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If the height of the obstruction on the roof is 6 inches, the
antenna should be mounted no closer than 18 inches from
the obstruction. If the obstruction is higher than 6 inches,
you should add an additional 10 inches in distance for
every additional 3 inches in height.
Obstruction Height Clearance distance
6"……………………………………….18"
9"……………………………………….28"
12"……………………………………….38"
15"……………………………………….48"
.
Mount the antenna on the center line of the vehicle. There are two options for mounting.
Option A: Point the antenna directly toward the front of the vehicle with the cables and
wiring exiting the rear, driver’s side, of the antenna.
Option B: Mount the antenna pointing directly towards the back of the vehicle with
the cables and wiring exiting the front, passenger’s side, of the antenna.
Refer to the following drawings of Option A and Option B.
Fig 3.3 Fig 3.3.1
Option A Option B
FRONT OF VEHICLE FRONT OF VEHICLE
BACK OF VEHICLE BACK OF VEHICLE
The mounting
option will be one
of the factors used
to determine the
correct switch set-
ting in Section 3.6
Failure to mount
the antenna correctly
may result in inferior
tracking or failure to
track.
OBSTRUCTION
UNIT BASE
Fig 3.2
Mount on center
line of vehicle.
Mount on center
line of vehicle.
Rev. 9/30/05