Hi, Stephen,
For what it's worth . . .our actual tests for range in salt water
. VHF: max 6 feet . . . RC max 10 - 15 feet ( this was contolling RC model
subs/ROV's from our sub - highly power output dependant) GPS max 0 feet (
holding a portable GPS against the acrylic 'window' just under the surface
- unit could not acquire sattelites. Pop up so dome was above water and got
them easily.
Phil Nuytten