Welcome to the Lothians Radio Society

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  • LRS Messages of the Day

    TONIGHT – Wed 15th Oct 2025: LRS Surplus Sale at St. Fillan’s Church, Buckstone Drive, EH10 6PD. Doors open 7.30pm, 8pm start.

    Sat 18 Oct 2025 : 11:00am MoC Goudie Lecture – Britain’s Contribution to Victory in World War II by Roy Johnstone, followed by buffet lunch.

    Tues 28 Oct 2025 – Bletchley Park talk at Newington Library – see News Item, below.

    Sat 1 Nov 2025 – GMRT-2025 – Only 2 places left – book now! See Rallies etc below.

LRS MEETINGS

  • PLEASE NOTE LECTURE TIME IS 11:00 NOT 11:30AM.

  • AUTUMN 2025

    Wed 15th Oct (3rd Wed) – 8pm at St Fillan’s Church, Buckstone Drive – LRS Surplus Equipment Sale. Do not arrive before 7:30pm.

    Sat 18 Oct 2025 : 11:00am MoC Goudie Lecture – Britain’s Contribution to Victory in World War II by Roy Johnstone, followed by buffet lunch.

    Wed 29th Oct – Pub Night at Wee Bennet’s Bar, Maxwell St., Morningside Stn.

    Wed 12th Nov at 14:00h at Napier Univ. Craiglockhart – Technological advances in the development of WW2 airborne radar by Prof. Peter Grant. Click for details.

    Wed 12th Nov at 20:00h at BHH: Radio Safari to Eswatini  3DA0 by Malcolm Hamilton GM3TAL 

    Wed 26th Nov – at BHH: Something to do with Beacons by Brian Flynn GM8BJF.

    Wed 10th Dec:  LRS Xmas Curry:  8:00pm at Kahani Indian Restaurant (BYOB), 10 Antigua Street, after pre-dinner drinks at 7:00-7:55pm at Jeremiah’s Tap, Elm Row. 


  • 1st Oct 2025 – Using Ansys HFSS Software for Amateur Radio Projects by Brian Howie GM4DIJ.

    1st Oct 2025 – Using Ansys HFSS Software for Amateur Radio Projects by Brian Howie GM4DIJ.

    Brian discussed the workings of Ansys HFSS = High Frequency RF Simulation… Read more

  • 24 Sept 2025 – LRS Visit to MoC TV Exhibition & Bletchley Park Talk by Pete GM4BYF.

    24 Sept 2025 – LRS Visit to MoC TV Exhibition & Bletchley Park Talk by Pete GM4BYF.

    Speaker Pete GM4BYF was introduced by MoC Chair, Prof Tom Stevenson. Wed… Read more

  • Sat 1 Nov 2025 – Scottish Microwave Round Table (GMRT-2025)

    The 13th Scottish Microwave Round Table GMRT-2025, will go ahead between 10.30h and 17.00h on Saturday 1st  November at the Museum of Communication, Burntisland, Fife. An interesting programme of speakers has been arranged, microwave test facilities will be provided and there will be an opportunity to buy components and microwave-related items. An optional Dinner will be held in the evening at the Kingswood Hotel. Full info / online registration available at https://gmroundtable.org.uk/or email Colin GM4HWO  gm4hwo@gmail.com. Note the event has a maximum capacity of 50 people and only 2 places left –  book now!

    GMRT-2025 Program published (click).

  • Sun 26 Oct 2025 – Galashiels Rally

    Galashiels Rally – GM4YEQ

    Click for details.

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

    5-6 July 2025 – VHF NFD – see report in About LRS – Contest / Portable.

    (This photo by Andy MM0FMF is in RSGB RadCom Sept 2025, p.80).

test card

RADIO NEWS, SILENT KEYS and FOR SALE / WANTED

Click on image or “read more” to open full article.

Send items to Alan GM3PSP:

webmaster@lothiansradiosociety.com

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

  • 28 Oct 2025 6:00-7:30pm Bletchley Park illustrated talk by Derek Douglas at Newington Library

    28 Oct 2025 6:00-7:30pm Bletchley Park illustrated talk by Derek Douglas at Newington Library

    Derek Douglas is a member of the Colinton Local History Society. (Free) tickets necessary.  https://www.eventbrite.co.uk/e/bletchley-park-an-illustrated-talk-with-derek-douglas-tickets-1785984741439

    Read more

  • 3 Oct 2025 – 75th Anniversary of the Transistor

    3 Oct 2025 – 75th Anniversary of the Transistor

    The 3rd of October 2025 was the 75th anniversary of the patenting of the invention of the transistor by three […]

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  • 2 Oct 2025 – GM1CNH Norman’s HK Colombia DXpedition

    2 Oct 2025 – GM1CNH Norman’s HK Colombia DXpedition

    Some photos from Norman’s DXpedition to Colombia. (Norman GM1CNH & Peter GM4DTH).   HK3LRB club setting up in park for […]

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  • MyDel 13.8 Volt 30 Amp Switching Power Supply Unit – Dave 6

    MyDel 13.8 Volt 30 Amp Switching Power Supply Unit – Dave 6

    MyDel 13.8 Volt 30 Amp Switching Power Supply Boxed and Unused  ML&s  Price  £80  Only   £40 Tel:  0131 539 2858 Dave […]

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  • 2 ICOM SP-38 Speakers Matching IC-7300 & IC-9700 – Dave 6

    2 ICOM SP-38 Speakers Matching IC-7300 & IC-9700 – Dave 6

    2 x  SP-38  Icom Speakers  Matching  IC- 7300  &  IC- 9700 Boxed as New   ML&s  Price £156 Each             […]

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  • 21 Aug 2025 – Steel Ammo Box – £25 – Pete GM4BYF

    21 Aug 2025 – Steel Ammo Box – £25 – Pete GM4BYF

    For sale: Steel ex army ammunition box. Useful for carrying tools etc. Two handles. 58 x 26 x 26 cm  […]

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  • 17 Aug 2025 – Badger Boards HF Antenna – Norman Stewart GM1CNH

    Badger Boards HF Antenna – wideband folded dipole antenna with balun; N(f) connector; heavy duty centre spacer; termination resistor; 1.5MHz […]

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  • 2 Aug 2025 – ICOM R100 Receiver – Pete GM4BYF

    2 Aug 2025 – ICOM R100 Receiver – Pete GM4BYF

    ICOM – R100 General coverage receiver in excellent condition with all accessories and handbook.  Covers 100kHz to 1.8GHz – AM, […]

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  • 29 Jan 2025 – Pub Night at Wee Bennets Bar

    29 Jan 2025 – Pub Night at Wee Bennets Bar

    29 Jan 2025 – Pub Night at Wee Bennets Bar  

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  • 26 Feb 2025 – Frequency Standards for General Use – What do we really need? – Brian Flynn GM8BJF

    26 Feb 2025 – Frequency Standards for General Use – What do we really need? – Brian Flynn GM8BJF

    26 Feb 2025 – Frequency Standards for General Use – What do we really need? – Dr Brian Flynn GM8BJF […]

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  • 22 Jan 2025 – The Moxon Beam – Theory & Demo – Malcolm Hamilton GM3TAL.

    22 Jan 2025 – The Moxon Beam – Theory & Demo – Malcolm Hamilton GM3TAL.

    Malcolm described the theory and practice of the Moxon beam for 4m, 6m and 10m and attempted a demo with […]

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  • 8 Jan 2025 – LRS Video Night at Edinburgh Cine & Video Society

    8 Jan 2025 – LRS Video Night at Edinburgh Cine & Video Society

      LRS Video Night at Edinburgh Cine & Video Society, 23A Fettes Row, Edinburgh – Peter Dick GM4DTH. The first […]

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  • 11 Dec 2024 – LRS Xmas Curry

    11 Dec 2024 – LRS Xmas Curry

    The LRS 2024 Xmas Curry was held as usual at the Gurkha Restaurant in Cockburn Street with a great turnout […]

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  • 27 Nov 2024- “Tracking the Future – Satellites & Celestia-UK” – Dr Carol Marsh

    27 Nov 2024- “Tracking the Future – Satellites & Celestia-UK” – Dr Carol Marsh

    Report on this very interesting talk.                             […]

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  • 21 Nov 2024 – Getting Started on 23cm – GM3TAL-GM8BJF-GM8OTI Sked Report by John Cooke GM8OTI

    Three LRS members were on the air on 23cm (1296MHz) this evening, 21st November. Malcolm GM3TAL had given a talk […]

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  • 13 Nov 2024 – “WSPR – A Tool to Study Propagation and Aerial Development” – Peter Dick GM4DTH

    13 Nov 2024 – “WSPR  – A Tool to Study Propagation and Aerial Development” – Peter Dick GM4DTH

    “WSPR was created as a propagation studies tool by the use of multiple beacons in conjunction with globally-located receivers. It […]

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  • Sat 9th Nov 2024 – GMRT-2024 – Scottish Microwave Round Table

    Sat 9th Nov 2024 – GMRT-2024 – Scottish Microwave Round Table

    GMRT-2024, an event of the UK Microwave Group, was largely organised by LRS members, especially the lecture program (Pete Bates […]

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  • 30 Oct 2024 – Autumn Pub Night at Wee Bennet’s Bar

    30 Oct 2024 – Autumn Pub Night at Wee Bennet’s Bar

    Good turnout at Wee Bennet’s for one of James’s famous “5th Wednesday of the Month” pub nights. John GM8OTI, John […]

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  • Sun 27 Oct 2024 – Good LRS attendance at busy Gala Rally

    Sun 27 Oct 2024 – Good LRS attendance at busy Gala Rally

    The Volunteer Hall, Galashiels. Colin GM4HWO reports a very good turnout of LRS members at the 2024 Galashiels Rally: Colin […]

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  • 19 Oct 2024 – SOLAR MAX HAS ARRIVED

    19 Oct 2024 – SOLAR MAX HAS ARRIVED

    19 Oct 2024 – SOLAR MAX HAS ARRIVED: It’s official. NASA and NOAA announced this week that Solar Maximum has […]

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