[PSUBS-MAILIST] Surface controlled drones

[Hugh Fulton via Personal_Submersibles]

Welcome to P-Subs. At P-Subs we have a special section for helping expert
Engineers. You will find good answers from Vance, Phil, Sean, Alec, and
others in that section.
Regards, Hugh


-----Original Message-----
From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org]
On Behalf Of Nathan.tuttle via Personal_Submersibles
Sent: Tuesday, 3 June 2014 9:27 a.m.
To: personal_submersibles at psubs.org
Subject: [PSUBS-MAILIST] Surface controlled drones

Hey I am a submersible enthusiast and an expert engineer.

One thing that is bugging me is why communication with devices at great
depths (the very bottom of the ocean) seems to be so hard.

The thing I am working on is miniature drones fully equipped and deployed en
masse to scan and collect data from the bottom of the ocean.

Primarily, I want to find Amelia Earharts wreckage ;)

My question is, would it be difficult to create an underwater device that
can communicate via microwave to surface?

Microwaves on the electromagnetic spectrum can pass through things in a line
of sight manner if there is nothing obstructing them.

But I am weak on my physics and maybe the several billion tons of water that
it has to pass through would squelch the signal.

Is there a means of telecommunication with high enough bandwidth to transfer
signals from that distance and that depth?

Although our earth is covered 70% of water. I think we have seen technology
come to the point where a mass deployment of small controllable drones
equipped with detection devices could search the sea floor.

I would great appreciate your input.

Sent from my iPad
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