Commands for the Nav state engine. They are prefixed by "NAV ".
- DECLINATION:
- Sets the declination value. To set the declination to a set value, use DECLINATION <Value> To set the decliantion dynamically based on current location, use DECLINATION AUTO. To set the declination to a given lat lon point use DECLINATION <lat> <lon> <year> <month>
- TW CELL:
- turns on or off true wind over cellular