Welcome to the Lothians Radio Society

Scottish Charity number SC045038

  • LRS Messages of the Day:

    Wed 14 Oct 2026 – LRS Autumn Surplus Equipment Sale at St Fillans Church.                       Sat 24 Oct 2026 – MoC Goudie lecture Baird, Early Television and Museum Legacy, will be presented by Iain Logie Baird, grandson of John Logie Baird. See Upcoming Meetings.     Sun 25 Oct 2026 – Galashiels Rally – 11:15am – Volunteer Hall, Galashiels.                               Sat 31 Oct 2026 – NOTE – GMRT-2026 is now FULLY BOOKED.

LRS MEETINGS

  • The next MoC Goudie Lecture will take place at 11.30 am on Saturday 24 October, followed by a buffet lunch for in-person attendees. Entitled Vision 1926: Baird, Early Television and Museum Legacy, presented by Iain Baird, grandson of John Logie Baird. Please see Events – Museum Of Communication for further information.
    To attend in person, please email enquiries@mocft.co.uk or REPLY ALL to this e-mail.

    Zoom access details will be sent to you about 10 days before the Lecture.

    Attendance in person costs £5. Those viewing the lectures online are encouraged to make a voluntary donation of £5 in support of MoC activities via our web page at Shop – Museum Of Communication . We are a charitable organisation that relies on

  • Sat 31 Oct 2026 – GMRT-2026 at MOC Burntisland & Dinner at Kingswood Hotel

    The 2026 Scottish Microwave Round Table (GMRT-2026) will be held as usual at the Museum of Communication in Burntisland, followed by dinner at the nearby Kingswood Hotel. The panel of speakers is now complete.  GMRT-2026 is now FULLY-BOOKED – all 50 places sold. WAITING LIST – Contact Colin GM4HWO.       https://gmroundtable.org.uk/ 

  • Sun 25 Oct 2026 – Galashiels Rally

    11:15 am – Volunteer Hall, Galashiels.

    See: Galashiels and District Amateur Radio Society (GDARS) GM4YEQ

  • The LRS operates GM3HAM/P from a great site near Gatehouse of Fleet in Dumfries & Galloway.

    (This photo by Andy MMØFMF / now GM4LLD, is in RSGB RadCom Sept 2025, p.80).

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RADIO NEWS, RECENT MEETINGS, SILENT KEYS and FOR SALE / WANTED

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Items usually archived as News or Silent Keys in LRS Archive after 1 month.

  • 23 Sept 2026 – LRS visits MoC for TV Exhibition and Goudie TV Lecture

    23 Sept 2026 – LRS visits MoC for TV Exhibition and Goudie TV Lecture

    LRS members had dinner at the Sands Hotel in Burntisland before going on to the Museum of Communication to view the 2026 exhibition “100 Years of Television – When Screens were small but the magic felt huge” and the lecture by Prof. Tom Stevenson.   An MoC guide describes an exhibit item to LRS visitors.   An old TV repair shop.   Applications of television technology.   Introduction to the history of TV – 1905: First images in a Cathode-RayTube.   Applications of TV technology.   John Logie Baird’s dummy Stookie Bill and his disc scanner.   An image…

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  • 23 Sept 2026 – MoC Goudie Lecture – 100 Years of Television – some technical milestones – by Prof Tom Stevenson

    23 Sept 2026 – MoC Goudie Lecture – 100 Years of Television – some technical milestones – by Prof Tom Stevenson

      The was an excellent turnout of members of the Museum of… Read more

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  • 13 June 2026 Dell Monitor for sale by Andy GM4LLD.

    Dell U2412M hi-res 1920 x 1200 LCD monitor Adjustable stand DisplayPort, DVI & VGA inputs 1920 x 1200 WUXGA resolution 4 port USB2 hub. Mains lead Very good condition, no screen blemishes. £35 Andy GM4LLD.

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  • 28 June 2026 – Corsair CV450 modern PC PSU – for sale by Andy GM4LLD

    Corsair CV450 modern PC PSU. Comes from my son’s PC as he has just updated with some new GPU that needs a bigger PSU. No box but clean and working. £20 Andy GM4LLD (ex-MM0FMF)

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  • Wed 28th March 2012 – Homebrew Microwave Construction by John Cooke GM8OTI

    Wed 28th March 2012 – Homebrew Microwave Construction by John Cooke GM8OTI

    John GM8OTI and his homebrew 23cm & 13cm transverters and yagis At the meeting of the LRS on 28th March 2012 LRS Past-President Dr. John Cooke GM8OTI talked about “Homebrew Microwave Construction”. John is an avid SOTA operator and has designed and constructed all his lightweight portable equipment, progressively moving up in frequency band, now on 13cm. When first licensed…

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  • 9th March 2012 Aurora Summary by GM4BYF

    9th March 2012 Aurora Summary by GM4BYF

    The double CME eruption of March 7th produced a complicated magnetic situation. Most likely both CMEs “ate” each other (hence weakening the strength of the magnetic field BZ). Only the latter part finally produced some aurora, but not as strong as it might have been. Finally the BZ turned south and around 12:00 UTC the…

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  • Wed 14th March 2012 – WWII Utility Radios by Colin GM4HWO & Peter GM4DTH

    Wed 14th March 2012 – WWII Utility Radios by Colin GM4HWO & Peter GM4DTH

    Colin GM4HWO & Peter GM4DTH after their presentation. At a most enjoyable meeting of the LRS on 14th March Colin Wright GM4HWO described the “Utility Radios” that were manufactured by a number of companies as affordable broadcast receivers for the home during World War II. Then Peter Dick GM4DTH showed film footage of broadcasting during the war and played a selection of recordings…

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  • 22nd Feb 2012 – Modifying PC PSUs for Radio Use by Brian Flynn GM8BJF

    22nd Feb 2012 – Modifying PC PSUs for Radio Use by Brian Flynn GM8BJF

    GM8BJF measuring voltage on a modified PC PSU At the meeting of the Lothians Radio Society on 22nd February LRS member Dr. Brian Flynn GM8BJF described how to modify computer power supply units for use in Amateur Radio. The talk started off with a description of the operation of SMPS – Switch-Mode Power Supplies – and an explanation of the commonly used topologies (circuit…

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  • Wed 8th Feb 2012 – Aurora Explained by Dr. David Gavine

    Wed 8th Feb 2012 – Aurora Explained by Dr. David Gavine

    At the meeting of the Lothians Radio Society on Wednesday February 8th Dr. David Gavine talked on “Aurora Explained” – how it is caused by disturbances on the Sun, what it looks like & how it was “explained” in the past, with plenty of illustrations. Dr Gavine is retired from teaching astro-navigation and meteorology at Leith Nautical College (where Colin Wright…

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  • HAPPY NEW YEAR!

    HAPPY NEW YEAR!

    (Photo by GM3PSP) A Happy New Year to all our readers! We look forward to welcoming you to the meetings of the Lothians Radio Society in 2012. The LRS has an excellent programme of technical presentations on the 2nd and 4th Wednesdays of the month at the Braid Hills Hotel – see This Year’s Programme.

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  • Wed 11th Jan 2012 – Video Evening – ‘The Spies Who Lost the Battle of Britain’

    Wed 11th Jan 2012 – Video Evening – ‘The Spies Who Lost the Battle of Britain’

    CHL – Chain Home Low radar installation The first meeting of the LRS in 2012 was the Video Evening on Wednesday 11th January. Peter Dick GM4DTH presented The Spies Who Lost the Battle of Britain, the story of British Radar and how the Germans nearly discovered it, a documentary about the Chain-Home radar system. This was followed by  RDF…

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  • Wed 25th Jan 2012 – International Lighthouses Weekend 2011 by Geoff Crowley MM5AHO

    Wed 25th Jan 2012 – International Lighthouses Weekend 2011 by Geoff Crowley MM5AHO

                 Approaching Skerryvore Lighthouse Geoff Crowley MM5AHO described and showed video footage shot by his son Matt MM1EUI of their participation in the International Lighthouses & Lightships Weekend in August 2011. They sailed from Oban to Skerryvore and several other lighthouses. They did some exploration and research into the building of these Stevenson lighthouses. The presentation covered the construction of the Skerryvore and Dubh…

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  • RSGB EGM on 19th November 2011 – All Motions Carried

    RSGB EGM on 19th November 2011 – All Motions Carried

    Photo courtesy RSGB  At the RSGB EGM held on 19th November 2011 at the Hilton Metropole Hotel, Birmingham NEC, all the motions were carried: creation of an Interim Board and the appointment of individual members to it. A full report is on the RSGB EGM webpage. For preliminary information about the EGM, see also the following items…

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  • Wed 14th December 2011 – LRS Christmas Curry

    Wed 14th December 2011 – LRS Christmas Curry

    Paul GM4UPN & Brian GM8BJF, winners of the annual “Largest Naan” competition in 2011. (Photo by GM3PSP) The annual Lothians Radio Society Christmas Curry was held on Wednesday, 14th December at the Himalaya Tandoori Restaurant,  Bruntsfield Place after pre-dinner drinks at nearby Montpelier’s bar. 14 members and their partners attended and a merry time was had by all. Photo report. http://www.himalaya-restaurant.co.uk/content/ 

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  • Wed 23rd Nov 2011 – Communication Receiver Design by David Stockton GM4ZNX

    Wed 23rd Nov 2011 – Communication Receiver Design by David Stockton GM4ZNX

    (Photo courtesy GM4ZNX) David Stockton GM4ZNX talked about Communication Receiver Design at the LRS meeting on 23rd November 2011. He described the evolution of our current receiver designs from the beginning, showing what considerations pushed each change along the way. In addition to showing pictures of many classic receivers, David brought examples of the very desirable Eddystone EA-12 receiver and the ICOM…

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  • 5th Nov 2011 – GMRT – Scottish Microwave Round Table

    5th Nov 2011 – GMRT – Scottish Microwave Round Table

    LRS Member Chris GM4YLN with Brian GM8BJF who brought a ton of test equipment to Burntisland to provide rig-testing for GMRT participants. The first Scottish Microwave Round Table – GMRT – organized by a team chaired by Ray James GM4CXM, was held on 5th November 2011 at the Museum of Communication, Burntisland with about 45 participants from GM,…

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