Welcome to the Lothians Radio Society

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  • 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).

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 […]

    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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  • 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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  • 9 Feb 2022 – The History of the Pocket Calculator – 5000 years and counting – James Gentles GM4WZP

    9 Feb 2022 – The History of the Pocket Calculator – 5000 years and counting – James Gentles GM4WZP

    On Wed 9th Feb 2022 at the Braid Hills Hotel James Gentles GM4WZP (HP-retired) gave a great talk on the […]

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  • 26 Jan 2022 – Using a VDA on a Scottish Beach Pt.2 – Malcolm Hamilton GM3TAL

    26 Jan 2022 – Using a VDA on a Scottish Beach Pt.2 – Malcolm Hamilton GM3TAL

      Malcolm talked (on Zoom) about using vertical dipole arrays from the shores of Loch Fyne. He had operated in […]

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  • 12 Jan 2022 – Pirates – Offshore Radio 1974-1984 – James Gentles GM4WZP

    12 Jan 2022 – Pirates – Offshore Radio 1974-1984 – James Gentles GM4WZP

    James Gentles GM4WZP gave a repeat on Zoom of his talk from 8th Nov 2017 on the history of pirate […]

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  • 20 Jan 2022 – New GM3VLB SOTA Islands Award – LRS

    20 Jan 2022 – New GM3VLB SOTA Islands Award – LRS

    André GM3VLB/P on the Flannan Isles 1999. André Saunders GM3VLB (SK) was active in many countries as GM3VLB, G3VLB, 5Z4KL […]

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  • 10 Nov 2021 – Getting Started with WSPR – Colin Murray GM4EAU

    10 Nov 2021 – Getting Started with WSPR – Colin Murray GM4EAU

    Wed 10th November 2021 :  Near Real-Time Propagation Measurement : Getting Started with WSPR – Colin Murray GM4EAU.     Precis: An […]

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  • 20 Oct 2021 – LRS Autumn Surplus Equipment Sale

    20 Oct 2021 – LRS Autumn Surplus Equipment Sale

    The LRS autumn Surplus Equipment Sale was held on 20th October 2021 at St Fillan’s Church, as usual. This year […]

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  • 6 Oct 2021 – 122GHz – Pete Bates GM4BYF & Brian Flynn GM8BJF

    6 Oct 2021 – 122GHz – Pete Bates GM4BYF & Brian Flynn GM8BJF

    Brian GM8BJF & Pete GM4BYF Pete, assisted by Brian, described the building and operation of their VK3CV TRA-120 122GHz transverters […]

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  • 12 Aug 2021 LRS Perseids BBQ

    12 Aug 2021 LRS Perseids BBQ

    The LRS 2021 Summer “Perseids” barbecue was held at “Bates Motel”, QTH of Pete GM4BYF & Kay Bates GM6KAY,  and […]

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  • 28 July 2021 – LRS D/F Hunt

    28 July 2021 – LRS D/F Hunt

    The 2021 LRS DF Hunt on Top Band was held on 28th July, starting from the “Tardis” on Braid Hills […]

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  • 2-4 July 2021 – GM3HAM/P – VHF NFD – Gatehouse of Fleet

    2-4 July 2021 – GM3HAM/P – VHF NFD – Gatehouse of Fleet

    The LRS GM3HAM Contest Group again took part in RSGB VHF NFD from Gatehouse of Fleet on 6m/4m, 2m & 70cm. […]

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  • 14 -16 May 2021 – GM3HAM/P – RSGB 2m Contest, Gatehouse of Fleet

    14 -16 May 2021 – GM3HAM/P – RSGB 2m Contest, Gatehouse of Fleet

    Peter GM4DTH and Brian GM4DIJ Back to our favourite site, on a hill-top near Gatehouse of Fleet. Peter GM4DTH described […]

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  • 4-6 Sept 2020 – LRS GM3HAM/P – RSGB 2m Trophy, Gatehouse of Fleet

    4-6 Sept 2020 – LRS GM3HAM/P – RSGB 2m Trophy, Gatehouse of Fleet

    The LRS GM3HAM/P contest group were active during the 2m Trophy Contest from our usual site near Gatehouse of Fleet […]

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