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rolfedh@gmail.com posted on March 30, 2007, 1:39 pm
Looking for ways to run signals& power to from a low cost ROV
operating in less than 100 ft. of fresh lake water.
My main concern is leaks in the cable causing shorts. Has anyone
actually tried running off-the-shelf cable down to these depths? and
how well did it work?
operating in less than 100 ft. of fresh lake water.
My main concern is leaks in the cable causing shorts. Has anyone
actually tried running off-the-shelf cable down to these depths? and
how well did it work?
Michael posted on
Re: Does coax or ethernet leak under water pressure?
I suggest you sign up to the Yahoo group RobotROV.
Cat5 cable can be used and I've developed a commercial system that uses a
200ft+ Cat5 cable as the tether with no problems.
You can only send 700mA down each core in the cable though (and over long
distances you can encounter massive losses/voltage drops)
Michael
werty posted on
Re: Does coax or ethernet leak under water pressure?
Submarines use 10KHZ ...
Depth sounders use 50khz to 125khz .
Re: Does coax or ethernet leak under water pressure?
Could you clarify regarding "Submarines use 10KHZ ...Depth sounders
use 50khz to 125khz." Are you talking about VLF radio, audio through
water, or frequencies on coax cable?
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