
