GeoSIG Ltd
GS_GXR_GPS_User_Manual_V03.doc / 22.06.2010
Page 6
GPS User Manual
2.5. Mounting the GPS Box
a
It is recommended to perform a check of the GPS function before mounting the box to its
final location, as described in section 3.
The GXR-GPS box can be fixed to various locations. The position of the box should be defined
according to a position where GPS antenna can easily get the satellite signals. Typically the box is
fixed on an outside wall or on a roof. This is an important point since for the synchronisation of the
instrument, the antenna should receive at least signals from 3 satellites.
a
Make sure that at least 75% of the sky is visible at all times over the GPS box.
Fixation of the housing should be done with M4 screws. With spacings and locations as shown in
Figure 11, Figure 12 and Figure 13. Type of screws depends on the type of surface where box is
going to be fixed.
Figure 11. Mechanical fixation of housing
Figure 12. Inside view of the GXR-GPS housing
Figure 13. Inside view of the GXR-GPS-485 housing
