[RFI] need ideas on hunting down QRN-like noise source -.wav files

[Scott Ginsburg]

Randy,

	What sounds like static crashes is the noise.
If I hadn't been hearing this every day for over a month
I too would think it's normal summer static atmospheric
noise.

					73,
					Scott


WX5L wrote:
> WAV files sounds like normal summer time thounderstorms. My receiver sounds
> like that just about every summer day.  Is the noise below the static
> crashes?
> 
> 73,
> Randy
> 
> 
> ----- Original Message ----- 
> From: "Dale J." <dj2001 at mn.rr.com>
> To: "Scott Ginsburg" <k1oa at comcast.net>
> Cc: <rfi at contesting.com>
> Sent: Wednesday, June 16, 2004 6:37 PM
> Subject: Re: [RFI] need ideas on hunting down QRN-like noise source -.wav
> files
> 
> 
> 
>>Sounds like electrical storm static. Otherwise I don't know, never
>>heard anything like that at my QTH.  Would be good if you could ID it.
>>
>>Dale, K9VUJ
>>
>>
>>On Jun 16, 2004, at 18:21, Scott Ginsburg wrote:
>>
>>
>>>Alex, KR1ST, has done me a huge favor by posting
>>>a couple of .wav files on his website which contain
>>>about 10 seconds each of my HF noise, one recorded
>>>on AM, the other on upper sideband.
>>>
>>>They are:
>>>
>>>http://www.kr1st.com/k1oa/k1oanoise-20M-AM-6-15-04.wav
>>>http://www.kr1st.com/k1oa/k1oanoise-20M-USB-6-15-04.wav
>>>
>>>If anyone needs longer samples please let me know and
>>>I can generate another file.
>>>
>>>tnx and 73,
>>>Scott, K1OA
>>>
>>>
>>>
>>>>Can you record this noise at it's worse and put it in a .wav file so
>>>>we can
>>>>listen to it. Hearing it can give us some ideas.
>>>>----- Original Message ----- From: "Scott Ginsburg" <k1oa at comcast.net>
>>>>To: <rfi at contesting.com>
>>>>Sent: Monday, June 14, 2004 8:50 PM
>>>>Subject: [RFI] need ideas on hunting down QRN-like noise source
>>>>
>>>>>I'm currently plagued with two sources of HF RFI, and for the
>>>>>moment am concentrating on locating one of them. Any help
>>>>>I can get from the RFI sleuths on the list would be greatly
>>>>>appreciated!
>>>>>
>>>>>The noise in question showed up about a month ago, and appears
>>>>>as a combination of white noise and random, rapid static crashes.
>>>>>The static crashes, or bursts, sound a lot like heavy QRN.
>>>>>
>>>>>It is typically the loudest on 14 MHz, and can be heard from 7-24 MHz
>>>>>when it's at its worst, with peaks on 14 MHz of 10 over S9. I hear no
>>>>>buzzing when listening on AM. My noise blanker has no effect.
>>>>>
>>>>>Its presence can't be correlated with weather. I hear it on both wet
>>>>>and dry days, wind or no wind.
>>>>>
>>>>>It seems to peak from a certain direction when I listen on my HF log
>>>>>periodic. I've driven the neighborhood streets (up to 2 mi away)
>>>>>with my
>>>>>706 and hamstick in the car and can hear what I think is the noise in
>>>>>certain locations, but never loud enough to be a "smoking gun". I
>>>>>verified it's not coming from my house, by killing power and
>>>>>listening
>>>>>in the driveway on my 706 to the noise.
>>>>>
>>>>>Early morning is typically very quiet. At 6:30 AM local time I
>>>>>usually
>>>>>hear only silence, or a few weak bursts of noise which sound like the
>>>>>problem. It typically peaks by noon. I almost always hear it in the
>>>>>evening and at night.
>>>>>
>>>>>Any hints anyone might have as to what a possible source might be or
>>>>>the best way to continue trying to track this down would be
>>>>>appreciated.
>>>>>
>>>>>                                                 73,
>>>>>                                                 Scott, K1OA
>>>>>
>>>>>
>>>>>_______________________________________________
>>>>>RFI mailing list
>>>>>RFI at contesting.com
>>>>>http://lists.contesting.com/mailman/listinfo/rfi
>>>>
>>>
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>>>RFI mailing list
>>>RFI at contesting.com
>>>http://lists.contesting.com/mailman/listinfo/rfi
>>>
>>
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> 
> 
>