[RFI] Mystery 70 cm Repeater Input RFI/EMI?

[digital-conjurers at roadrunner.com]

All I know is that it's USAF, it rotates, and it's mostly responsible for ATC.

Oh, and it's more like 46 miles...I checked the distance on Google.  I 
really doubt it's this...

Added mystery clue:  We just found out that the annoying crackle is mostly 
(if not always) absent after midnight.

  I was wondering if this could be some of the EMI/RFI generated by the new 
breed of solid-state watt/hour power meters we've heard about; they seem to 
have a potential for RFI @ 2 meters, but nothing heard about 440. 
(http://www.palomararc.org/Scope/oct07scope.pdf page 2)

If there's a utility that shuts down after midnight, then the power meter 
wouldn't be engaged...and no RFI...hmmmm.

-Lin/KJ6EF
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>What kind of radar is it?  If it's a phased-array type, it won't necessarily
>have any "sweep" pattern and could be semi random.  You are some distance
>from Beale so it's probably not their PAVE PAWS.
>
>Andy