Topband: Unknown Pulse Signal Wiping out 1900-1925 kHz

[Donald Chester]

More information on the nature of the signal can be found here:

http://www.topbandhams.com/tech-page/30-washing-machine-daylight-recording-k3pgp  

I did not hear it at all last night (Tuesday). It was weak but audible here Monday night, but I noticed propagation was flaky, apparently affected by a solar event. SWBC stations on 40m were weak with a lot of flutter and fade.