Welcome to the Lothians Radio Society

Scottish Charity number SC045038

  • LRS Messages of the Day

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

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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 […]

    Read more

  • 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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There are no current silent key notifications. Click on the heading to see the silent key archive.

  • 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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  • 1-3 July 2022 GM3HAM/P – RSGB VHF-NFD – Gatehouse

    1-3 July 2022 GM3HAM/P – RSGB VHF-NFD – Gatehouse

    Ian GM3SEK & John 2M0JTU operating 2m. GM3HAM/P was operated in RSGB VHF NFD from our usual site in the […]

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  • 15 June 2022 LRS BBQ 2022 at “Bates Motel”.

    15 June 2022 LRS BBQ 2022 at “Bates Motel”.

    There was an excellent turnout of 18 and good weather for the LRS BBQ on 15 June at “Bates Motel” (QTH GM4BYF & […]

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  • 8 June 2022 LRS AGM 2022

    8 June 2022 LRS AGM 2022

    AGM:  attendance about 10 incl. 3 on Zoom. President Colin Wright GM4HWO reported a good year of meetings post-Covid. James […]

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  • 25 May 2022 – LRS DF Hunt

    25 May 2022 – LRS DF Hunt

    The 2022 LRS D/F Hunt on Wed 25 May, started at the Tardis on Braid Hills Road with Fox, Peter Dick GM4DTH operating […]

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  • 20-22 May 2022 2m Trophy GM3HAM/P – Gatehouse

    20-22 May 2022 2m Trophy GM3HAM/P – Gatehouse

    RSGB 2m TROPHY, Open Section GM3HAM/P at Gatehouse of Fleet. Organizer: Norrie GM1CNH. Chief cook: Colin GM4HWO.  Submitted score: 167 […]

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  • 11 May 2022 – Members’ Timed Talks

    11 May 2022 – Members’ Timed Talks

    11 May 2022 – Members’ Timed Talks. There were 7 speakers, all of whom kept within the generous 4 mins […]

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  • 24 Apr 2022 – Norbreck (Blackpool) Rally

    24 Apr 2022 – Norbreck (Blackpool) Rally

    A number of LRS members  attended the 2022 Norbreck Rally, as usual. LRS group in the bar, the night before.  […]

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  • 20 Apr 2022 – LRS Spring Surplus Equipment Sale

    20 Apr 2022 – LRS Spring Surplus Equipment Sale

    The LRS 2022 Spring Surplus Sale was held on Wed 20th April 2022 at St Fillans Church, Buckstone, organized by Colin GM4HWO.  […]

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  • 6 Apr 2022 – LRS Video Night – Peter Dick GM4DTH

    6 Apr 2022 – LRS Video Night – Peter Dick GM4DTH

    Video Night 2022 by Peter GM4DTH at ECVS. ‘The Secret Wireless War – Black Propaganda’ (Grindlewald Productions) The RCA 600kW […]

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  • 23 Mar 2022 – Bletchley Park, Section VIII – Malcolm Fergusson.

    23 Mar 2022 – Bletchley Park, Section VIII – Malcolm Fergusson.

    Malcolm Fergusson talked about the Ultra secret (the WWII German communications decoded at Bletchley Park) and the SCU-3 (Special Communications […]

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  • 9 Mar 2022 Astrodynamics without the Mathematics – How to Fly Spacecraft – John Cooke GM8OTI

    9 Mar 2022 Astrodynamics without the Mathematics – How to Fly Spacecraft – John Cooke GM8OTI

    At the LRS meeting on 9 Mar 2022 at the Braid Hills Hotel, and on Zoom,  John Cooke GM8OTI  talked […]

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  • 23 Feb 2022 – OpenEMS, a Free Electromagnetic Simulator – Brian Howie GM4DIJ

    23 Feb 2022 – OpenEMS, a Free Electromagnetic Simulator – Brian Howie GM4DIJ

    LRS member Brian Howie GM4DIJ talked about OpenEMS, a Free Electro-Magnetic Simulator at the LRS meeting on 22 Feb 22 […]

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