Sorry the info on War'ds New Book didn't post.. Two Way Radios and Scanners for Dummies http://www.dummies.com/WileyCDA/DummiesTitle/productCd-0764595822.html. Send me mail to n6ki_73 at sbcglobal.net if interested in looking at the write up and I'll send you the original mail I tried to post 73, Dennis N6KI