LRS member Brian Howie GM4DIJ gave an introduction to antenna modelling at the LRS meeting on 11 March 2015. This time he will talk more specifically about "Optimization of Antenna Height Over Real Terrain in the Low VHF Bands" at the next meeting, which will be held at 7:30 for 8:00pm on Wed 22nd November 2017 at the Braids Hotel.

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". 

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

 

 

The LRS Autumn Surplus Equipment Sale was held on 18 Oct at St Fillan's Church with a good turnout and almost everything sold. Full Report.  

 

Well-known Scottish DXer Tom Wylie GM4FDM from Paisley returned to the Lothians on 25th October 2017 to talk on Having fun on a shoestring. He described how careful advance planning is essential for any DXpedition and how quite simple antennas can be very effective while saving on weight and complexity. Report

 Tom GM4FDM with Ronald PA3EWP in Dakar, Senegal in 2010. 

The GMRT speakers: Mark Hughes GM4ISM, Geoff Pike GI0GDP, Martin Hall GM8IEM (Session Chair), Andy Sinclair MM0FMF, David Anderson GM6BIG.

The 2017 Scottish Microwave Round Table was held on 4th November at the Museum of Communication in Burntisland followed by a dinner and musical entertainment at the Kingswood Hotel. Programme:

A 10GHz Home Station (Mark GM4ISM)

A High Quality 10GHz Beacon (David GM6BIG)

13cm SOTA (Andy MM0FMF & Jack GM4COX)

Replacement L.O. options for the DB6NT G2 Transverters (Geoff GI0GDP)

The GM round of the UK Microwave Group Projects Trophy was awarded to Kevin Avery G3AAF.

For full report and music video, go to GMRT website: 

http://www.gmroundtable.org.uk/ 

 

Many thanks to Tom Stevenson (2L) and the MoC volunteers for a great lunch