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Loggings => Utility => Topic started by: Zoidberg on April 23, 2012, 0222 UTC

Title: Aviation weather on 6950 USB?
Post by: Zoidberg 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.
Title: Re: Aviation weather on 6950 USB?
Post by: ChrisSmolinski on April 23, 2012, 1135 UTC
Very interesting, I checked the SDR recording at 0215z, and nothing heard here in MD.
Title: Re: Aviation weather on 6950 USB?
Post by: cmradio 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!
Title: Re: Aviation weather on 6950 USB?
Post by: 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.
Title: Re: Aviation weather on 6950 USB?
Post by: Zoidberg on April 26, 2012, 0132 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.
Title: Re: Aviation weather on 6950 USB?
Post by: ChrisSmolinski 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 (http://www.hfunderpants.com/?p=882)
Title: Re: Aviation weather on 6950 USB?
Post by: cmradio on April 29, 2012, 0321 UTC
Solved! ;D
Title: Re: Aviation weather on 6950 USB?
Post by: ChrisSmolinski on April 29, 2012, 1521 UTC
(http://www.hfunderpants.com/mypics/alien_images.png)
Title: Re: Aviation weather on 6950 USB?
Post by: Zoidberg 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" (http://www.hfunderground.com/board/index.php/topic,7188.0.html), although I prefer to think of it as the greasy wash water station.  Or maybe the oily rag station.  ???)