Very cool indeed! It does have some limitations as you can see in the below quote. It will be interesting to see how this device could be used inside a sub with some sort of external antenna that might be able to even boast it's range a bit. It must be sending a very simple signal for each preset text message, instead of the entire message. I'm still would like to be able to type any messange I like, when ever I want to. Like: Did you see that UFO, are the cookies still up in the boat, can you please untie the robe that is still keeping me attached to the dock, I'm inside Moby Dick, call the Navy. ;)' "Bi-directional text messages Using bi-directional text messaging technology, the UDI system allows divers to transmit pre-saved messages to other divers in the network, at a range of up to 500 meters (550 yards). Regards, Brent Hartwig
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