Scottish Charity number SC045038
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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
LRS meetings are normally held on the 2nd and 4th Wednesdays of each month (except July and August) at 8:00pm at the Braid Hills Hotel, 134 Braid Road, EH10 6JD.
In July and August Pub Nights are held at 7:30pm at Wee Bennet’s Bar at Morningside Station, on the 2nd and 4th Wednesdays. There are also occasional Wee Bennet’s evenings arranged during the main club season.
Most items are archived in Meeting Reports or Society Activities.
UPCOMING MEETINGS
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PLEASE NOTE LECTURE TIME IS 11:00 NOT 11:30AM.
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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.
RECENT MEETINGS
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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
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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
RALLIES AND OTHER EVENTS
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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!
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Sun 26 Oct 2025 – Galashiels Rally
Click for details.
CONTEST CALENDAR
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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).
RSGB GB2RS NEWS
Every Sunday morning in the Edinburgh area at 09:30h from LRS member Peter Dick GM4DTH. 70.425MHz FM, 145.525MHz FM & 433.525MHz FM. Then call-in to Peter at 10:00h on 145.575MHz for local net. Several LRS members often there.
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.
1. RADIO NEWS ITEMS
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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
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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
Some photos from Norman’s DXpedition to Colombia. (Norman GM1CNH & Peter GM4DTH). HK3LRB club setting up in park for […]
2. SILENT KEYS
There are no current silent key notifications. Click on the heading to see the silent key archive.
3. ITEMS FOR SALE
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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 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 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
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
ICOM – R100 General coverage receiver in excellent condition with all accessories and handbook. Covers 100kHz to 1.8GHz – AM, […]
Lothians Radio Society activities – latest reports
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UHF-Microwave Contest – 5th-6th May 2012
The GM3HAM/P UHF-Microwave Contesters 2012 planning strategy in the Gatehouse Conference Centre (aka the Masonic Arms) Last weekend, 5th – 6th May […]
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Wed 9th May 2012 – ZK2V DXpedition by Chris Tran ZL1CT / GM3WOJ
The ZK2V QTH (Photo courtesy GM3WOJ / ZL1CT) At the meeting of the Lothians Radio Society on Wednesday 9th May 2012, well-known Scottish […]
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Wed 25th April 2012 – DXCC, LOTW & 7Q7GM Malawi DXpedition by Rob GM3YTS
Rob Ferguson GM3YTS (photo courtesy QRZ.com) At the meeting of the Lothians Radio Society on 25th April 2012 Rob Ferguson GM3YTS, dedicated DXer […]
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Wed 11th April 2012 – Radioactivating East Africa in the 1960s / 70s by Andre GM3VLB
Andre’s first QSL card as 5Z5KL in Kenya At the meeting of the Lothians Radio Society on 11th April 2012 Andre Saunders […]
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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 […]
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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 […]
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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 […]
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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 […]
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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 […]
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HAPPY NEW YEAR!
(Photo by GM3PSP) A Happy New Year to all our readers! We look forward to welcoming you to the meetings of […]
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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 […]
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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 […]