[SADXA] Interesting DX

[Wes]

Hi Darrel,

I thought I might hear from you.  Interesting observations.

What equipment are you using for this?  I have a Perseus SDR that I thought I 
couldn't live without but it's just sitting here.  I know a lot of LF SWLs seem 
to like them.  Maybe I could put it to use.  How are you switching frequencies 
and what is your antenna?

Wes

On 10/21/2022 11:30 AM, Darrel wrote:
> 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/ 
>>> ______________________________________________________________
>>> SADXA Website http://www.sadxa.org
>>
>> ______________________________________________________________
>> SADXA Website http://www.sadxa.org
>>
>> SADXA mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/sadxa
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:SADXA at mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net
>> You can support qsl.net: http://www.qsl.net/donate.html
>