Digital QSO via Aurora

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Paul Kiesel

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May 28, 2022, 1:07:20 PM5/28/22
to PNWVHFS Google Group, AK-VHF, Jon Jones, UKSMG
Howdy All,

Yesterday afternoon and evening, the solar flux was at a level of five and sporadic E propagation was pretty much subdued around the PNW. Around 0145 UTC, W7FI alerted me to the presence of auroral signals on 50.313 MHz. I went down to the shack to check it out, as I had been hoping to complete a digital QSO via aurora for a number of years as just a personal quest, so to speak. I had been thinking that I would need to use JT4 to do it, since JT4 has been effective in decoding EME signals at 10 GHz and higher. At those frequencies EME signals tend to be fluttery like auroral signals.

When I got to the shack, I found an auroral signal on 313. It was not decoding via FT8. I turned the antenna to get the best signal strength. I found it best at a heading of 43 degrees. When I got the antenna to that place, the signal, which was a hiss, decoded and it was VE7DAY calling CQ. I called, but John didn't reply. I called him on the land line. He said he only heard a strong noise that didn't decode. We tried again and then John did get decodes and we quickly completed a QSO.

For PNWVHFS Distance Scoreboard purposes, this contact is a record setter for 50 MHz, Digital, Auroral at 336.7 km distance. As far as I know, it is the first claimed digital auroral QSO to have been made on the VHF bands. Not that it is all that significant, but it is notable.

I made an entry onto the PNWVHF Distance Scoreboard. (Don't forget to refresh)

We are into the spring/summer sporadic E season and some interesting DX contacts have already been made on six meters. The rules for PNWVHFS members submitting a distance record claim are listed on the Distance Scoreboard page. Good DXing!


73, Paul K7CW

Dave B.

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May 28, 2022, 2:45:54 PM5/28/22
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Very interesting Paul. Could show the way for other paths via the Arctic
Region.

    de Dave, N7DB CN85uj


--
David Bernhardt
Boring, OR

Paul Kiesel

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May 28, 2022, 3:43:18 PM5/28/22
to uk...@groups.io, PNWVHFS Google Group, AK-VHF, Jon Jones
Thanks, Chris. We'll try Q65 next time.

73, Paul K7CW

On Saturday, May 28, 2022, 11:31:54 AM PDT, Chris G4IFX <g4...@uksmg.org> wrote:


Fascinating, Paul, and well done. For info,  ac while ago I asked Joe Taylor which modes might work better than FT8 on aurora and he suggested one of the wider spaced Q65 variants would cope with it well. Might try it one of these days!
73
Chris
G4IFX
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Lance Collister, W7GJ

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May 28, 2022, 5:30:18 PM5/28/22
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I understand people in the TEP Zone also have had some good success with Q65 on
warbly TEP signals... GL and VY 73, Lance

On 5/28/2022 19:43:16, Paul Kiesel via groups.io wrote:
> Thanks, Chris. We'll try Q65 next time.
>
> 73, Paul K7CW
>
> On Saturday, May 28, 2022, 11:31:54 AM PDT, Chris G4IFX <g4...@uksmg.org> wrote:
>
>
> Fascinating, Paul, and well done. For info,  ac while ago I asked Joe Taylor which
> modes might work better than FT8 on aurora and he suggested one of the wider spaced
> Q65 variants would cope with it well. Might try it one of these days!
> 73
> Chris
> G4IFX
>
> On Sat, 28 May 2022, 18:08 Paul Kiesel via groups.io <http://groups.io>,
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--
Lance Collister, W7GJ(ex WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX, 3D2LR, 5W0GJ, E6M, TX5K, KH8/W7GJ, V6M, T8GJ, VK9CGJ, VK9XGJ, C21GJ, CP1GJ, S79GJ, TX7MB, TO7GJ)
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2m DXCC #11 - 6m DXCC #815 - FFMA #7

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