Spatial FOG Reference ManualPage 34 of 144Version 2.303/05/20189 Installation9.1 Installation Checklist1. Securely mount the unit to the vehicle following the guidelines in section 9.2.2. Mount the GNSS antenna following the guidelines in section 9.5 and thenconnect the antenna cable between the antenna and the Spatial FOG unit.3. Connect the connector cable to Spatial FOG and then connect a suitable powersupply as specified in section 9.4.4. Connect the USB converter cable to the primary port and a computer, open theSpatial FOG Manager software and click connect.5. If the unit is mounted in an alignment other than the standard alignment of Xpointing forward and Z pointing down, this alignment ofset will need to beentered into the Alignment Configuration dialogue in Spatial FOG Manager.Please see section 9.2.1 for more details.6. Accurately measure the GNSS antenna ofset from the centre of the Spatial FOGunit to the central base of the antenna in the body co-ordinate frame (X positiveforward and Z positive down) and enter these values into the AlignmentConfiguration dialogue in Spatial FOG Manager. Please see section 9.5 for moredetails. Please note that the body axes are always X positive forward and Zpositive down irrespective of any alignment ofset entered in the previous step.7. Enter the vehicle type in the Filter Options dialogue in Spatial FOG Manager.8. The system is now ready for use.9.2 Position and AlignmentWhen installing Spatial FOG into a vehicle, correct positioning and alignment areessential to achieve good performance. There are a number of goals in selecting amounting site in your application, these are:1. Spatial FOG should be mounted in an area that is not going to exceed it'stemperature range.2. Spatial FOG should be mounted away from vibration where possible.3. Spatial FOG should be mounted within several metres of the GNSS antennawhere possible.4. If atmospheric altitude is going to be used, the two vents on the sides of SpatialFOG should not be obstructed.5. Spatial FOG should be mounted close to the centre of gravity of the vehiclewhere possible.6. As FOG technology is subject to minor bias variations under strong magneticfields, Spatial FOG should be mounted at least 0.25 metres away from sourcesof dynamic magnetic interference such as high current wiring, large motors androtating or reciprocating machinery.
