Scottish Charity number SC045038
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LRS Messages of the Day
Wed 19 Mar 2025 – LRS – Net 174 – 20:00h 144.350MHz SSB
TODAY – Sat 15 Mar 2025 – MOC – Wartime Centimetre Wavelength Airborne Radar Development – Dr Peter Grant, UoE – see 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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Wed 26 March – “80 years of Airborne Radar – From the Cavity Magnetron to Multi-Function RF Systems”
Dr Iain Scott FREng, VP Capability & Chief Technology Office at Leonardo Electronics Division.
The talk will explore key milestones in the developments of airborne radar, from the development of the Cavity Magnetron at Birmingham University during WW2, through to the advent of Multi-Function RF Systems. It will be illustrated with a selection of Edinburgh-developed radars spanning the Ferranti, GEC, Marconi and Leonardo eras.
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Wed 19th March 2025 – Net #174 at 20:00h on 144.350MHz SSB.
RECENT MEETINGS
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12 March 2025 – Amateur Radio in Colombia – Norman HK3/MM0BMG.
Report soon. Norman talked about his experiences operating in Colombia with reciprocal… Read more
RALLIES AND OTHER EVENTS
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Sat 5 Apr 2025 – 26th GMDX Convention & Dinner
- King Robert Hotel, Bannockburn, on Sat 5 Apr 2025. – Click for Program
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Sun 13 April 2025 – NORBRECK Rally, Blackpool
Click the image for the NARSA link
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Sun 18 May 2025 – Glasgow Braehead Rally
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Sat 1 Nov 2025 – Scottish Microwave Round Table (GMRT 2025)
GMRT-2025, – Saturday 1 Nov, Museum of Communication, Burntisland; dinner at the Kingswood Hotel. More information in June/July GM4HWO.
CONTEST CALENDAR
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The LRS normally operates as GM3HAM/P from a site near Gatehouse of Fleet in Dumfries & Galloway.
3-4 May 2025 – May VHF/UHF Contest – LRS entry unlikely due to rule changes. Norman MM0BMG is asking if anyone is interested at Gatehouse of Fleet?
5-6 July 2025 – VHF NFD – organized by Pete GM4BYF & Colin GM4HWO.
6-7 Sept 2025 – 2m Trophy – undecided at present.
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 144.575MHz 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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11 March 2025 – Ferranti Edinburgh Radio Club (FERC) Re-Established
Ferranti Edinburgh Radio Club (FERC) – Call sign GS4FER. After many years absence, the Ferranti Edinburgh Radio Club (FERC) was re-established […]
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13 Feb 2025 – WSPR Beacon HK3LRB Installed in Bogota, Colombia by Norman MM0BMG
A WSPR beacon was donated to and installed at the premises of La Liga de Radioaficionados de Bogota (LRB) […]
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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22 Feb 2025 – Triangular Mast 15m FREE to Pick up
Sat 22 Feb 2025 – 15m Tower : dismantled 2 sections x 7m triangular 0.5m. FREE to pick-up from Tom […]
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29 Jan 2025 – Uniden Bearcat BCT 15X Desktop Scanner – Dave 6
Uniden Bearcat BCT 15X Desktop Scanner For Sale by Dave GM6KGZ See attached files for details. Boxed and in mint […]
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8 Nov 2024 – Equipment for Sale by Norman MM0BMG
MM0BMG Equipment Sale – Updated: 8 November 2024 Item Description Price Alinco HF Mobile Whip Antenna 2.7 m mobile whip; […]
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22 Nov 2024 – Tecsun PL990x Multiband Portable Radio plus Active Antenna – PRICE REDUCED TO £90 TO CLEAR – Dave 6 GM6KGZ
Tecsun PL990x – Multiband Portable Radio, boxed and in mint condition ML&s price £269. NOW ONLY £90 TO CLEAR for […]
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31 Oct 2024 – Avantree Portable Digital Radio with 30W Speakers – Dave-6
2. Avantree PowerByte Portable Digital FM Radio with 30W Speakers. Boxed and in mint condition – £40 Tel: 0131 […]
Lothians Radio Society activities – latest reports
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19 Apr 2011 – MOC Goudie Lecture – Defending the Forth 1914-1945
LRS Members are invited to attend the Goudie Lecture “Defending the Forth 1914-45” by Geoffrey Stell, at the Museum of […]
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Japan Earthquake – Emergency HF Frequencies to Avoid
Lothians RAYNET has advised us of the following: HF frequencies are now known to be in use by Japanese amateurs […]