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HFU HF Underground > Loggings > Utility (Moderator: Beerus Maximus) > Aviation weather on 6950 USB?
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Author Topic: Aviation weather on 6950 USB?  (Read 1919 times)
Lex
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« on: April 23, 2012, 0222 UTC »
4/23/12, 6950 USB, 0215z: Aviation weather, Trenton military, seems identical to 6604 and 6754 aviation weather reports.  Fair via east coast remote SDR, inaudible here at home.

First time I've heard this on 6950.
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Unpleasant Frequencies Crew:
Snoopy: Palstar R30C & fugloop
Al: Sony ICF-2010 & RF Systems EMF
Roger: Magnavox D2935
(Archived off-air recordings.)
ChrisSmolinski
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« Reply #1 on: April 23, 2012, 1135 UTC »
Very interesting, I checked the SDR recording at 0215z, and nothing heard here in MD.
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Chris Smolinski
Westminster, MD
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« Reply #2 on: April 24, 2012, 0318 UTC »
Possibly a heterodyne image from something rusty and a local carrier?
(when my gutters in Winnipeg oxidized, CFB Shilo in MB would come in all over the band)

Peace!
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ChrisSmolinski
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« Reply #3 on: April 24, 2012, 1120 UTC »
Hmm... you had it on the SDR-14, Lex? Curious that I didn't have it on the netSDR. I do wonder if i was some sort of mixing product or image, as cmradio suggested?

I notice a spur/image/whatever from WWCR in the evenings on 6970, but I get it on both the netSDR and the NRD 545, so it seems to be "real" vs just heard on one radio.
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Chris Smolinski
Westminster, MD
JRC-NRD 545 / RF Space netSDR / 670 ft horizontal loop
Lex
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« Reply #4 on: April 26, 2012, 0132 UTC »
Quote from: ChrisSmolinski on April 24, 2012, 1120 UTC
Hmm... you had it on the SDR-14, Lex? Curious that I didn't have it on the netSDR. I do wonder if i was some sort of mixing product or image, as cmradio suggested?

I notice a spur/image/whatever from WWCR in the evenings on 6970, but I get it on both the netSDR and the NRD 545, so it seems to be "real" vs just heard on one radio.

Yup, via the SDR-14.  Didn't seem to be an image - that SDR seems bulletproof.  I did wonder whether it was a spur.  Haven't heard it on 6950 since that log the other day.
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Unpleasant Frequencies Crew:
Snoopy: Palstar R30C & fugloop
Al: Sony ICF-2010 & RF Systems EMF
Roger: Magnavox D2935
(Archived off-air recordings.)
ChrisSmolinski
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« Reply #5 on: April 28, 2012, 1440 UTC »
As it turns out... this is a receiver image in the SDR-14.  I decided to write up a short blog post about it:  http://www.hfunderpants.com/?p=882
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Chris Smolinski
Westminster, MD
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« Reply #6 on: April 29, 2012, 0321 UTC »
Solved! Grin
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ChrisSmolinski
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« Reply #7 on: April 29, 2012, 1521 UTC »
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Chris Smolinski
Westminster, MD
JRC-NRD 545 / RF Space netSDR / 670 ft horizontal loop
Lex
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« Reply #8 on: May 18, 2012, 0726 UTC »
Via SDR-14, same image from aviation weather audible on 6950 overnight while listening to the TIMIT phrase loops (logged elsewhere as "aggressive policeman", although I prefer to think of it as the greasy wash water station.  Or maybe the oily rag station.  Huh)
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Looking for Sealord's party mode switch on my radio.
Unpleasant Frequencies Crew:
Snoopy: Palstar R30C & fugloop
Al: Sony ICF-2010 & RF Systems EMF
Roger: Magnavox D2935
(Archived off-air recordings.)
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