If you haven’t arrived here from Part 1, you may want to check this out first. Part 2 final assembly and testing. The collection of poles had been previously cut to size, this weekend was about the final assembly and mounting the driven element to facilitate testing. The beam is 3 elements and requires a […]
Tag: yagi
RSGB 21/28 MHz contest
The RSGB contest provided an ideal opportunity to focus activity on the higher HF bands. Previous John M0UKD and I had built beams for 28 MHz 3e beam and 21 MHz 4e beam using the design on DK7ZB website. 28 MHz is a compact design using a 3m boom, and 21 MHz is somewhat bigger at […]
21 MHz 4e Beam Part #3
You can read Part 1 and Part 2 of the project Part 3 Members of the Havering ARC took part in the LEFARS radio event over the bank holiday weekend 23/24/25 May provided the ideal opportunity to test the beam. George M1GEO and Chris G8OCV provided the 12m SCAM mast and so the fun began. The […]
Homebrew 21 MHz Beam Part #2
Read Part 1 of the homebrew project Now the exciting phase, nearing the end and a moment to complete the final stages. Construction of the matching phase, and mounting the driven element. The antenna feed point is 28Ω, and the method of feeding the antenna is described on DK7ZM site. Once constructed from 2 lengths […]
Homebrew Project 21MHz 4E Yagi Antenna
Months ago I ordered some aluminium in preparation for another antenna project. Wtih the assistance of John M0UKD the plan was to build a 21 MHz 4E Yagi. The aluminium was ordered from aluminium warehouse, and cost around £100 including delivery. The on-line shop provides and delivers lengths of up to 5 meters, […]