I was thinking it would be cool if it (the transmitter) could serve two purposes:
- non emergency, a tracking blip in a wire-frame (3d) display that could be rotated so the boat captain could track people in the water. Maybe an in-water DM could have an HUD so they could go "recover" straying buddies.
- an emergency mode that would go high power after a certain elapsed time or when manually triggered, with a powerful enough signal to come up through the water column or be detected from the surface.
Oh yeah, and it should be price competitive with a good safety sausage
Remember, this is future, speculative stuff, so as long as it doesn't violate the laws of physics, why not?
Personally, I'd rather get the turbidity/silt-cancelling mask first, though, I'd have a lot more use for that on a day-to-day basis.
- non emergency, a tracking blip in a wire-frame (3d) display that could be rotated so the boat captain could track people in the water. Maybe an in-water DM could have an HUD so they could go "recover" straying buddies.
- an emergency mode that would go high power after a certain elapsed time or when manually triggered, with a powerful enough signal to come up through the water column or be detected from the surface.
Oh yeah, and it should be price competitive with a good safety sausage

Remember, this is future, speculative stuff, so as long as it doesn't violate the laws of physics, why not?
Personally, I'd rather get the turbidity/silt-cancelling mask first, though, I'd have a lot more use for that on a day-to-day basis.