Hello, The above title is very similar to another discussion on this forum but not quite the same objective so I hope you don't mind me starting another thread.
My objective is to get video from a device that is 30m underwater (fresh water) I can't use any sort of umbilical. The solution has to be contact less with a gap of minimal 10 cm but hopefully a little more..
The frame rate of my pictures isn't that important but would ideally like one small jpeg every second (or greater) if possible.
2.4ghz will not travel anywhere near 30m underwater but my initial tests suggest I may get 10 cm if I boost the power a little.
So My thoughts/questions are:-
My video device runs up and down a metal guide. Would it be possible to put a metal pipe alongside this guide and the 2.4ghz signal be transmitted on to the out side of the pipe and it act as a wave guide to get the signal up to the surface (other end of the pipe). Of course if anyone can think of any other way of getting my pictures to the surface then please suggest away. I'm at a bit of a loss on this one...
I could of course use any other frequency (ie 5ghz) the data rate is the important bit...
Thanks......
