Aurora snippets

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Aurora snippets

Postby VK2KRR » Wed Mar 07, 2012 9:12 pm

Just noticing some Aurora scattering now on Brian VK5BC and Rob VK5ZRL 160m WSPR signals.
160mAU.JPG
160m AU

Notice the signal smearing/spreading about 90 Hz either side of the main 6 Hz signal (only on the WSPR interface).
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Re: Aurora snippets

Postby VK2KRR » Wed Mar 07, 2012 9:59 pm

Just testing with Brian VK5BC on 40m WSPR with signals, me RXing beaming toward the Aurora
40m scattering.JPG
40m scattering

You can see, esp on the Spect Lab (red display) where from bottom upward I was beaming toward Aurora, then part way through last transmission I moved the yagi 90 deg to be beaming direct at Brian and the side spread of the signal disappeared and was able to decode then. Also see in the WSPR display when I turned his was the white in the center of his signal indicating signal getting VERY strong.
On the WSPR interfacet at 1140 utc Brian was running 50W you can see wider looking spread on the signal.
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Re: Aurora snippets

Postby VK2KRR » Wed Mar 07, 2012 10:11 pm

Here is a good image showing Aurora scattering/doppler shifting of Hamilton TV signal
tv9mod.jpg
Hamilton TV Aurora VK2KRR

I should add that this was taken similar date to Rexs image.
Last edited by VK2KRR on Thu Mar 08, 2012 9:16 am, edited 1 time in total.
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Re: Aurora snippets

Postby VK2KRR » Wed Mar 07, 2012 10:19 pm

ZL TV Aurora Received by Rex VK7MO
ZL TV 2 to 8pm 27 July 2004.jpg
VK7MO AU
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Re: Aurora snippets

Postby VK2GOM » Thu Mar 08, 2012 8:52 am

Interesting... what is the software used? I Googled 'Scan Input' with not much success.

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Re: Aurora snippets

Postby VK2KRR » Thu Mar 08, 2012 9:12 am

Rob good question, we may need vk7mo to answer that. I think I had the program on my old computer, but can't remember what it is. But u can set it to monitor over very long time frames.
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Space storm

Postby ZL3MH » Thu Mar 08, 2012 2:45 pm

Have a look at the below URL

http://www.abc.net.au/news/2012-03-08/e ... rs/3875508


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Re: Aurora snippets

Postby VK2KRR » Thu Mar 08, 2012 5:53 pm

Thanks Murray.
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Re: Aurora snippets

Postby VK2KRR » Sun Mar 11, 2012 11:11 pm

Here is some scattering on VK5ZRL 6m WSPR signal this evening.
6m AU.JPG
VK5ZRL 6m AU
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Re: Aurora snippets

Postby VK5ZRL » Sun Mar 11, 2012 11:25 pm

Here is a capture of 6m auroral scattering on VK2KRR wspr signal.
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6m_scatter.gif
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Re: Aurora snippets

Postby VK5ZRL » Mon Mar 12, 2012 2:13 pm

I noticed this signal on the WSPR display, it shows evidence of auroral fluttering.
Anyone seen this before ??
Could it be a TV signal ?
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6m.gif
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Re: Aurora snippets

Postby VK2GOM » Mon Mar 12, 2012 4:31 pm

Hi Rob, not entirely sure what that is. It doesn't seem to exhibit the characteristic 'spreading' or 'smearing' of auroral activity.

It looks more like a signal source with multiple peaks across the monitored portion of the spectrum that has some weird drift going on. Everything is drifting in sync, albeit at non-linear rates.

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Re: Aurora snippets

Postby VK5ZRL » Sat May 26, 2012 5:21 pm

Hi Rob,
I have finally figured out what that signal is of the screenshot I posted above.

It is a local warbler sort of signal (data maybe) which tends to drift all over the place
between 50.290 and 50.300. It can be rather frustrating at times as it drifts in and
out of the wspr passband.

It appeared today and I was lucky (or unlucky !) enough to be able to hear it..
AARGHH !
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Re: Aurora snippets

Postby VK5ZRL » Sat Sep 29, 2012 8:37 pm

Hi,

Here is a screenshot of auroral spread on 40m WSPR signals.
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40m_au.gif
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