Vehicle / Marine case
UM982 for Low-Speed Heading
Vehicle and marine systems often need heading when speed is low or stationary. A dual-antenna UM982 setup can help when the baseline is long, rigid, and well measured.
| Problem | Course-over-ground heading becomes weak at low speed, while magnetometers can fail near vehicles, motors, and steel structures. |
|---|---|
| Recommended UM982 Setup | UM982 with two matched antennas, a measured rigid baseline, protected cables, clean power, and heading log validation. |
| Antenna / Baseline Notes | Longer and stiffer baselines improve heading confidence. Keep antennas symmetric and away from reflectors. |
| Correction Strategy | NTRIP or local base depending on route coverage; log correction age with heading output. |
| Field Checklist | Measure baseline, record antenna orientation, compare heading during stops/turns, log C/N0 and fix type. |
| Success Experience | Heading success depends as much on mechanical baseline discipline as on the receiver itself. |