Any ideas what this could be?
36 Mhz freq hopping video by mancow_photos | Photobucket
It seems to run forever and varys in signal strength at times. It's not artifacts from my wireless router, I unplugged it. It's not IF leakage from other receivers. I turned those off as well. It is strong enough to register S3 pulses at times on my FT-897. It is constrained to that frequency range only and truly does appear to be random.
The antenna is a DPD Productions log periodic on the roof about 20ft above ground level. I live about 40 miles SW of Kansas City and the antenna points toward KC. I can't imagine what system would use a signal like this or what type of equipment would generate that unintentionally. I haven't yet tried going mobile to see if I can track down the source.