Re: Now for something completely different....
Thanks Jim, I was believing that may have been the case.? I have just started using SDRConsole and am still doing some tweeks to the setting for my location.? I have the gain down past the "recommended" setting.? Seems to only occur during the predawn, at my location, hours... Carl
Hi Carl, I have seen similar things and found they were due to the front end of my SDRPlay being overloaded, probably at a frequency outside the range of the spectrograph.? When I increased the front?end attenuation the "backward" ionosonde image largely disappeared. Jim
On Sun, May 25, 2025 at 8:36?AM Carl Pajak Phone via <pajakonice= [email protected]> wrote: Good day all,
Picked up some "Diamond Ionosondes", ground wave reflections, broken equipment? Thoughts?
Carl Wasilla, AK
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Re: Solar 05/26/2025 Easley, South Carolina
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On Monday, May 26, 2025, 8:09 PM, salvador aguirre via groups.io <drsaguirre@...> wrote: Hi John,
?
some events here..
?
Salvador
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Re: Solar 05/26/2025 Easley, South Carolina
Hi John,
?
some events here..
?
Salvador
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Solar Events 26 May 2025, Prospect, ME
Good evening.....Two events captured...
For whatever it's worth, we were watching the local broadcast news on channel 5 (76-82 Mhz) at about 2100 UTC/1700 EDT this afternoon and the picture was frequently pixelated for a few seconds at a time. The transmitter is only about 40 miles from our house "as the crow flies". The ionosphere seem to be quite disturbed.
.....bill.....
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Solar 05/26/2025 Easley, South Carolina
Good evening: ? ? ?Some solar from today.
John
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Re: Now for something completely different....
Hi Carl, I have seen similar things and found they were due to the front end of my SDRPlay being overloaded, probably at a frequency outside the range of the spectrograph.? When I increased the front?end attenuation the "backward" ionosonde image largely disappeared. Jim
On Sun, May 25, 2025 at 8:36?AM Carl Pajak Phone via <pajakonice= [email protected]> wrote: Good day all,
Picked up some "Diamond Ionosondes", ground wave reflections, broken equipment? Thoughts?
Carl Wasilla, AK
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Hi.
I think I caught a SID resulting from a class M 8.9 solar eruption from the solar active region number 4098 with a maximum at 16:31 hrs UT.
?
Salvador
?
?
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Solar SiD 05/25/2025 Easley, South Carolina
Good evening: ? ? ?I am calling this a Solar/SID. Coincides in time with Bill's capture. Thanks Bill. There seems to be definite signal drop. There are several GOES X-ray flux spikes for 05/25/2025. The first one I suspect is the X flare that Tom alerted us about. Sun already down here. Thanks Tom. Did you see it at your place? There is a spike that seems to coincide with the captures attached to this email. Welcome all comments.
John
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Hi.
I think I caught a SID resulting from a class M 8.9 solar eruption from the solar active region number 4098 with a maximum at 16:31 hrs UT.
?
Salvador
?
?
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Solar Event 25 May 2025, Prospect, ME
Good evening...
Only one event captured but quite unusual....bill...
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Now for something completely different....
Good day all,
Picked up some "Diamond Ionosondes", ground wave reflections, broken equipment? Thoughts?
Carl Wasilla, AK
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Re: Solar Events, 24 May 2025, Prospect, ME
Good catch Dave!
I'd forgotten about the CQ DX contests and I NEVER use cw.....bill....
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Solar Flare 01:49UTC Tasmania, Australia
Hi, ?????? This is around the same time frame as the reported X1.1 (R3) flare. Some faint downward drifting features and RF fadeout. No data available from Learmonth, some activity seen on the Owens Valley 80MHz range spectrogram. ? Would been keen to see if someone else observed this. ? ? 
? ? Regards, ??????????????????? ?Luke.
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Re: Solar Activity reported by this group.
Hej bent,
Synes du skulle se dette fra? Chuck, Larry, Dave and Jim Sky mf.
Hvordan de bejarbejder de indhentede sol data og pr?senterer dem I grafer.
Bwt, dit Windows problem kan Jeppe m?ske bist? med.
Bh john s.
Aloha john s.
ing.john sommer HD-I?
l?nnevang 12, 4180 sor?
4078-6158
How bought a peer reviewed "real" science paper instead?
Chuck, Looks like that could be written up as a good Citizen Science project.?
Hi Chuck, I am sure that what your students did was more accurate.?As the number of observers has grown so would the total observation number for any given week, as I am just using the number of reported?observations.? It is very rough.?? Jim
On Fri, May 23, 2025 at 10:55?AM Chuck Higgins via <Chuck.Higgins= [email protected]> wrote:
Hey Jim and all,
?
? This is fantastic. AI and a good human brain -- to double-check the AI brain -- are going to
be game changers in research and data analysis. This is a great example. I¡¯m trying to get
my student to write some python code to help count solar bursts, and we¡¯ve had some success,
but not yet good enough.
??This is my old-fashioned method of using students (they were paid) to count solar bursts
on Radio-Skypipe records from 2005 to 2018. Again, trying to get a student to bring this
graph up to date but it¡¯s slow going.
?
Cheers,
?
Chuck
?
?
Below is a chart showing reported solar activity by this group since it started.? This was done with ChatGPT's help and only includes new posts with an image and using keywords. It is just an approximate value.? The idea was to see if our
activity on this group approximates the solar activity (using sunspot number because it was easy to get) and as an exercise for me to see if something might be done to facilitate archiving these curated reports.? ?All of the activity of this group was downloaded
as a single 12 GB mbox file which was then used to produce a single filtered CSV file.? GPT then analyzed the CSV file and produced a python program the does the histogram.??
Jim Sky?
radiosky at radiosky dot com
--
Aloha - john s,
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Re: Solar Events, 24 May 2025, Prospect, ME
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On Saturday, May 24, 2025, 10:52 PM, Dave Typinski <davetyp@...> wrote: Since it's at the bottom of the 15m band plan, it's probably CW or RTTY or
Digital.? Could be this CW contest:
--
Dave
On 5/24/25 19:52, bsneed1 via groups.io wrote:
> Good evening...
> Just two events captured today.
> The persistent, very strong signal at about 21 Mhz is odd/weird. There are no
> American (ARRL) amateur radio contests in May that might explain it.
> ...bill...
>
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Re: Solar Events, 24 May 2025, Prospect, ME
Since it's at the bottom of the 15m band plan, it's probably CW or RTTY or Digital. Could be this CW contest:
--
Dave
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On 5/24/25 19:52, bsneed1 via groups.io wrote: Good evening...
Just two events captured today.
The persistent, very strong signal at about 21 Mhz is odd/weird. There are no
American (ARRL) amateur radio contests in May that might explain it.
...bill...
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major flare. posible X 0202 UT May 25 2025
Possible X flare happening now - Tom
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Re: Solar Events, 24 May 2025, Prospect, ME
Bill and John: ? ? ? ? Prominent 21 MHz signal is here too. Seems widespread. It was there several weeks ago, but then happily disappeared. Uncertain cause. Anyone with thoughts? Thanks.
On Saturday, May 24, 2025, 7:52 PM, bsneed1 via groups.io <bsneed1@...> wrote: Good evening...
Just two events captured today.
The persistent, very strong signal at about 21 Mhz is odd/weird. There are no American (ARRL) amateur radio contests in May that might explain it.
...bill...
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Re: LINEARITY - MEASUREMENTS
I was and am using "Average".
Dave - W?LEV
Hi Dave,
What detection mode are you using in Radio-SkyPipe???
I was intrigued by the calibration of the standard RJ setup.? While I do not use that setup, I decided to measure what I use for other purposes, including RJ.? So, have a read of the attachment.? I'm using the AirSpy Discovery HF+ to test the linearity.? The system is diagrammed to start and then, I ran an HP generator up by 10 dB steps ultimately into Radio SkyPipe.? I was somewhat disappointed at the non-linear behavior of the system.? Please have a read of the attachment.
CONCLUSION:? Yes, calibration is needed if linear response to the input is required!!!
Dave - W?LEV
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Re: Solar 05/24/2025 Easley, South Carolina
Salvador: ? ? ? Indeed you do. Thanks.
On Saturday, May 24, 2025, 8:43 PM, salvador aguirre via groups.io <drsaguirre@...> wrote: Hi John
?
I think I have your events but they are very weak.
?
Salvador
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Carl Pajak Phone
salvador aguirre
john sommer
Dave Typinski