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Sticky Welcome to Radio JOVE 2.0 3
Dear Radio JOVE Community, The Radio JOVE Project is a NASA Partner citizen science project where participants purchase, assemble, and operate their own 16-24 MHz radio spectrograph to observe solar, Jupiter, Galactic, and Earth-based radio emissions. Learn to become a citizen scientist and contribute scientific-quality data to our data archive. Visit Getting Started to learn how to participate in Radio JOVE. Regards, The Radio JOVE Team
Started by Chuck Higgins @ · Most recent @
Now for something completely different.... 3
Good day all, Picked up some "Diamond Ionosondes", ground wave reflections, broken equipment? Thoughts? Carl Wasilla, AK
Started by Carl Pajak Phone @ · Most recent @
Solar 05/26/2025 Easley, South Carolina 3
Good evening: Some solar from today. John
Started by AOL @ · Most recent @
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.....
Started by bsneed1@... @
SID, 25/05/2025, 2
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
Started by salvador aguirre @ · Most recent @
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
Started by AOL @
Solar Event 25 May 2025, Prospect, ME
Good evening... Only one event captured but quite unusual....bill...
Started by bsneed1@... @
Solar Events, 24 May 2025, Prospect, ME 6
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...
Started by bsneed1@... @ · Most recent @
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. Virus-free.www.norton.com
Started by Luke Murphy @
Solar Activity reported by this group. 9
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
Started by Jim Sky @ · Most recent @
major flare. posible X 0202 UT May 25 2025
Possible X flare happening now - Tom
Started by Thomas Ashcraft @
LINEARITY - MEASUREMENTS 7
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
Started by W0LEV @ · Most recent @
Solar 05/24/2025 Easley, South Carolina 3
Good evening: Finally, a bit of solar from today. John
Started by AOL @ · Most recent @
The FFT and nuclear weapons 5
Here's a very interesting explanation of how and why the modern FFT came to exist in the 1960s, then we discover that Gauss had already invented it, but never published it. Veritasium - The Most Important Algorithm of All Time https://www.youtube.com/watch?v=nmgFG7PUHfo -- Dave
Started by Dave Typinski @ · Most recent @
Views of the Solar "Storm" from the Dark Sky Observatory May 13, 2025 45
Here are some views of the fantastic solar earlier today from the Dark Sky Observatory. The first shows the entire "storm", and the remaining spectrographs show some of the details. Richard
Started by Richard Gray @ · Most recent @
Solar 05/20/2025 Easley, South Carolina 3
Good evening: All I have to offer are two weird solar emissions. I think they are solar because both coincide with characteristic spikes on Skypipe. Did anyone else see them? John
Started by AOL @ · Most recent @
Calibration curve using RSP1B 5
Hi folks, I too am having trouble getting a good Cal curve. Using the standard Radio JOVE setup with the RSP1B receiver. I managed to get a decent Cal curve using these settings: RF Gain = 9 IF Gain = -45dB Visual Gain = -40 dB SDRc2RSS Gain = 2.0 Not quite linear, but not too bad. I did not adjust the Visual Gain per Richard¡¯s comment below, but maybe I don¡¯t understand it either. See screenshot below. Chuck
Started by Chuck Higgins @ · Most recent @
Not mutch recieved on our latitude
Hi All, A weak signal from Io-B - not mutch but a signal - I think ! -- Aloha - john s,
Started by john sommer @
SunBurst Europa
Hi All, A minor sunburst over denmark latitude 55! Not much but it?s there -- Aloha - john s,
Started by john sommer @
Solar Events 19 May 2025, Prospect, ME
Good evening....two weak events....maybe A lot of strong, local lightning recently. Off-topic...many evenings after submitting an events' report I'll turn on my ham radio and spend some time using FT-8 (digital mode) on the various bands starting at 10m (28.0 Mhz) then 12 m (24.9 Mhz), 15m (21.0 Mhz),....18Mhz, 14Mhz...down to 3.6Mhz. The last few evenings here from 28 to 18 Mhz I have heard & contacted almost no stations ANYWHERE....quite unusual. Fun with radio.
Started by bsneed1@... @
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