Its all intriguing anyway! Not that I have a large enough body of water
nearby to try experimenting with it though.

I did a quick bit of browsing around and even found some experiments
done by a VK5 using 160M (http://www.qsl.net/vk5br/UwaterComms.htm) I
note he has some attenuation curves that might be worth a look at.
Although some kind of packet, PSK or other kind of digital system would
work in an SSB bandwidth the problem for the OP is that he probably
doesnt want to take a PC with him underwater! Still think a packet TNC
at 300BPS might be usable though.

I am actually here in more ways than one.. Am living in East Texas.

Cheers Bob W5/VK2YQA

nitespark wrote:
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Nice to see folks from "VK" land here with us.

73 OM
Andy
WD4KDN