Radar Speed Sensor; Magnetics - Advanced Navigation Spatial Dual Reference Manual

9.7.4

Radar Speed Sensor

For applications requiring high performance in harsh conditions where aftermarket
wheel speed sensors are not feasible, a radar speed sensor is recommended.
Advanced Navigation recommends radar speed sensors from Stalker or GMH
Engineering.
9.8

Magnetics

Spatial Dual contains magnetometers which it uses to determine when the heading is
stationary to reduce drift when dual antenna heading is not available. For best heading
performance through extended GNSS outages, it is recommended to mount Spatial
Dual at least 10cm away from dynamic magnetic interference sources. Dynamic
magnetic interference sources include electric motors, high current wiring and moving
masses of steel. Magnetic interference will not cause heading errors with Spatial Dual
but mounting the unit in an area free of dynamic magnetic interference will help
reduce heading drift during periods where dual antenna heading is not available.
Spatial Dual Reference Manual
Illustration 20:
Aftermarket wheel
speed sensor
Illustration 21: Radar
speed sensor
Page 41 of 137
Version 2.3
12/04/2016