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Author Topic: 43 meter band wide noise 2105 UTC 10 Mar 2013  (Read 2621 times)

Offline ChrisSmolinski

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43 meter band wide noise 2105 UTC 10 Mar 2013
« on: March 10, 2013, 2106 UTC »
Any idea what this is?

Chris Smolinski
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rdla4

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Re: 43 meter band wide noise 2105 UTC 10 Mar 2013
« Reply #1 on: March 10, 2013, 2157 UTC »
There was some discussion on the Glenn Hauser's email list, that HAARP was active around the band last week. But after going back and looking at the messages---they credit HFUnderground, and it was several days ago.
« Last Edit: March 10, 2013, 2159 UTC by rdla4 »

Offline Beerus Maximus

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Re: 43 meter band wide noise 2105 UTC 10 Mar 2013
« Reply #2 on: March 10, 2013, 2207 UTC »
I definitely am hearing this and it's very loud and annoying all throughout the 6900 KHz range and quite possibly beyond. It sounds like helicopter rotors beating the air.

In fact, I was listening to Powerliner on 6955 KHz and this stuff showed up, killing my reception. It's about S8 on 6955 at 2208 UTC.
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Offline Token

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Re: 43 meter band wide noise 2105 UTC 10 Mar 2013
« Reply #3 on: March 11, 2013, 2019 UTC »
Chris, how long does the noise last?  There is a 400 kHz wide sounder that wacks that portion of the band from time to time that presents a pattern like that on the waterfall, but it is on for aobut 2 minutes and off for 15 or so.

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T!
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Offline ChrisSmolinski

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Re: 43 meter band wide noise 2105 UTC 10 Mar 2013
« Reply #4 on: March 11, 2013, 2033 UTC »
This was on for much longer than 2 minutes at a time. Beerus may remember better than me, but I would say at least half an hour? Maybe longer?
Chris Smolinski
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Offline Beerus Maximus

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Re: 43 meter band wide noise 2105 UTC 10 Mar 2013
« Reply #5 on: March 12, 2013, 2343 UTC »
Seemed like it was on for at least 15 or 20 minutes.
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Offline Beerus Maximus

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Re: 43 meter band wide noise 2105 UTC 10 Mar 2013
« Reply #6 on: March 13, 2013, 0055 UTC »
The Helicopter noted again tonight, but in reduced signal strength and much more intermittent. On for 30-90 seconds, then off for a bit, then back on, it seems. Then changing to much longer durations of on-air. There's no clear pattern. Much lower signal strength now (in darkness) against my reception the other day (much louder, daylight) suggests a possible east coast origin.
« Last Edit: March 13, 2013, 0103 UTC by Beerus Maximus »
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Offline skeezix

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Re: 43 meter band wide noise 2105 UTC 10 Mar 2013
« Reply #7 on: March 13, 2013, 0343 UTC »
Hearing what sounds like a helicopter (in AM) from 9301 to 9358 and is of decent strength.  Mar 13, 2013 0342Z



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Offline skeezix

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Re: 43 meter band wide noise 2105 UTC 10 Mar 2013
« Reply #8 on: March 13, 2013, 1206 UTC »
Was reading an overnight digest (digest #5176 from Mar 13) from the dxld Yahoo! group and there was a message:

Quote
just noticed HAARP is active again on 8630 & 9330 with 50 khz wide signals 25 khz each side of center frequencies. just sounds like a fast radar.

DH KCMO


9330 stuck out as that's what I noticed around Mar 13th @ 0342Z.  Leads me to believe that the helicopter = HAARP.

A while back, zackers posted (http://www.hfunderground.com/board/index.php?topic=6326.0) how to tell if HAARP was operating. He said to look for wide blocks of yellow in their spectrum waterfall chart:
http://www.haarp.alaska.edu/data/spectrum2/www/hf.html

If that's the case, then can see that in the last 36 hours, around 0300-0400Z they were operating around 9300 & this morning around 8700. Which would be consistent with what I & DH (from dxld) heard.

In looking at the chart from Mar 10th, can see a little block of yellow near 7 MHz around 21Z. But, doesn't show up around 22Z when beerus heard it.
http://www.haarp.alaska.edu/cgi-bin/spectrum/getchart.cgi
« Last Edit: March 13, 2013, 1228 UTC by skeezix »
Minneapolis, MN

cmradio

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Re: 43 meter band wide noise 2105 UTC 10 Mar 2013
« Reply #9 on: March 13, 2013, 1303 UTC »
The one I heard last night on 43M went between fast scan and slow scan.... != HAARP methinks.

Peace!