Bluetooth underwater

[GenesisFactor]

Has anyone ever tried using BT underwater? How does the different medium affect the 2.4Ghz waves in terms of range and quality of signal? If i can go wireless on a few items, i can start playing with a few things in my field, which is why i'm curious

[CompuDude]

Water is pretty hellacious to punch a signal through. I'm not aware of any formal tests, I doubt you'd have enough signal penetration to be usable at normal diving depths. (over 30')

Bluetooth, being a low power short range signal to begin with, would probably be even worse.

[kobalap]

Originally Posted by GenesisFactor

Has anyone ever tried using BT underwater? How does the different medium affect the 2.4Ghz waves in terms of range and quality of signal? If i can go wireless on a few items, i can start playing with a few things in my field, which is why i'm curious

Is there a scuba problem you are trying to solve?

[GenesisFactor]

not a problem, just trying to create a Personal Area Network without wires as i want to probably use some non aquatic based devices under water. 10ft max range i'm guessing, as they will be mounted on the body or hand held. As for Wifi, yeah...its probably a long shot.

I know there are under water walkie talkies. I'm still wondering how THOSE work

[mentalmarine]

When you need to make a call, you need to make a call!

[in_cavediver]

The thing is with water, low freq stuff works better and goes farther than high freq stuff. Hence why sonar is low freq. The tradeoff - less bandwidth. You simply can't send as much information at 200Mhz and you can at 2.4Ghz.

Now, what is the range - frankly, I don't want to do the math to find out.

[aggie99]

What technology do the underwater com units use?

[chris in the socal]

Just wondering what kind of aplication underwater this will really have.

[FishFood]

OceanReef has developed a system for underwater cell phone support:

Welcome to Ocean REEF

[chris in the socal]

man check out that web site its pretty neet has alot of high tech stuff.