[SADXA] Interesting DX

[Darrel]

I've been monitoring several VLF stations continuously for the last few 
months. I looked at my data records for October 9 around 1300- 1400 UTC. 
This is a summary of what I received in Tucson:

NWC 19.8 kHz, Australia: Strong signal, but nothing remarkable at that time.
NML  25.2 kHz, LaMoure North Dakota: Strong signal, nothing to note
NAU 40.75 kHz, Puerto Rico: Weak signal, but very steady and nothing 
remarkable
JJI 22.2 kHz, Japan: Strong signal, nothing to note
NLK 24.8 kHz, Jim Creek, Washington state: Strong signal. Possibly a 
weak glitch around 13:20 UTC, but comparable to the noise fluctuations.
NAA 24.0 kHz,  Cutler Maine: Strong signal, nothing to note
NPM 21.4 kHz, Hawaii: Weak signal, but nothing to note.

So, for what it's worth, I didn't notice any strong correspondence with 
the gamma-ray burst on any of these VLF paths.

Cheers,
      Darrel, aa7fv.

On 10/21/2022 10:37, Wes wrote:
> Further on this.  If you look a the map in this article it's claimed 
> that the propagation paths to the received VLF stations was enhanced 
> by the gamma ray radiation and signals outside the footprint were not 
> received.
>
> What intrigued me was the fact that AZ was on the edge of this 
> footprint and this was about the time of our sunrise.  So I put the 
> date and time in DX Atlas and opened a rectangular map.  Lo and 
> behold, his gamma ray radiation footprint coincides almost completely 
> with the solar nighttime footprint.  Coincidence?
>
> Wes
>
> On 10/21/2022 7:29 AM, Wes wrote:
>> https://spaceweatherarchive.com/2022/10/17/powerful-gamma-ray-burst-made-currents-flow-in-the-earth/ 
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