I think it is some kind of network of receivers. It's another thing that involves fooling with a computer and software instead of radio. Or maybe I am confusing it with something called "Global Tuners" Rob K5UJ On Sat, Sep 21, 2013 at 5:33 PM, Bernie Doran <qedconsultants at embarqmail.com> wrote: > Am I the only one that does not know what a reverse beacon is? Bernie >