
T22/T22i Installation Guide
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without the prior written permission of Tramigo. Page 16
Mount
The T22 Automotive installation case has 2 covers that you can use to cover the LED panel.
Place the cover inside the case to cover the hole that provides access to the T22 control panel
then place the T22 base unit on top. The base unit will hold the plastic cover in place, or
optionally you can use 0.5mm 2-way tape to secure the cover
1. The black cover is used for installations where you want the control panel hidden so that
the unit is not noticed during future vehicle maintenance, or by car thieves.
2. The clear cover is used for installations where the control panel is visible, and adds extra
protection.
There are 2 primary methods of mounting the T22 unit:
1. Use the 4 screw holes to attach to a flat surface inside the vehicle. Use self drilling sheet-
metal screws, diameter max ST 4,2 mm, length about 20mm, cross recessed, pan head.
The T22 Rugged case can be mounted with 2-way tape.
2. Use 2 TY-wraps to secure the 2 parts of the installation case, then use double-sided
automotive grade tape to attach the case to the vehicle.
You may choose to mount the T22 somewhere covertly e.g. under the dashboard, but in all
cases the T22 GPS antenna must be placed such that sufficient “view of the sky” is available to
the T22 to allow for GPS signal reception from the orbiting GPS satellites and cellular radio
communications with the mobile radio network. These radio signals do not pass through metal or
electrically conductive material.
In general, you can expect that a mounting situation under the dashboard of a vehicle will be
satisfactory.
Check your windscreen: Should the windscreen be provided with heating that uses a metal
film or fine wires built into the windscreen, or features a special heat reflecting athermic layer,
then the GPS signal from the orbiting satellites will be screened from the T22.
The T22 should then be mounted at the side of the windscreen where there is sometimes a
special zone free of the metallization.
If this does not work, then you can locate the external GPS antenna under the windshield wipers,
front or rear bumpers, or any location where only plastic covers the antenna. If you need to run
the GPS antenna cable through the engine compartment use a standard plastic automotive grade
shrouding to protect the cable.