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Installing Ubuntu on my miniPC

 

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Boy! Am I going through a steep learning curve. I couldn't get any other type Linux to install and I had a mountain to climb to get Ubuntu to do it. Yipes! HP Prodesk G4.

At last, I have got dual boot working with Win 10. Now I am installing lots and lots of packages.....not sure how many I really need.

ChatGPT has really helped telling me what to do!

Andy
Emailing: First LRO PicoMuon detector weekly variation results 250525.png

 

I am very pleased with the results so far - however, request to the software programmers of the 2nd Raspberry Pi which creates the intranet page - is there any way that the daily, weekly and monthly plots can be saved for future perusal? For example, if in a few months, I look at a monthly plot and see a change then I will want to drill down to find out what happened by going back to the relevant weekly or daily plot, ideally without having to reinvent the wheel and write my own software to re-analyse the data?

Probably, also worth storing separate copy of the data on the 2nd Raspberry Pi plugged into the PicoMuon detector.

Andy

First LRO PicoMuon detector weekly variation results 250525.png

Re: Detecting Massive X-Class & M-Class flares on 14 May 2025 using Sudden Ionospheric Disturbance monitor at Lichfield Radio Observatory UK

 

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Your traces are excellent – I might give that a try too

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From: [email protected] <[email protected]> On Behalf Of Mark Edwards via groups.io
Sent: 22 May 2025 22:22
To: [email protected]
Subject: Re: [baa-rag] Detecting Massive X-Class & M-Class flares on 14 May 2025 using Sudden Ionospheric Disturbance monitor at Lichfield Radio Observatory UK

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Andrew,

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I don't use any VLF receivers, all I do is connect a loop aerial (a 5m length of old SCART cable) to the microphone input of a PC

and use that as the input to SpectrumLab. That way I can monitor many freqs. at once rather than

use a single dedicated receiver.

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Transmitters often go off air or change frequency so it's easy in Spectrum lab to change the watch list when that happens.

?

Mark
Re: Detecting Massive X-Class & M-Class flares on 14 May 2025 using Sudden Ionospheric Disturbance monitor at Lichfield Radio Observatory UK

 

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Andrew,

?

I don't use any VLF receivers, all I do is connect a loop aerial (a 5m length of old SCART cable) to the microphone input of a PC

and use that as the input to SpectrumLab. That way I can monitor many freqs. at once rather than

use a single dedicated receiver.

?

Transmitters often go off air or change frequency so it's easy in Spectrum lab to change the watch list when that happens.

?

Mark
Re: Detecting Massive X-Class & M-Class flares on 14 May 2025 using Sudden Ionospheric Disturbance monitor at Lichfield Radio Observatory UK

 

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Thanks Mark.

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Are you using the UKRAA VLF receivers?

?

I am using one set at 23.4 KHz – are you doing the same? And if so how are you getting the output into Spectrum Lab?

?

Mine is an old version with parallel port so I am taking the analogue output from the VLF receiver, putting it through a Labjack U3 and bringing it into Radio Sky Pipe II currently.

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Andy

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From: [email protected] <[email protected]> On Behalf Of Mark Edwards via groups.io
Sent: 21 May 2025 15:11
To: [email protected]
Subject: Re: [baa-rag] Detecting Massive X-Class & M-Class flares on 14 May 2025 using Sudden Ionospheric Disturbance monitor at Lichfield Radio Observatory UK

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Andy,

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You set up a watch list for the plotter like this:-

For each of the monitored freqs. in the 'Expression' I average over a bandwidth of 150Hz to try to cover the sidebands.

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My averaging over 60 FFTs amounts to about 5s.

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Mark

?

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Re: Detecting Massive X-Class & M-Class flares on 14 May 2025 using Sudden Ionospheric Disturbance monitor at Lichfield Radio Observatory UK

 

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Andy,

?

You set up a watch list for the plotter like this:-

For each of the monitored freqs. in the 'Expression' I average over a bandwidth of 150Hz to try to cover the sidebands.

?

My averaging over 60 FFTs amounts to about 5s.

?

Mark

?

?
Re: SID monitoring recording on Radio Sky Pipe II

 

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Thanks Alan

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From: [email protected] <[email protected]> On Behalf Of Alan Melia via groups.io
Sent: 20 May 2025 23:33
To: [email protected]
Subject: Re: [baa-rag] SID monitoring recording on Radio Sky Pipe II

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Andy analogue filtering needs to be quite slow to remove that kind of noise. In the 2000s I was doing similar recording on 136kHz, and most of the noise was distant lightning. I chose to take 6 readings at 2 sec intervals and only save the lowest which became the reading for the mid point of the 6 readings. This was based on the idea that there may be gaps between the strikes. However ideally the filtering before digitisation should not be too narrow because that will spread the width of the pulses. This is not usually provided as a filter so you may need to experiment with you receiver and software to use it. I found RSP only provided averaging which is not the best solution.

Best Wishes
Alan G3NYK

On 20/05/2025 22:08, Andrew Thornett via groups.io wrote:

Does anyone else use Radio Sky Pipe for recording output of UKRAA SID monitors? If so, how long an integration time do you use? I was using 5 seconds but still quite noisy. Should I use 10 secs or even 30 secs?

?

Andy

?
Re: SID monitoring recording on Radio Sky Pipe II

 

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Andy analogue filtering needs to be quite slow to remove that kind of noise. In the 2000s I was doing similar recording on 136kHz, and most of the noise was distant lightning. I chose to take 6 readings at 2 sec intervals and only save the lowest which became the reading for the mid point of the 6 readings. This was based on the idea that there may be gaps between the strikes. However ideally the filtering before digitisation should not be too narrow because that will spread the width of the pulses. This is not usually provided as a filter so you may need to experiment with you receiver and software to use it. I found RSP only provided averaging which is not the best solution.

Best Wishes
Alan G3NYK


On 20/05/2025 22:08, Andrew Thornett via groups.io wrote:

Does anyone else use Radio Sky Pipe for recording output of UKRAA SID monitors? If so, how long an integration time do you use? I was using 5 seconds but still quite noisy. Should I use 10 secs or even 30 secs?

?

Andy
SID monitoring recording on Radio Sky Pipe II

 

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Does anyone else use Radio Sky Pipe for recording output of UKRAA SID monitors? If so, how long an integration time do you use? I was using 5 seconds but still quite noisy. Should I use 10 secs or even 30 secs?

?

Andy
Re: Detecting Massive X-Class & M-Class flares on 14 May 2025 using Sudden Ionospheric Disturbance monitor at Lichfield Radio Observatory UK

 

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Dear Mark,

This is a bit embarrassing – I just looked back at my SID computer and I did wonder where this FFT settings came from – I use Radio Sky Pipe to record my data hence why I can’t find it! How do you use Spectrum Lab to record SID graphs? I have only every used it for 2D and 3D waterfalls for my meteor detection system.

Andy

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From: [email protected] <[email protected]> On Behalf Of Andrew Thornett via groups.io
Sent: 20 May 2025 08:28
To: [email protected]
Subject: Re: [baa-rag] Detecting Massive X-Class & M-Class flares on 14 May 2025 using Sudden Ionospheric Disturbance monitor at Lichfield Radio Observatory UK

?

Your plot looks marvellous! I will see if I can work out how to average 60 FFTs as you have done

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Sent from

From: [email protected] <[email protected]> on behalf of Mark Edwards via groups.io <mark@...>
Sent: Monday, May 19, 2025 8:11:47 PM
To: [email protected] <[email protected]>
Subject: Re: [baa-rag] Detecting Massive X-Class & M-Class flares on 14 May 2025 using Sudden Ionospheric Disturbance monitor at Lichfield Radio Observatory UK

?

Here's my plot at 23.4kHz.

I set spectrumlab to average over 60 FFTs to reduce the noise level,
which seems to work well.


Mark
Re: Detecting Massive X-Class & M-Class flares on 14 May 2025 using Sudden Ionospheric Disturbance monitor at Lichfield Radio Observatory UK

 

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I use an ancient version of SpectrumLab, but from what I see the latest version still

has an 'FFT output internal average (#FFTs)' option in the 'FFT settings' window.

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The window is shown here: https://hamsci.org/spectrum-lab-solar-eclipse-instructions-page

Don't use these values though!

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Mark
Re: Detecting Massive X-Class & M-Class flares on 14 May 2025 using Sudden Ionospheric Disturbance monitor at Lichfield Radio Observatory UK

 

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Your plot looks marvellous! I will see if I can work out how to average 60 FFTs as you have done

Sent from

From: [email protected] <[email protected]> on behalf of Mark Edwards via groups.io <mark@...>
Sent: Monday, May 19, 2025 8:11:47 PM
To: [email protected] <[email protected]>
Subject: Re: [baa-rag] Detecting Massive X-Class & M-Class flares on 14 May 2025 using Sudden Ionospheric Disturbance monitor at Lichfield Radio Observatory UK
?
Here's my plot at 23.4kHz.

I set spectrumlab to average over 60 FFTs to reduce the noise level,
which seems to work well.


Mark
Re: Detecting Massive X-Class & M-Class flares on 14 May 2025 using Sudden Ionospheric Disturbance monitor at Lichfield Radio Observatory UK

 

Here's my plot at 23.4kHz.

I set spectrumlab to average over 60 FFTs to reduce the noise level,
which seems to work well.


Mark

sid250514234.jpg

Detecting Massive X-Class & M-Class flares on 14 May 2025 using Sudden Ionospheric Disturbance monitor at Lichfield Radio Observatory UK

 

Detecting X-Class & M-Class flares on 14 May 2025 using Sudden Ionospheric Disturbance monitor at Lichfield Radio Observatory (my house!):

My data = red & noisy..

Comparison data = purple, SID Monitoring Station, (not my data, which you can tell because it is a lot less noisy!)

Andy

LRO UKRAA 23-4KHz SID data compared to SID Monitoring Station data 140525.png

Re: PicoMuon Detector

 

Thanks Andy for the vote of confidence.? The UKRAA team are very pleased with this new detector; the result of a years development.? The Raspberry Pi data visualization software and the Pi web-server software is an on going development and will be added to with additional features.? If any one has muon data from any detector please send to John Cook for inclusion in the BAA RA Section monthly report.? Long term muon flux measurements will be particularly interesting.? If anyone wants to start a project to corelate lightening events with muon flux please have a go.? There are Universities exploring this and may be interested in your results.
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The Pico muon detector will be demonstrated at EuCARA 25 () in September.? We would live to see you in person..!?
--
???? Paul Hearn? ???? ?paul@...? ???? ?RA Section Director? ???
PicoMuon Detector

 

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Hi Paul & rest of UKRAA team,

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I REALLY like the PicoMuon detector! Very nice! Great improvement on CosmicWatch ones. Thanks for all your efforts on creating such a wonderful instrument, and for all the time you volunteer free-of-charge to this and other projects – it is great appreciated!!

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Andy
Re: Strange SID 20th April

 

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Hello Mark,

??? ??? Do you have timings for this, as they were not in the report that you sent earlier?

Thanks,
John.

On 22/04/2025 09:29, Mark Edwards wrote:

Thanks for the charts.

It certainly looks as though something disturbed the ionosphere at that time, but what caused it is the question.

It was just before sunset for the paths to Anthorn and Skelton, but after sunset for 23.4kHz.

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The C4.3 flare at 17:18 shows up well on Paul's chart as it does on mine so I would have expected something

of similar intensity to cause the bump at 19:00. Whether the much larger disturbance at 19.6 and 22.1 was a coincidence

or an indication of its source is another question.

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Mark
Re: Meteor echo of the day.

 

A pretty busy 30 s or so.?
Re: Meteor echo of the day.

 

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Hello Mike

The period covered by the screenshots is 06:48:20 to 06:50:15. The time stamp on each screen is when the screen was grabbed and the screen shows about one minute of data . I couldn't stop to grab another screenshot as I was on my way out of the house at the time.

Brian

On 03/05/2025 14:59, Mike German via groups.io wrote:

I seem to have captured the same meteoroid using the GRAVEStransmitter.? At the higher frequency the event lasted just over a minute.? Similar broad bands in the specular scatter trail and there is the same evidence of the "head echo"
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Mike
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Re: Meteor echo of the day.

 

I seem to have captured the same meteoroid using the GRAVEStransmitter.? At the higher frequency the event lasted just over a minute.? Similar broad bands in the specular scatter trail and there is the same evidence of the "head echo"
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Mike
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1 - 20 of 2011