At the meeting on 24th January 2018, Neil Gillies, ex-GM6BZF, talked about and demonstrated 3D Printing, the state-of-the-art way of producing plastic parts. He gave an in-depth talk on how to get started - types of machine available, the software required for various parts of the process, materials, what can and can’t be done with 3D printing. He brought along his current 3D printer and demonstrated it in use, making a small plastic component during the meeting. Full report.

 

"Tiny Boy" 3D printer in action.

 

 

The annual Video Night, presented as always by Peter Dick GM4DTH who is the current President of the Edinburgh Cine & Video Society, was held on Wednesday 10th January 2018 in the ECVS screening room. The theme was 'The Role of Radio in Aviation'.

1. Air Ministry Official Film - The Imperial Airway - The work of British Airways. (1924)
2. Crown Film Unit - On the Beam (1951)
3. CAA - Communications in Air Traffic Control. (1970)
4. Central Office of Information CAA - Radar for Air Traffic Control (1973)
5. Volmet (1980) 

"Imperial Airways"

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Click for Full Report with many stills.

Loan DVD copies of the complete video program are available from Peter. 

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LRS member Brian Howie GM4DIJ gave an introduction to antenna modelling at the LRS meeting on 11 March 2015. This time he talked more specifically about "Optimization of Antenna Height Over Real Terrain in the Low VHF Bands" at the meeting on 22nd November 2017.

 

Brian writes: "It is common intuition that the higher an antenna is above the ground, the better it performs. Whilst this is true in most cases, the performance of an antenna a few wavelengths above ground is a complex interaction of the beam patterns and the local topography. It can be shown that in some cases a lower antenna can outperform one much higher.
I've been looking in particular at the local terrain at our contest site at Gatehouse of Fleet using an ARRL- supplied program HFTA, designed primarily for the HF Bands, to explore terrain effects on antenna performance at low VHF". Click for Powerpoint.

 

The annual LRS Christmas Curry was held on Wednesday 6th December at the Himalaya Tandoori Restaurant at Bruntsfield, with 14 diners, including a very welcome DX visitor - Eric Worley W0RLY, a United Airlines pilot between flights, who had spotted our dinner notice on this website. (On left above with Alan GM3PSP and Pete GM4BYF).  Click for More Photos.

 

James Gentles GM4WZP gave a great talk on 'Pirates - Offshore Radio from 1964 to 1974, ding-ding!' at the meeting on 8th November 2017. He covered the history of the pirate radio stations located in ships around the British Isles, including the best-known, Radio Caroline which used its famous "ding-ding" jingle. They all disappeared after the BBC introduced Radio 1 in 1974 to cater for the pop audience, and re-named the existing stations Radios 2, 3 and 4. REPORT

 

Radio London