4 ms·
Sonar beacon. Radio is useless underwater. It reportedly has radar reflectors and radio, for when it's on the surface. At 3800 m+ underwater, it'd need to be
by ethbr0 3y ago
Sonar beacon. Radio is useless underwater.
It reportedly has radar reflectors and radio, for when it's on the surface.
At 3800 m+ underwater, it'd need to be a powerful beacon. Even most military sonar maxes out around half that.
- ptx 3y agoCouldn't you have a beacon that detaches from the vehicle, floats up to the surface and transmits the signal from there?
- adql 3y agoYou'd need to carry 4km of cable with you
- HeyLaughingBoy 3y agoAKA an EPIRB: https://en.wikipedia.org/wiki/Emergency_position-indicating_radiobeacon https://en.wikipedia.org/wiki/Emergency_position-indicating_... You can buy one for a few hundred bucks, but based on everything I've read about this outfit so far, I'd be surprised if they even had that.
- Turskarama 3y agoIt's possible that it's floating just under the surface, in which case the radar reflectors won't help. Radar also isn't necessarily _great_ at finding anything bobbing in waves, as water will itself reflect radar. Additionally, if the problem was a power outage then the radio also might not work unless it had a separate power supply. Emergency beacons cost a few hundred dollars and are designed for this purpose, not having one is pure negligence. If they're on the bottom of the ocean then even if they're found a rescue is unlikely to happen in time.