11 March 2015 - Antenna Modelling - Brian Howie GM4DIJ

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Last Updated on Saturday, 28 February 2015 09:40

Written by Alan GM3PSP

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Brian Howie GM4DIJ will talk about Antenna Modelling at the next meeting of the LRS on Wednesday 11th March 2015 at 7:30 for 8:00pm in the Regent Room at the Braid Hills Hotel.

Brian writes: The design and building of antennas at one time required vast testing ranges with expensive equipment. Analysing  and optimising antennas once took many hours of  painstaking measurements, hand calculation (if you understood the maths)  and modifications with no real guarantee of success.

The advent of powerful home computers and cheap or even free software means that all this is in the past and radio amateurs can now confidently design  and build their own antennas as well as the professionals do.

Modern software now allows you to  determine the pattern, feed point impedance and even the SWR of your antenna system before  committing to cutting metal or hoisting wires thus avoiding expensive or time -  consuming mistakes .

25 Feb 2015 - The Cloud - Andy Sinclair MM0FMF

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Last Updated on Saturday, 28 February 2015 09:43

Written by Alan GM3PSP

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The subject of the LRS meeting on 25th February was that mysterious place where we are told we shall be archiving all our digital "stuff" in the future. LRS President Andy Sinclair MM0FMF talked about The Cloud, what it is, why it's used and whether it will rain all over your data. Not a simple subject! Full report soon. 

RADIO NEWS, SILENT KEYS & SALE / WANTED ITEMS

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Last Updated on Wednesday, 25 February 2015 12:45

Written by Alan GM3PSP

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Click on item to open. Send news items to: This email address is being protected from spambots. You need JavaScript enabled to view it.

These items will be archived as News or Silent Keys in LRS Archive.

1. Radio News Items

2. Silent Keys

3. Items for Sale

3.1 Camper Van for Sale

3.2 Silent Key Sale - GM1BID-SK (many items)

3.3. UHF Linear Amplifiers and Test Equipment - many items - UPDATED. 

4. Items Wanted

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11 Feb 2015 - Using a VDA on a Scottish Beach - Malcolm Hamilton GM3TAL

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Last Updated on Saturday, 28 February 2015 09:44

Written by Alan GM3PSP

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Malcolm Hamilton GM3TAL talked about "Using a Vertical Dipole Array on a Scottish Beach" at the LRS meeting on Feb 11th.

The vertical dipole array (VDA) has become the de facto antenna of choice for many DXpeditions to remote oceanic islands. The reasons why these antennas work well were discussed along with a brief review of the way that 2 element arrays operate.

Malcolm wanted to discover whether the VDA would work in other locations and to understand at first-hand what is needed in practice for successful operation. He described the practical construction and use of VDA antennas with Nick Henwood G3RWF (shortly after his talk to the LRS on Nov 26th) on the shores of Loch Fyne during the CQWW contest in November 2014. Malcolm reported on the outcome and offered hints for others who might be tempted to use this interesting antenna.

Full Report.

28 Jan 2015 - Maritime Mobile off the West Coast - Geoff Crowley MM5AHO

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Last Updated on Friday, 13 February 2015 12:47

Written by Alan GM3PSP

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Our good friend Geoff Crowley MM5AHO braved snowy roads on January 28th to talk about his Maritime Mobile adventures off the west coast of Scotland in 2014. Geoff, along with Mike Eccles, GM3PPE, and Matt Crowley MM1EUI, actually activated Little Cumbrae Lighthouse after having tried for 2 years in a row. Geoff and Matt then spent a week activating various other lighthouses and exploring more West Scotland coastal hideaways including the isolated West Loch Tarbert on Jura. Geoff's talk also included his crew's entry into the notoriously difficult Scottish Islands Peaks Race earlier that year where over half the boats failed to complete the 3 day race which covers 3 islands, 3 mountains, and strenuous sailing between Oban and Troon.

Click for Full Report with lots of photos and a video.

21 Jan 2015 - LRS Video Night at ECVS

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Last Updated on Wednesday, 11 February 2015 11:22

Written by Alan GM3PSP

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New Video Section on Website - contributions invited

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Last Updated on Friday, 02 January 2015 20:24

Written by Alan GM3PSP

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 One of the exciting videos now available!

A new section has been added to the LRS Archive area of this website providing links to YouTube videos of Lothians Radio Society activities and other Amateur Radio topics. We already have quite a number in both categories and will be adding more - there are lots of videos and even Super-8 movies of LRS Field Days from the 1960s onwards waiting to be uploaded.

LRS Video Archive

If you have anything of interest to provide, please contact the webmaster.

10th Dec 2014 - LRS Christmas Curry - Himalaya Restaurant

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Last Updated on Saturday, 20 December 2014 14:45

Written by Alan GM3PSP

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Colin GM4HWO, Mike MM0MLB, Peter GM4DTH, Alan GM3PSP

Sixteen LRS members and friends attended the LRS Christmas Curry on Wednesday 10th December 2014 at the Himalaya Tandoori Restaurant.

Full photo report. 

Mike GM8KCS, Peter GM4DTH, Andre GM3VLB, Pete GM4BYF, Veronica XYL-VLB.