Thanks for mentioning the square wave Jay. I'm seeing XDW too. Earlier copied SJ fairly well at times on 186.8493 kHz, receiving with QRSS30, slow. Nothing definite yet from Andy on WSPR. Will keep checking the list archive to see what others are finding as I look for new NDBs. 73, Garry, K3SIW, EN52ta, Elgin, IL