Solar 05/16/2025 Easley, South Carolina
Good evening: ? ? ?Solar from today.
John
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Re: Solar and RF fadeout North Tasmania, Australia
Thank you, Larry ? I will often compare my observations with data from Learmonth (relatively nearby) to at least corroborate them. In this case the comparison is quite interesting. I was hoping to compare to 18GHz range from Owens Valley as well, unfortunately no data is available for that period. ? Kind Regards, ? Luke. ? ? ?
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From: [email protected] <[email protected]> On Behalf Of Larry Dodd via groups.io
Sent: Thursday, May 15, 2025 1:26 AM
To: [email protected]
Subject: Re: [Radio JOVE] Solar and RF fadeout North Tasmania, Australia? Very interesting observation Luke. Your microscopic 8 Mhz spectrograph shows a lot of detail missing in the extremely wide bandwidth Learmouth spectrograph. The solar event at a very high frequency (-100Mhz) is centered on the HF fade out shown in your spectrgtoph and at the bottom of the Learmouth spectrograph. Your observation is an excellent example of comparing a narrowbandwidth to an extremely wide bandwidth.? Thank you for your observation. ? On Wed, May 14, 2025 at 8:30?AM Luke Murphy via <lukepmurphy=[email protected]> wrote: Hi, ?????? Some weak solar and RF fade out. Also see comparison from Learmonth observatory around the same timeframe. ? ? ?  ?? 
? ? Regards, ? ??????????????????Luke.
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Re: Views of the Solar "Storm" from the Dark Sky Observatory May 13, 2025
Tyson? Be sure your using the fastest direct USB port on your computer. Avoid using a USB hub.? Close any programs that may be running.? Use the shortest and best USB cable you have. .
This video may help.
Larry K4LED V
On 5/16/2025 20:47:19, Tyson Sapre via groups.io <tyson.sapre@...> wrote: Thanks Larry.? I was able to perform the RX-888 to RSS via SDR console and so far it has worked quite well but I've just been testing at home so far and haven't tried it on our setup in Finksburg, MD yet.? Only issue is crashing if I push the bandwidth over a range of 16 Mhz, actually even then it's not ideal but it seems to work.? 8 Mhz seems to be the most stable range.??
Tyson On Thu, May 15, 2025 at 10:55?PM Larry Dodd via <101science= [email protected]> wrote: Tyson The instructions for using the RX888 with SDR Condole and SDRc2RSS can be found on the Radio JOVE WIKI page. We support that method.? Larry K4LED On Thu, May 15, 2025 at 9:01?PM Tyson Sapre via <tyson.sapre= [email protected]> wrote: Hi everyone,
I recently purchased an RX-888 and was wondering if there are instructions on how to run rx2fits code within Linux.? I know how to install Linux but maybe there is a distro that is best.? Open to any tips/suggestions.? Thanks!
Tyson
Hi Sabine,
?
We are working on that.? We have located a Linux computer and have installed rx2fits.? Next step is to figure out how to run the calibrator at the same time as rx2fits.? Have you done that?? I imagine one just needs to write a python program on linux to communicate with the calibrator, but we haven't done that yet.? Now that exams are finished, we will have more time.
?
Best wishes,? Richard
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Re: Views of the Solar "Storm" from the Dark Sky Observatory May 13, 2025
Thanks Larry.? I was able to perform the RX-888 to RSS via SDR console and so far it has worked quite well but I've just been testing at home so far and haven't tried it on our setup in Finksburg, MD yet.? Only issue is crashing if I push the bandwidth over a range of 16 Mhz, actually even then it's not ideal but it seems to work.? 8 Mhz seems to be the most stable range.??
Tyson
On Thu, May 15, 2025 at 10:55?PM Larry Dodd via <101science= [email protected]> wrote: Tyson The instructions for using the RX888 with SDR Condole and SDRc2RSS can be found on the Radio JOVE WIKI page. We support that method.? Larry K4LED On Thu, May 15, 2025 at 9:01?PM Tyson Sapre via <tyson.sapre= [email protected]> wrote: Hi everyone,
I recently purchased an RX-888 and was wondering if there are instructions on how to run rx2fits code within Linux.? I know how to install Linux but maybe there is a distro that is best.? Open to any tips/suggestions.? Thanks!
Tyson
Hi Sabine,
?
We are working on that.? We have located a Linux computer and have installed rx2fits.? Next step is to figure out how to run the calibrator at the same time as rx2fits.? Have you done that?? I imagine one just needs to write a python program on linux to communicate with the calibrator, but we haven't done that yet.? Now that exams are finished, we will have more time.
?
Best wishes,? Richard
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Re: Views of the Solar "Storm" from the Dark Sky Observatory May 13, 2025
Hi Huub,
?
I would be interested in how you did the calibration with SDRconsole on the RX-888.? My student and I (we have both built a calibrator) went out to the antenna site yesterday and attempted a calibration.? By adjusting the gain on the SDRc2RSS program we were able to get the top of the curve at the upper right hand part of the graph, but we did not succeed in getting the beginning of the curve at the bottom lefthand corner (see attached).?? We had to adjust the "visual gain" all the way down to -30dB and then we also lowered the HF gain (both on SDRconsole), but that did not succeed in getting a full calibration.? What adjustments did you use on SDRc2RSS and SDRconsole to get a calibration?
?
Having said that, the present calibration is much better than we started with.? When we ran the calibrator with the "default" settings for SDRconsole and SDRc2RSS we were using only about 1000 ADU.? Now we are using about 3000.? But we would like to use the full 4096!
And then we want to make some progress on rx2fits to see if we can utilize the full 16-bits the RX-888 is capable of!
?
Richard
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Isn't this about the time that Bones tells
Kirk, "he's dead Jim."
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Re: Solar SID 05/15/2025 Easley, South Carolina
Bill: ? ? ?I appreciate all your efforts! The darkening at the appropriate time and the signal drop-out is suggestive. Checking the radio signals was a great idea. Let¡¯s see if anyone else observed anything. I will keep you posted. Thanks again.
On Friday, May 16, 2025, 8:32 AM, bsneed1 via groups.io <bsneed1@...> wrote: Good morning John...
?
I see nothing like your first frame here but between the events at about 1715:50 and those at about 1727:30 there is a general "darkening". The WWV signal becomes interrupted but 17 &15m ham bands aren't and the international SW signals at 17 Mhz all but disappear.
Don't know what to make of it.....
.....bill......
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?
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Re: Solar SID 05/15/2025 Easley, South Carolina
Good morning John...
?
I see nothing like your first frame here but between the events at about 1715:50 and those at about 1727:30 there is a general "darkening". The WWV signal becomes interrupted but 17 &15m ham bands aren't and the international SW signals at 17 Mhz all but disappear.
Don't know what to make of it.....
.....bill......
?
?
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Good Day All,
Captured a group of solar events...
Carl Wasilla, AK
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Re: Views of the Solar "Storm" from the Dark Sky Observatory May 13, 2025
Hi Richard,
?
I did a calibration on the rx888 setup with sdr-console.?
?
I was thinking of using the calibrator controlled by rss (windows) with rx888 and rx2fits (linux) at the receiving end. As far as I know rx2fits doesn't support a calibration file like rss does so it would be ?based only on max and minimum calibration points.
?
I think it could be done this way. start rx2fits, start the calibrator, stop rx2fits, convert the resulting fits file with rx2fits2rss and check the results in RSS ?(colour bars). Then change the relevant settings in the rx2fits configuration file. By repeating this several times you should have a (semi) calibrated setup.
?
I didn't try this but will in a couple of days to see if this theory works.
?
Huub
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Re: Views of the Solar "Storm" from the Dark Sky Observatory May 13, 2025
Hi Jim,
?
rx2fits2rss is a program developed by Sabine (and me as the sidekick) It is able to convert the fits files created by rx2fits (from Nathan) to Radio sky Spectrograph compattible format. It also can convert fits files to rss which are readable with Autoplot.?
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This way you can use the rx888 MKII and analyse the recordings with RSS or autoplot.
?
Huub
?
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Re: Views of the Solar "Storm" from the Dark Sky Observatory May 13, 2025
On Fri, May 16, 2025 at 02:25 AM, Jim Sky wrote:
Sabine,
what is rx2fits2rss?? I see Nathan's rx2fits project.? So does this convert FITS to RSS ?
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Jim,
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rx2fits2rss is a Python script that Huub and I wrote to convert rx2fits spectral data from FITS format to RSS format. We wrote to you a few months ago with the rather nonsensical question of whether you could extend the spectral bandwidth of RSS to 1024 channels. Perhaps you remember.
?
?
We would be happy to present the script here. But perhaps it belongs in another RJ forum on software development (like the SDR stuff is outsourced to radio-jove-sdr-soft-dev). That's up to you to decide.
?
Sabine
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Germany
Standard time: UTC +1 hour
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Re: Views of the Solar "Storm" from the Dark Sky Observatory May 13, 2025
On Fri, May 16, 2025 at 12:46 AM, Richard Gray wrote:
We have located a Linux computer and have installed rx2fits.? Next step is to figure out how to run the calibrator at the same time as rx2fits.? Have you done that?
Hi Richard,
?
I have to admit that so far I've only worked with the RX888 at home. My calibrator is at the receiving site in the uplands.
I believe Huub has already made calibrated recordings, but possibly using SDRconsole. He'll probably report on the topic later.
?
Best wishes
Sabine
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Germany
Standard time: UTC +1 hour
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Re: Views of the Solar "Storm" from the Dark Sky Observatory May 13, 2025
Tyson The instructions for using the RX888 with SDR Condole and SDRc2RSS can be found on the Radio JOVE WIKI page. We support that method.? Larry K4LED
On Thu, May 15, 2025 at 9:01?PM Tyson Sapre via <tyson.sapre= [email protected]> wrote: Hi everyone,
I recently purchased an RX-888 and was wondering if there are instructions on how to run rx2fits code within Linux.? I know how to install Linux but maybe there is a distro that is best.? Open to any tips/suggestions.? Thanks!
Tyson
Hi Sabine,
?
We are working on that.? We have located a Linux computer and have installed rx2fits.? Next step is to figure out how to run the calibrator at the same time as rx2fits.? Have you done that?? I imagine one just needs to write a python program on linux to communicate with the calibrator, but we haven't done that yet.? Now that exams are finished, we will have more time.
?
Best wishes,? Richard
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Re: Views of the Solar "Storm" from the Dark Sky Observatory May 13, 2025
Jim Nathan wrote rx2fits but as far as I know rx2fits2rss does not exists. His rx refers to the RX888 MK2 sdr. Nathan worked with a group on the RX888 web server but it never worked right. Think Nathan left that group as another fellow is now redesigning the RX888. The RX666 was designed by a European ham. The Chinese picked up the design and produced the RX888.? The MKII came later when they improved?the USB port and added the capability of an external clock. The Rx888 MKII has been ?plagued with over heating issues. They need to put it in a larger enclosure snd improve the circuitry.?
Sabine, what is rx2fits2rss?? I see Nathan's rx2fits project.? So does this convert FITS to RSS ?
Vielen Dank Jim
Hi Richard,
?
while you continue to create brilliant shots: Did you find a student to set up a Linux machine and try out rx2fits and rx2fits2rss?
?
Sabine
--
Germany
Standard time: UTC +1 hour
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Re: Views of the Solar "Storm" from the Dark Sky Observatory May 13, 2025
Sabine, what is rx2fits2rss?? I see Nathan's rx2fits project.? So does this convert FITS to RSS ?
Vielen Dank Jim
Hi Richard,
?
while you continue to create brilliant shots: Did you find a student to set up a Linux machine and try out rx2fits and rx2fits2rss?
?
Sabine
--
Germany
Standard time: UTC +1 hour
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Re: Views of the Solar "Storm" from the Dark Sky Observatory May 13, 2025
Oh, and those frames are amazing!
Hi everyone,
I recently purchased an RX-888 and was wondering if there are instructions on how to run rx2fits code within Linux.? I know how to install Linux but maybe there is a distro that is best.? Open to any tips/suggestions.? Thanks!
Tyson
Hi Sabine,
?
We are working on that.? We have located a Linux computer and have installed rx2fits.? Next step is to figure out how to run the calibrator at the same time as rx2fits.? Have you done that?? I imagine one just needs to write a python program on linux to communicate with the calibrator, but we haven't done that yet.? Now that exams are finished, we will have more time.
?
Best wishes,? Richard
|
Re: Views of the Solar "Storm" from the Dark Sky Observatory May 13, 2025
Hi everyone,
I recently purchased an RX-888 and was wondering if there are instructions on how to run rx2fits code within Linux.? I know how to install Linux but maybe there is a distro that is best.? Open to any tips/suggestions.? Thanks!
Tyson
Hi Sabine,
?
We are working on that.? We have located a Linux computer and have installed rx2fits.? Next step is to figure out how to run the calibrator at the same time as rx2fits.? Have you done that?? I imagine one just needs to write a python program on linux to communicate with the calibrator, but we haven't done that yet.? Now that exams are finished, we will have more time.
?
Best wishes,? Richard
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Solar SID 05/15/2025 Easley, South Carolina
Good evening: ? ? ?Solar from today. I am calling the first two captures a SID. However, the margins of signal drop-out are quite distinct, leaning me away from calling it a SID. Did anyone else see it?
John
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Re: Views of the Solar "Storm" from the Dark Sky Observatory May 13, 2025
Hi Sabine,
?
We are working on that.? We have located a Linux computer and have installed rx2fits.? Next step is to figure out how to run the calibrator at the same time as rx2fits.? Have you done that?? I imagine one just needs to write a python program on linux to communicate with the calibrator, but we haven't done that yet.? Now that exams are finished, we will have more time.
?
Best wishes,? Richard
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Larry Dodd
Carl Pajak Phone
Sabine Cremer
