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Hi Andrew Well done on a great presentation. Many attendees commented on your presentation which generated a whole lot of interest and was a very positive response to what we endeavour to deliver to a

It was wonderful to see how many people stopped by the BAA stand at Astrofest this week to find out from Andrew Thomas and team about the UKRAA Muon Detectors. The team did marvellous job! Andy Sent

Wow - that bunch of reflections all over all the receivers is impressive. I had guessed last night when I saw the upper right pane with no title that it was your opposite polarity receiver. Well done

A new receiver in the developing network of receivers for the GB3MBA UK meteor beacon is on line from my location for the next few days. It is client 3 top row - right on the live stream at:-

Hi Paul, I have not received the link. Can you please send it? Thanks, Wolfgang Von: [email protected] <[email protected]> Im Auftrag von Paul Hearn Gesendet: Montag, 29. Januar 2024 08:58 An:

Melvyn G8RRN - I did respond to tor PM on this - maybe it went into your spam? Steve G8KHW

Friday Feb. 2nd. 19:30 GMT (19:30 UTC) on Zoom *Amateur SDR based* *interferometry -* hardware and software. (Getting started) Marcus Leach President. *Canadian Centre for??Experimental?Radio

Might interest you all! Andy

Thanks Peter, I was trying to keep things simple and not have a feed cable (although I accept even a connector is a short length of 50ohm coax) but had forgotten I had measured the antenna into 50

Hi folk - I'm a radio ham and just joined this group because I have a 1.8m, 6 petal aluminium parabolic dish to dispose of. Obviously of interest for EME and Radio Astronomy. I'm pretty sure it was

Please see the attached 2024 Polar Aeronomy and Radio Science Summer School (PARS) announcement ( https://haarp.gi.alaska.edu/pars2024 ).? The 10-day program will be held at the University of Alaska

It is not easy to give you a satisfactory answer Melvyn. If you connect your antenna directly to the LNA, then you can almost use ohms law to work out the power loss plus the equivalent loss added

Now it's getting quite interesting. No feedback yet from Leicester National Space Centre or university research group. Tony

A question for the RF engineers amongst us. How important the output return loss of the antenna feed. To my mind if you have an LNA of 75K input noise temperature, as well as adding that noise to the

Hello Folks The receiver located near the Armagh observatory in Northern Ireland is back on the air following a more complete installation after the initial trial. So we now have two of the planned

All members You may have received an email? about "Reverification" from groups.io. Yes I know this is standard scam procedure, but this is ligitimate. This was triggered by Spamhaus identifying

Just trying to listen to this.. Amateurs in Radio Astronomy https://physicsworld.com/a/radio-pioneers-the-enduring-role-of-amateurs-in-radio-astronomy/ -- -- Martyn

-- Martyn ---- Andrew Thornett via groups.io wrote ----

Interferometers need hardware bias tees for SAWBird H+ 1420MHz filters with cascaded amplifiers, (which they also need as AD8302 chip requires certain level power input on SMA connectors to work) as

I am John