I have put together a tether camera, so that you can get a third person perspective of the rov. It could be useful for discovering what you are stuck on or seeing how sea life is reacting to the rov.
It works great in the air, but once the ribbon cable goes into the water, the signal dies, or on occasion, the picture has lots of interference then dies. Once the whole cable is in the water though it is over.
I thought perhaps there was some sort of interference from the water, but that does not seem to make any sense. Perhaps it is lack of interference between the conductors that the cable relies on for a clear signal? Any one have any ideas? Pictures below of the build for interest sake and so you have an idea what the ‘H E double hockey sticks’ i am talking about.
The first few pictures are from the test run. I did take pictures of potting the the actual tether cam body. It is a Raspberry pi with the excess ports snipped off.
Oh ya, I added external lights too.