开云体育

Good evening: Thanks to Tom for the heads-up. I am sad to say that at my location I could locate only a smudge. Here it is. Thanks. John

Good evening...here are 3 spectrograms. Frankly I don't know what to make of the first at 1040 UTC which is about 2 hours before local sunrise... Clearly a very active day but my simple antenna I can't discriminate separate events. ....bill.....

I think there is a Type IIIb solar radio storm in progress. See attached spectrograms. - Tom AI Overview Learn more A Type IIIb solar radio burst storm refers to a prolonged series of Type IIIb bursts, which are fine frequency structures within Type III bursts. Type III bursts are caused by energetic electrons traveling along magnetic field lines away from the Sun, and Type IIIb bursts are believed to be associated with density inhomogeneities in the background plasma.

Claudio Madrid

Some surprisingly strong Cas A scintillation for this time of year. Beats me why it's stronger in LCP. Might be due to Cas A being in a side lobe instead of the main beam. -- Dave

Good day all, Picked up some "Diamond Ionosondes", ground wave reflections, broken equipment? Thoughts? Carl Wasilla, AK

Good evening: Some solar from today. John

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.....

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

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

Good evening... Only one event captured but quite unusual....bill...

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...

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. Virus-free.www.norton.com

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 http://radiosky.com

Good evening: Finally, a bit of solar from today. John