Jay: Sawtooth is solid copy here - and measuring 125 Hz above RY. RY is 569 here this afternoon (3 pm EDT) 1900Z Sawtooth has some QSB but at time is a nice S7. Last Summer, a similar waveform was observed - do we know where Dex has been lately ? Dropped a picture on http://technology.fanshawec.on.ca/tele354/strange.htm Mitch