Practical Ham Radio Antennas
25 March 2025: new posts on small feedlines and how to measure feedline characteristics measuring your feedline adventures with small feedlines measuring velocity factor measuring characteristic impedance measuring feedline loss factors that affect feedline loss →Read more
20 February 2025: added more beginner articles on SWR and impedance, including →Read more
4 February 2025: added some additional devices to Alternatives to Knots page. →Read more
31 January 2025: added results of further testing to dipole length tables. →Read more
15 January 2025: Added a new article on tuning antennas with an antenna analyzer or VNA, discussing which of the many different possible measured parameters are most useful. →Read more
11 December 2024: added new article on simple doublet antennas →Read more
Finally got my computer issues resolved, and getting material posted. More articles in the works… 5 new pages: unconventional link dipole for 20/30/40m Beginner’s guide to antenna tuners Field Antenna support photos Loop antenna photos Bipod antenna support 2 new videos: vertically polarized delta loop 3 simple wire portable wire antennas →Read more
29 November 2023 Added RF exposure evaluation page and worksheet. All US amateurs are now required to perform this evaluation of their station under the new rules. Added a page for the Ten-Tec AC5 balanced QRP antenna tuner. In addition, I have been adding more internal and external links to my pages. This will continue […] →Read more
5 May 2023 – added Link Dipole article and more alternatives to knots. →Read more
26 March 2023: added a new Beginners’ Corner, along with a Beginners’ Guide to NVIS. This is intended to help for those who aren’t yet ready for some of the more technical articles. I’ll be adding to it over time. →Read more