[Lowfer] HiFERs Wednesday Afternoon

[JD]

Watched an odd thing happen this afternoon.  MP,USC, both SIWs, EH and NC 
were all very strong when I first tuned in.  About 4:03 PM CDT, it was as if 
16 or more dB of attenuation was switched in on both SIW signals 
simultaneously.  The attached image is just a sample of the transition.  A 
longer composite view showing the full SIW slant mode ID and aftermath is 
at:
http://lwca.org/mbarchiv/pix/13mar-hf.jpg

When the entire group was fully present, it produced the oddest beat notes 
you ever heard...mysterious minor chords resolving into others, then 
changing back, slowly and rythmically over and over.  It was as if Phillip 
Glass had written "Variations on a Theme by King Crimson"!

John 
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