Remember LORAN? It may be coming back.

[Rob Seastrom]

> On Aug 7, 2017, at 4:25 PM, RICHARD BARTH <w3hwn at comcast.net> wrote:
> 
> There has been talk about reinstalling it almost since it was taken down. It didn't take long
> for people to realize just how vulnerable GPS, GLONASS and Magellan really are to state-
> sponsored mucking around. 

Not just state-sponsored.  Whole bunch of things can cause single-source reliance on GPS to be a Bad Thing

https://transition.fcc.gov/bureaus/pshs/advisory/csric5/WG4B_FinalReport_122116.docx

(sorry for the MS Word)

-r