I have an email folder R390/R390A. Actually several for various topics (read hobbies). Amateur radio, antennas, canoes, fly fishing, fly tying, recipes, etc.. Anyway I dug this one out in case anyone was interested in going the SDR route for their filter solutions. Or just for fun. http://www.w1vd.com/R-390ASoftRockdetails.html Gary L Webb NI9V