What is an End Fed Half Wave (EFHW) It’s a multi-band antenna that is a half-wave on the lowest band of your choice. The simple calculation is 144 / f (MHZ) 3.6 MHz = 144/3.5 = 41.15m of wire So we can construct a simple, handy table for construction Freq Length 3.6 MHz 41.15 m […]
New to amateur radio, or a seasoned operator some people have never experienced the fun of operating out portable. The thrill of operating in a low noise environment. VHF/UHF If you going to take out your VHF/UHF handy, make sure you have a good antenna fitted. The stock antenna or the fake cheapo antenna on […]
Portable operating in the summer can be one of the main attractions of contesting. Not only do you get the chance to enjoy the summer, but a chance to try things you cant do at home. Like many, home comes with a considerable amount of man made noise, operating in the middle of a field […]
This was our first opportunity to go portable VHF this year, making the most of a very warm February afternoon. The RSGB run a series of contests thought the year, and this was the ideal opportunity to put on the club call M0SNB. We operated from the Secret Nuclear Bunker near Kelvedon Hatch, using the […]
I once again took part with the in the 50MHz trophy cup with the SNBCG, the contest runs for 24 Hrs from 3 PM on Saturday. This year the contest had been booked for one of the hottest days of the year, with temperatures reaching 30C (around 220F in old money) We set up Saturday morning, […]
Sunday 11th June was the #2 backpackers, hill toppers and QRP contest. The RSGB contest ran from 10 till 2 PM and had two categories 25w or 5w. I decided to enter the 25w category, the radio had to be battery powered and the power limit was 25w. The antenna was a 9e tonna mounted […]