Ed, I have a Triton 544D fresh from factory overhaul, ready to ship. It has Narrow filters and noise blanker, with manual. Please contact me direct a k4bg@cetlink.net Bob K4BG -- FAQ on WWW: http://www.contesting.com/FAQ/tentec Submissions: tentec@contesting.com Administrative requests: tentec-REQUEST@contesting.com Problems: owner-tentec@contesting.com