Now with the GB3MBA
meteor beacon back ON how about making some observations ?
Few people have time
to
look at a screen for long and I certainly don't.? The way I make
observations is by using a second screen on my PC while continuing
with other work. I put
on the second screen and if, while doing other things, I see
something interesting I grab a screenshot of the live stream from
all
the receivers using “Snipit” , ( + Win +Shift +S ) and save the
second screen. Best times are in the mornings UK Time or if there
is
a recognised shower of course expect to see about two echoes per
minute.?
Things to note include
the spread of Doppler shift of the head and tail echoes, duration
of
the tail echo, and which receivers in the network
see the echoes. Head echoes are highly directional and linearly
polarised. Note the difference between the horizontal and vertical
polarised systems at NW Hampshire.
For very little
investment of time and effort I'm sure you'll see all sorts of
interesting echoes and your feedback will enable us to improve the
system. Attached are some notes and examples. We are improving the
system and your feedback will help us to achieve the best results.
Regards
?Brian
|
Re: VLF Transmitters in Australia
Hello,
??? ??? There is a VLF station guide at
but it is still dated in 2000, so
probably not very reliable now. It does list a signal at 22.8kHz
from Holt, N.W Cape, but the vast majority of entries are in the
northern hemisphere. You may be able to find signals using
spectrumlab software. It uses the sound card on a PC, with a loop
aerial plugged into the microphone socket. By rotating the aerial,
you may be able to identify some active frequencies.
Not much help, I'm afraid,
Best wishes,
John.
On 17/03/2024 05:39, Nick Tate wrote:
toggle quoted message
Show quoted text
Hello
everyone.
?
I
am based in Australia, and I am aware of the Exmouth VLF
Transmitter.
?
Is
anyone aware of any other VLF transmitters in or near
Australia.
?
Thanks
?
Nick
?
?
Dr
Nick Tate
Haroldton
80
Mowbray Terrace
EAST
BRISBANE,
Queensland
4169
Australia
?
+61
412 674010
|
VLF Transmitters in Australia
Hello everyone. ? I am based in Australia, and I am aware of the Exmouth VLF Transmitter. ? Is anyone aware of any other VLF transmitters in or near Australia. ? Thanks ? Nick ? ? Dr Nick Tate Haroldton 80 Mowbray Terrace EAST BRISBANE, Queensland 4169 Australia ? +61 412 674010
|
Re: New Grindavik eruption
Started 20 minutes into the France - England match so I spent the evening switching between that and
Shawn Willsey is a geology Prof in Idaho - great communicator!
Paul Hyde
On Saturday, 16 March 2024 at 23:18:31 GMT, Mark Edwards <mark@...> wrote:
Hi all,
?
The Grindavik VLF transmitter on 37.5kHz switched
off again this evening a few minutes after a new volcanic eruption
started at 20:23. It looks as though it's
in the same place as in Feb away from the town and the transmitter.
?
?https://www.youtube.com/watch?v=mnm10rYtyz8
?
Mark
|
Hi all,
?
The Grindavik VLF transmitter on 37.5kHz switched
off again this evening a few minutes after a new volcanic eruption
started at 20:23. It looks as though it's
in the same place as in Feb away from the town and the transmitter.
?
?https://www.youtube.com/watch?v=mnm10rYtyz8
?
Mark
|
Re: GB3MBA meteor beacon back ON
Thanks for the update Brian
Best wishes
Mike G
On 16/03/2024 06:31, Brian wrote:
toggle quoted message
Show quoted text
Thanks
to a great team effort the Meteor beacon is back ON See
and the Live streams from the
receiver network at .
Special thanks to all at the Sherwood observatory for shipping the
transmitter back for repair and re-installing it so promptly on
its return.
Brian G4NNS
|
GB3MBA meteor beacon back ON
Thanks to a great team effort the Meteor beacon is back ON See and the Live streams from the receiver network at .
Special thanks to all at the Sherwood observatory for shipping the transmitter back for repair and re-installing it so promptly on its return.
Brian G4NNS
|
Re: Python Data procession and Visualisation - a set of tutorials.
toggle quoted message
Show quoted text
On Thu, Mar 14, 2024 at 5:12?PM Paul Hearn < paul@...> wrote: We have been thinking that there is a need for some tutorials about how to use the muon detector data for some weeks. The recent postings to the muon forum have encouraged us to organise a set of short, say one hour, online tutorials to cover, readers of this forum may also be interested:
- Setting up and operating a headless RaspberryPi
- How to communicate with a muon detector and log data to a computer.
- Using Python to process the data.
- Presenting the data graphically using Python to produce? counts/min/day/month and Frequency distribution for events graphs
The tutorial would also illustrate how observers could share data using a common format and metadata.
We are in discussions with a trainer and will post details in the next couple of weeks.? At the end of the course each attendee will have their own code to process and visualise their results.
If you are interested in one or all of these tutorials, please let me know by email.
--
???? Paul Hearn? ???? ?paul@...? ???? ?RA Section Director? ???
|
Re: Python Data procession and Visualisation - a set of tutorials.
Yes please Paul
Thanks
Mike
On 14/03/2024 17:12, Paul Hearn wrote:
toggle quoted message
Show quoted text
We
have been thinking that there is a need for some tutorials
about how to use the muon detector data for some weeks. The
recent postings to the muon forum have encouraged us to
organise a set of short, say one hour, online tutorials to
cover, readers of this forum may also be interested:
- Setting up and operating a
headless RaspberryPi
- How to communicate with a
muon detector and log data to a computer.
- Using Python to process the
data.
- Presenting the data
graphically using Python to produce? counts/min/day/month
and Frequency distribution for events graphs
The
tutorial would also illustrate how observers could share data
using a common format and metadata.
We
are in discussions with a trainer and will post details in the
next couple of weeks.? At the end of the course each attendee
will have their own code to process and visualise their
results.
If
you are interested in one or all of these tutorials, please
let me know by email.
--
???? Paul Hearn? ???? ?paul@...? ???? ?RA
Section Director? ???
|
Re: Python Data procession and Visualisation - a set of tutorials.
Im interested !
Thank Paul
On 14/03/2024 17:12, Paul Hearn wrote:
toggle quoted message
Show quoted text
We
have been thinking that there is a need for some tutorials
about how to use the muon detector data for some weeks. The
recent postings to the muon forum have encouraged us to
organise a set of short, say one hour, online tutorials to
cover, readers of this forum may also be interested:
- Setting up and operating a
headless RaspberryPi
- How to communicate with a
muon detector and log data to a computer.
- Using Python to process the
data.
- Presenting the data
graphically using Python to produce? counts/min/day/month
and Frequency distribution for events graphs
The
tutorial would also illustrate how observers could share data
using a common format and metadata.
We
are in discussions with a trainer and will post details in the
next couple of weeks.? At the end of the course each attendee
will have their own code to process and visualise their
results.
If
you are interested in one or all of these tutorials, please
let me know by email.
--
???? Paul Hearn? ???? ?paul@...? ???? ?RA
Section Director? ???
|
Python Data procession and Visualisation - a set of tutorials.
We have been thinking that there is a need for some tutorials about how to use the muon detector data for some weeks. The recent postings to the muon forum have encouraged us to organise a set of short, say one hour, online tutorials to cover, readers of this forum may also be interested:
- Setting up and operating a headless RaspberryPi
- How to communicate with a muon detector and log data to a computer.
- Using Python to process the data.
- Presenting the data graphically using Python to produce? counts/min/day/month and Frequency distribution for events graphs
The tutorial would also illustrate how observers could share data using a common format and metadata.
We are in discussions with a trainer and will post details in the next couple of weeks.? At the end of the course each attendee will have their own code to process and visualise their results.
If you are interested in one or all of these tutorials, please let me know by email.
--
???? Paul Hearn? ???? ? paul@...? ???? ?RA Section Director? ???
|
Re: Brackets from ebay to alter elevation of cantenna/small aerials
Very useful - thanks for the posting Andy
Mike German
High Peak
Hayfield
|
Brackets from ebay to alter elevation of cantenna/small aerials
Always a difficult thing to make/find, at least here in UK – discovered that 2 of these aerial brackets attached back to back do good job (form ebay.co.uk).
The white-painted steel pipe is ?3.99 from Focus hardware store in UK.
Andy
|
Hi Brian
Interesting? - the status page looks like all is working except only 0.1-0.2W forward power. I'll be interested in a report on what the fault is once it's sorted.
Tony
On Thu, 7 Mar 2024 at 09:02, Brian < brian@...> wrote: The GB3MBA beacon is off. We are investigating.
Brian
|
The GB3MBA beacon is off. We are investigating.
Brian
|
Fast Radio Burst – New data from the Astropeiler Stockert Observatory
Hi
?
Radio Astronomy Section Zoom Friday the 1st March 2024
?
Dr Wolfgang Herrmann- Fast Radio Burst – New data from the Astropeiler Stockert Observatory
Video is now on YouTube?
?
You can find links to previous meeting videos and associated materials?
?
Kind Regards
John B
|
First light of my homemade cantenna
Following advice from members of SARA on how to make one of these for hydrogen line radio observing, I’ve had a go at making a cantenna and am amazed at how easy it is to make and how effective – instant results!
See to view first light trace.
Given that the Nooelec 1.4GHz mesh aerial went up from ?50 to ?100 and is now ?132 on Amazon, a cheap alternative is really needed!!
This would be great alternative for the SARA Scope in a Box Project.
If I can get my interferometer working then will be really interesting as next step to see if fringes can be obtained with 2 cantennae!!!
Andy
|
Re: Special Tribute to HAARP Former Chief Scientist Chris Fallen
This follows up my previous post.?
?
Below are the details of the transmission that is planned for 0700 UTC on 7.75 MHz:
5 minute sequence: 15 sec QST DE KL3WX QST DE KL3WX 5 sec OFF 120 seconds AM modulation - 01_UAFLogo_Scottie1.wav (SSTV Image) 5 sec OFF 120 seconds AM modulation - 02_GILogo_Scottie1.wav (SSTV Image) 5 sec OFF 15 sec 73 DE KL3WX 73 DE KL3WX 15 sec OFF
The time is more reasonable for Europe than westward, and I hope we get some reception reports from you!
Whit
?
-- Whitham D. Reeve Anchorage, Alaska USA ---
|
Special Tribute to HAARP Former Chief Scientist Chris Fallen
Please see attached addendum to the HAARP Notice of Transmission for the current research campaign.
?
There will be special transmissions at 0700-0710 UTC tonight as described.
?
Whit ![]() -- Whitham D. Reeve Anchorage, Alaska USA ---
|
Re: Fri. Mar. 1st RAZoom LiteBIRD mission
Received thanks.
On 29/02/2024 15:20, Paul Hearn wrote:
toggle quoted message
Show quoted text
Dear
Mike,
?
Sorry
about that.? I’m still looking for the problem.
?
Professor
Hargrave sends his apologies.? He called me last night.? He
has a family emergency he needs to cover, but wants to
reschedule - we will see him sometime in the future.
Wolfgang was on the programme for tonight with an update and
he will present at 19:30 UTC.? If anyone else wants a slot
in part II please contact me.
?
|
?
March 1st
?
19:30 GMT (19:30 UTC)
?
|
Dr
Wolfgang Herrmann
|
Fast
Radio Burst - Update
|
Join
Zoom Meeting
Meeting ID: 867 1755 5991
Passcode: 739695
Next month......
|
?
April
5th
?
19:30 GMT (18:30 UTC)
|
?
Whit
Reeve
|
?
The?October 14, 2023?Solar Eclipse Effects on
VLF Radio Propagation Observed in Alaska
|
Join
the RA conversation? ? ? ? ? ? ? ? ? ? ? ?
Join the muon conversation?
? ? ? ??? ? ? ?
? ??
?
? ? ? ? ? ?
? ??
?
? ? ? ? ? ? ? ? ? ? ??
_______________________________________________________________
Paul Hearn
BAA Radio Astronomy Section Director
UKRAA Trustee
?
???? British Astronomical Association? ??
??
e?????paul@...
a???? RG6 1BU UK
t???? +44 (0)7967 388 578
?
?
?
Hi Paul,
I did not receive the Zoom link.
Mailchimp says I am already subscribed.
Best Regards
Mike Dawson
?
?
On 29/02/2024
12:04, Paul Hearn wrote:
The Zoom link
for this meeting has been sent out.?Peter
Hargrave has asked us to re-schedule as he has a family
matter to attend to.? Wolfgang Herrmann is still able to
share some new news from Astropeiler.? If anyone else
wants a slot in the 2nd half let me know and I can give
you space.
If you did not receive the link let me know and use
this Sign-up link to confirm your status - .
--
???? Paul
Hearn? ???? ?paul@...? ????
?RA Section Director? ???
--
???? Paul Hearn? ???? ?paul@...? ???? ?RA
Section Director? ???
|
Paul Hearn
WReeve