Interesting reading regarding the government's P25 digital efforts for interoperability, and some discussion on proprietary/narrowband equipment. http://blog.tcomeng.com/index.php/2010/fcc-chairman-reports-on-the-failed-p2 5-digital-radio-effort/ '73 de JIM N2ZZ ARRL Vice Director Roanoke Division ARRL, the national association for Amateur RadioT