Quite a challenge! https://www.camras.nl/blog/2024/dwingeloo-ontvangt-signalen-van-voyager-1/

A bit off topic, but UKRAA are looking for someone who has DXF creating and editing experience for some assistance - only a small question - ! If you can help, please contact Paul Hearn. Apologies for this but cries for help in the past have on this channel have yielded some great expertise. -- ¦¦¦ Paul Hearn ¦¦ paul@... ¦¦ RA Section Director ¦¦

Watch live feed of meteors in the Geminid Meteor Shower being detected from Lichfield, UK, by radio meteor scatter on 143.049MHz by clicking on the link below: https://www.astronomy.me.uk/live-counts-of-meteor-observation-by-radio-scatter-from-lichfield-radio-observatory-on-the-web

Is anyone doing amateur long-baseline interferometry in the UK? I'd characterise it as "fairly-long baseline", say up to 200km, so timing constraints are not in the "H-maser in the basement" class. Maybe using DiFX? -- Neil https://youtube.com/MachiningandMicrowaves

I have been asked to comment on “the effects of satellite megaconstellations on radio astronomy”. Has anyone any thoughts they could share? Brian

I study forward scatter meteors using the GRAVES transmitter in FRANCE on 143.050 MHz. Satellites also scatter and considerable QRM is detected. At the moment I can disentangle the satellite’s scattered signal from my data with post processing but some meteor data is caught up in this. I can send more info if needed. Regards Mike --- /\ _/\/ \ / \/\ Mike German Hayfield in High Peak

Hi Radio Astronomy Section Zoom Friday the 6th Dec 2024 Cosmic ray muon measurement at a global scale and the associated applications. By Professor Xiaochun He Video is now on YouTube here You can find links to previous meeting videos and associated materials here Kind Regards John B

We are pleased to announce the date of the 2025 EU Conference on Amateur Radio Astronomy (EUCARA25) - Friday September 5th - Sunday 7th. This will be held at the Visitor Center on the Harwell Campus. Further details will be published soon on our the website - eucara.org. We are honored that Professor Jocelyn Bell Burnell will be our key note speaker. When registration is open we will let you know via the forums. -- ¦¦¦ Paul Hearn ¦¦ paul@... ¦¦ RA Section Director ¦¦

My apologies that this post is a little off topic but the UK Radio Astronomy Association needs your help. We are a volunteer organisation which promotes all aspects of radio astronomy encourages amateur scientists to participate in observing the universe. We are seeking the assistance of a graphic artist to assist in the preparation of artwork for roller banners, posters, presentations and our website. The graphics will illustrate the science of astronomy and physics and be used at exhibitions and talks. We are a group of engineers who know our limitations and appreciate that this is not our area of expertise or talents! We have a vision of what we need but no ability to realise our goal. As a charity we do not have a large budgets to commission this work, but we appreciate that expenses need to be covered. An interest in astronomy would be helpful but is not necessary. If you are interested, or know somebody who may able to assist please contact me on andrew.thomas@.... Andrew Thomas UKRAA Trustee

Professor Xiaochun He Department of Physics & Astronomy, Georgia State University The development of a global network for Cosmic ray muon detection is described. The focus of the presentation will be on the detector development and the expansion of the detector network worldwide which will be mainly used for monitoring the dynamic changes in the space and terrestrial weather in real-time at global scale. The Zoom link for this seminar has been posted. If you have not received it or want to be added to the distribution list please contact me. -- ¦¦¦ Paul Hearn ¦¦ paul@... ¦¦ RA Section Director ¦¦

I have been expreimenting with Radio Astronomy observing the hydrogen line using conical feedhorns using both gnuradio and sdrangel software. In the SDR angel software there is the star tracker which has 'heat' maps of the Milky way one of which is recorded at 480MHz. So I thought it would be interesting to see what 408MHz looks like locally, obviously its pretty busy. So using a V antenna (two concertina areial at 120 degree angle) going into a Noolec broadband amplifier feeding an Airspy R2 with 10 MHz bandwidth and sample rate I have been looking at 10 Mhz regions < 410 MHz. I have noticed that there is a signal which in the morning moves to lower frequency numbers and then around 2 pm starts to move back up to high frequency numbers. I have observerd, and continue to observe this signal over several days. I was wondering whether it was something to do with the sun, as by around 2 pm the sun is due south where the antenna is roughly pointing (at and angle of 40 - 50 degrees elevation). In the attachment you can see two examples of the peak of interest at 13:30 and 15:00 where the signal has moved frequency. At the end of the attachment is an excel plot of the data over several days, is some of the plot the signal went out of the observing frequnecy range, but overal you can see it is repetetive but perhaps the signal is moving slowly to high frequencies. As I say I though it might be the sun, and it was the doppler effect I was observing. It has been suggested that this might be a satellite and that I should lok for modulation in the signal. That is something I will try to do on Friday when I can get to the observatory. Can anyone help identify what it is I am observing here?

While the beacon is operating OK after the week end storm the server providing the live stream is OFF. A site visit is due at the end of the week so we hope to fix it then. Brian

FTA2 which is normally on 20.9kHz seemed to have come back on air at 10:02 on 6th November. However, the centre of its modulation is now on 21.04kHz. Does anyone know if this is still FTA2 with a shift of modulation by 140Hz or a different transmitter? Mark