Comment Need a low-grade GPS (Score 1) 61
It mighty be moderately useful to have a GPS that gets you "close enough" but isn't worth jamming for military purposes - something that puts you within, say, half a mile, so that shipping etc. aren't totally hosed. I know it's not good for navigating in close to shoals or shores, but in open water it'd be useful.
I'm sure there's some flaw with this idea but meh, it might be worth pondering.