Navy engineers develop seawater antenna

well, somedays ago Ive watched something like that at youtube...something like a wet earth radio antenna, maybe they copy the idea from them.

In the late 70s we were using water spouts - trees - ionized air and even people as antennas - most were adequate radiators.

So my comment: many have been there done it ? decades ago.

Side Bar: A vertical antenna is defined as an antenna that radiates poorly in all directions ? a conductive fluid antenna doubly so.

I find this bit of technology amazing! Any hints available on how to build one?

Try your local garden center; a little pond pump and a box of Epsom salts should get you started. This might also be an excuse to finally invest in a Crazy Straw, just to see what happens...

The trick is to guide a stream of conductive water through a wire coil impedance-matched to your favorite disposable antenna amplifier. Hook up your signal and wave your RF detector around the stream; there should be something there.

Making the stream the right geometry to radiate efficiently would be big trick. I suspect that a Crazy Straw would work better than a simple freespringing fountain jet as an antenna. Perhaps 30 feet of 3/4-inch PVC pipe laid horizontally?

Too bad no technical details i.e. Frequency, distance covered. etc. are shown.. I believe even the frequency shown on the dial of the Hand-held tranceiver is not on a approved Amateur Radio band plan.. altho the use of call signs would make it appear legit.!
This lack of information.. reduces the value of such a presentation.
Radio Ham (in New Zealand)