John M0UKD and myself decided it would be fun to work a few in the VHF NFD from Mam Tor at 517m ASL. Using John’s FT 897d and 20w battery power and his 6e homebrew PEGTENNA. The walk is quite short and the “summit” is not a SOTA, its a simple walk up from the […]
Working Portable with the Homebrew 4e 21 MHz Beam
GB2NWA – North Weald Airfield Members of the HRC and LEFARS ARC operated portable from North Weald Airfield. Using a homebrew 4e 21 MHz beam we managed to work 120 station in 35 countries despite variable band conditions. The setup included a 10m pump up tower and Icom 7700 and a HAL 1200 solid state […]
Icom 7100 and WSPR 2.12
Option 1 Using WSJT-X WSJT-X supports JT65, JT9, WSPR and JT4. This may provide better compatibility than WSPR v2.12 but essentially both can work. WSJT-X has the advantage of supporting multiple modes, and also you can set the radio control to “Ham Radio Deluxe” and let HRD provide the CAT control. WSJT-X can be downloaded […]
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, […]