Also in GB2RS this week…
The RSGB has released a further three presentations from its 2023 Convention. In the first, Professor Simon Watts, G3XXH gives a fascinating presentation about VHF airborne radar and the design and performance of these early systems in World War II. The other two presentations focus on the World Radiosport Team Championship which the UK will be hosting in 2026. The WRTC is held every four years and is considered to be the Olympic Games of radio contesting. At the RSGB Convention, WRTC Chair Mark Haynes, M0DXR gave an overview of what is being planned and how people can get involved either as a spectator, volunteer, competitor or referee. John Warburton, G4IRN gave his perspective on what it is like to be a WRTC referee. The full WRTC planning team also gave an update recently on an RSGB Tonight@8 live webinar. You can see all of these presentations on the RSGB YouTube channel
RadCom Basics aims to help newcomers to amateur radio develop their knowledge and experience. Others enjoy reading it as it helps remind them of things they have forgotten, or to practise a skill they have not used for a while. The January 2024 issue of RadCom Basics is now available. It contains articles that provide advice on getting started with UK Bunkers on the Air (UKBOTA), working on the 160 and 80m bands, constructing a multi-band vertical antenna, and more. You can find RadCom Basics at rsgb.org/radcom-basics.
The latest issue of RadCom Plus, the online magazine for the more technically minded radio amateur, was published this week. The first article, by Tom Alldread, VA7TA, is about how to make a protection filter for an SDR or VNA. Following this is a contribution from Sheldon Hutchison, N6JJA who discusses how to make a really effective antenna noise canceller. You may recall the article by Andy, G0FVI in October’s RadCom which discussed the principles of antenna noise cancellation. Sheldon investigates exactly how the canceller should work, and his investigations have resulted in his superior design which you can construct for yourself. The third article, by Michael Toia, K3MT, is all about understanding the relationship between a train of square pulses and the harmonic content of its frequency spectrum, not with complicated mathematics, but by using an entirely diagrammatic approach. Those less familiar with mathematics might especially find this article helpful. This issue of RadCom Plus ends with Andy Nehan, G4HUE discussing the design of analogue power supplies. Members of the RSGB can access RadCom Plus via the website
Category: GB2RS Headlines
