Welcome to the Lothians Radio Society

Scottish Charity number SC045038

  • 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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  • 22 May 2013 – restoring the R1155 / T1154 Part 2 by Ian Ropper GM0UHC

    22 May 2013 – restoring the R1155 / T1154 Part 2 by Ian Ropper GM0UHC

    Ian Ropper GM0UHC returned to the Lothians on 22nd May 2013 to present Part 2 of his talk “Restoring the R1155 / […]

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  • 4-5 May 2013 RSGB Microwave Trophy

    4-5 May 2013 RSGB Microwave Trophy

      L-R: Robin GM4YPL, Chris MM0ZCT, Andy MM0FMF, Pete GM4BYF, Alan GM3PSP, Brian GM8BJF, John GM8OTI. Seven members of the […]

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  • D/F Hunt – Wed 8th May 2013

    D/F Hunt – Wed 8th May 2013

    The brave souls who made it to the Fox station half-way up Caerketton Hill. The annual LRS Direction Finding Contest was […]

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  • 24th April 2013 – Code Breakers – Video Evening

    24th April 2013 – Code Breakers – Video Evening

    At the meeting of the Lothians Radio Society on 24th April 2013 an American-made video of the work of Code Breakers was shown. It […]

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  • LRS Members at Norbreck Rally, Blackpool on 7th April 2013

    LRS Members at Norbreck Rally, Blackpool on 7th April 2013

    On the Sunday, as well as attending the rally, John GM8OTI worked GM0USI on the Mull of Galloway on 10GHz […]

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  • 10th Apr 2013 – An Evening with Microwaves by GM8OTI & GM8BJF

    10th Apr 2013 – An Evening with Microwaves by GM8OTI & GM8BJF

    The LRS had an Evening with Microwaves presented by Brian GM8BJF and John GM8OTI on 10th April 2013. They described how they designed, constructed […]

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  • Wed 3rd April – Surplus Equipment Sale

    Wed 3rd April – Surplus Equipment Sale

    There was an excellent turnout of 29 for the Lothians Radio Society Spring Junk Sale on Wednesday 3rd April 2013 at St Fillan’s […]

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  • Wed 27th Mar 2013 – The Sinking of the Flying Enterprise – Angus Annan MM1CCR

    Wed 27th Mar 2013 – The Sinking of the Flying Enterprise – Angus Annan MM1CCR

    Angus Annan MM1CCR talking to the Lothians Radio Society Angus Annan MM1CCR, former President of the RSGB, gave a great talk […]

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  • 13th March 2013 – The Changing Face of Antarctic Communications by Mike GM0HCQ

    13th March 2013 – The Changing Face of Antarctic Communications by Mike GM0HCQ

    Mike Gloistein GM0HCQ talked on “From Morse Code to the Worldwide Web – the Changing Face of Antarctic Communications” at the Lothians […]

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  • SILENT KEY – Pat Hawker G3VA

    SILENT KEY – Pat Hawker G3VA

    Radio amateurs around the world will be saddened to learn of the death of Pat Hawker MBE, G3VA, on 21 […]

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  • 27 Feb 2013 – VHF Tracking by Stan Frey GM8ZQY

    27 Feb 2013 – VHF Tracking by Stan Frey GM8ZQY

    A vehicle-mounted tracking display. At the meeting of the LRS on 27th Feb 2013 Stan Frey GM8ZQY talked about VHF Tracking. His comprehensive presentation covered tracking […]

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  • 13 Feb 2013 – Wire Antennas for HF by GM3TAL

    13 Feb 2013 – Wire Antennas for HF by GM3TAL

    Malcolm’s Delta Loop wire antenna for 28MHz At the meeting of the Lothians Radio Society on 13th February 2013 Malcolm Hamilton GM3TAL, who […]

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