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 […]
Tag: hf
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, […]
Vertical Antenna Experiments
I recently decided to purchase a remote matching unit, I had been looking for one for a while. The only options I have previously seen included the name MFJ, and I was therefore keen to see who else was in the market. I found a unit from LDG the RT-600, in theory capable of 600w […]
The Birth of a New Digital Mode SIM31
Read the article on how the mode invented by Nizar Ben Rejeb was developed, and the advantages it has over traditional PSK31. The article is available to read online. You can download a free copy of the program, and read more online at ON4NB website. A handy guide to installation can be read here. Ive been […]
Affiliated Society Team Contests 2015
The RSGB run a series of contest aimed at getting clubs active as a team. This year Havering ARC had 2 active stations, one operated by Fred G3SVK and the other by Dave M0TAZ. The contest encourages teamwork, and members can operate from home. The combined score from the team contributes to the club score […]
160m Club Calls
Last night with the able assistance of John M0UKD we attempted an entry in the 160m club calls contest. As the name suggests this is a 160m contest, designed for clubs to have teams of members on air. The exchange is a little strange, RST, Serial, (member, Club HQ or non club) and then 4 […]