Hello Tony: Accidentally deleted your e mail response to my question, and just wanted to say thanks. I do not have a KX3. Is there any other way I can check and correct my wspr drift? Bill, Ai4PF -- View this message in context: http://elecraft.365791.n2.nabble.com/kt0ny-tp7619483.html Sent from the Elecraft mailing list archive at Nabble.com.