AutoGRAPH-GSM • USER MANUAL
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TechnoKom © 2015
Connection of GPS/GLONASS
Antenna
The controller is supplied with magnetic mounted waterproof, active GPS/GLONASS antenna.
The GPS/GLONASS antenna is connected to the connector in the lower-right part of the
AutoGRAPH-GSM controller.
The position of the GPS/GLONASS antenna is critical to goof performance of the GPS
receiver, therefore it is highly recommended to plan the antenna’s position on a vehicle before
installation.
The antenna should be located in an open area, which shall ensure free GPS signal
transmission; its active surface should face the sky and be parallel to the celestial sphere.
Possible variants are illustrated in the picture below:
1. The recommended position for
GPS/GLONASS antenna location
2. A possible position for GPS/
GLONASS antenna location
3. Un-recommended position for
GPS/ GLONASS antenna location
When locating the antenna make allowance for the length of its cable. When laying the cable, avoid
sharp edges. Cable bend radius should be at least 10 cable diameters (about 3…5 cm).
Do not fix antenna before you make settings and configure your system, it is highly recommended
to determine its final position and install only when you are absolutely sure that the system is
configured and operates properly.
Do not splice or cut the antenna cable.
i
NOTE
IMPORTANT