Welcome to the Lothians Radio Society

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At the meeting of the LRS on Wed 14th Nov 2018 Prof Joe McGeough talked about 'Why Churchill Waged R.V. Jones' "Most Secret War".

During his darkest hours Prime Minister Winston Churchill turned to a young scientist, R V Jones, still in his twenties, to explain how enemy bombers were able to carry out precision bombing over Britain at night even when the skies were covered in clouds, and to find a solution. Using information from Bletchley Park and the Enigma machine there Jones provided the answers. It was the start of a close working relationship between the elderly statesman and the young scientist. Later in the war Jones devised “ Window “ using Aluminium foil to confuse the enemy radar during the D Day landings.

 

Click for Full Report.

Joe last spoke to the LRS in January 2017, about the Williamson Amplifier. (Click for report).

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NEXT MEETING

 Wed 28th Nov 2018, Braid Hills Hotel

RSGB Convention Video Lectures, titles TBA

Presented by Brian Flynn GM8BJF

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Click on item to open. Send items to GM3PSP.

Archived as News or Silent Keys in LRS Archive

1. RADIO NEWS ITEM

 

2018-12-12 LRS Christmas Curry will be at Gurkha Restaurant (click for menu), 25-27 Cockburn St, near Waverley Stn, 7:30 for 8pm Wed 12th December. Restaurant drinks pay-as-you-go. Drinks beforehand from 6:15pm at Wetherspoon's pub - The Booking Office, 17 Waverley Bridge.

RSVP to Mike MM0MLB by Sunday 9th Dec.

2. SILENT KEYS (Click item for full SK). 

3. ITEMS FOR SALE  (Click item for details)

2018-11-05 Yamaha R-N402D Natural Sound Network Receiver - Dave GM6KGZ  

                                                 

2018-10-27 HRO Receiver, mod. front end - £50 ono - John GM4XZN. (Library photo).

2018-06-05 UPDATED List from Norrie GM1CNH 

4. ITEMS WANTED

5. NEW ON LRS WEBSITE

2018-05-10 LRS Archive - "Edinburgh Radio Clubs" is now being compiled.

Hope to get back to this now the winter is starting and all the summer jobs are history!

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LRS Members James Gentles GM4WZP and Andy Sinclair MM0FMF did an audience brainstorming session on the design of a portable antenna for 13cm.

Members of the LRS again organized the Scottish Microwave Round Table on 3rd November 2018 at the Museum of Communication in Burntisland. This enjoyable event, chaired by Martin Hall GM8IEM, was attended by 34 from all over the UK and there were 19 at the dinner afterwards in the Kingswood Hotel, with an auction by Roger Blackwell GM4PMK.

1. 3cm Beacon Update - David Anderson GM6BIG.

2. NI Beacon Cluster - Gordon Curry GI6ATZ

3. Deep Space Project - John Cooke GM8OTI

4. 13cm SOTA Update - Andy Sinclair MM0FMF

5. Crowd Design of a 13cm Portable Antenna - James Gentles GM4WZP and Andy Sinclair MM0FMF 


LRS President Brian Flynn GM8BJF (R) presented the GMRT Construction Trophy to Peter Howson GM8GAX (Alloa) for his reflectometer for 70cm, 23 cm & 13 cm.

Full report with photos on the GMRT website soon.

 

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SWR bridge circuit discussion

At the meeting on 24th October David Stockton GM4ZNX (our resident radio genius) attempted to answer any (radio) questions that members were brave enough to ask. Click for Report.

Log-Periodic Antenna characteristics.

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In addition, the two trophies won by the LRS GM3HAM Contest Group in RSGB VHF NFD 2018 in July were on display - the Martlesham Trophy & Cockenzie Quaich. A group photograph was taken of the GM3HAM/P operators present, holding the trophies. Alan GM3PSP, Pete GM4BYF, Brian GM4DIJ.

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The LRS Autumn 2018 Surplus Equipment Sale was held on 17th October at St Fillan's Church, Buckstone. There was a good turnout and lots of ju.. surplus equipment was sold.

 

The sale included many items from Silent Key John Royston Buchanan GM8BYF. 

Click for photos.

 

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At the joint meeting of the LRS and the Museum of communication on 26th September 2018 in Burntisland Karl Weibye  talked about:

The X Factor - a presentation of the all-singing, all-dancing Linux computer operating system and its relationship to OSX, Unix and Microsoft X'

Karl managed his own IT company for over 20 years until his retirement, supplying PC-based networks to industry. Although a Microsoft Gold Certified Partner for most of his business career, he now works almost exclusively with Linux, in its many flavours.

Karl’s talk “The X Factor” was a short introduction to an alternative world for home computer users, in which one can save (lots of) money, avoid viruses and malware, experience problem-free computing and learn a little self-reliance, using the Linux operating system. It also included a number of live demonstrations.

Click for Full Report.

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Dr. Brian Flynn GM8BJF, re-elected as President of the Lothians Radio Society at the AGM on 13th June, gave his Presidential Address at the first meeting of the new club year on 12th Sept 2018 at the Braid Hills Hotel.

Brian's title was:

"Personal Beacons - Arduinos & Others".   

 Hardware of 10GHz beacon built by GM8BJF, installed at GM3WOJ, Invergordon. (audible in Edinburgh).

 

Map showing GM microwave beacons.

Click for Full Report with all Brian's slides.

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Peter GM4DTH, Danny GM6CMQ, Mike GM4IGS, Norrie GM1CNH, Brian GM4DIJ, Andy MM0FMF

The GM3HAM contest group of the Lothians Radio Society operated GM3HAM/P in the Open section of the 2m Trophy contest on 1-2 Sept 2018 from our usual site near Gatehouse of Fleet in Dumfries & Galloway. Wx was 'damp & claggy' with intermittent rain.

Definitely 'damp & claggy'! 

Map of QSOs.    Submitted score:

231 QSOs, 80,986 pts, best DX: OZ1BEF JO46oe 850km

(No. of QSOs similar to last two years).

Click for Full Report with many photos.

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  1. Wed 4th July 2018 - LRS Summer Barbecue
  2. July - August 2018 - LRS Pub Nights at "Wee" Bennets Bar
  3. 6-8th July 2018 RSGB VHF NFD at Gatehouse of Fleet
  4. Wed 23rd May 2018 - Direction Finding Contest - GM3HAM/P