I'm continuously seeking a better LFMF receiving antennas. I've tried many different kinds but had not tried a simple loop lying on the the ground, a LOG. I had been very skeptical of these but tried one anyway. The result, at least for me at my QTH, was very successful. Here is a note showing the details along with WSPR comparisons between antennas over different paths: Download 630m LOG notes . I'm not suggesting this is an antenna for everyone but as shown in the note it works great for me.
Antennas
Antennas are a rich field for investigation and innovation, even after more than a hundred years. Since I was first licensed over 65 years ago antennas have been my passion and over the years I've published articles on antennas and notes. Amateurs rarely design and build their own equipment these days but antennas are very often home brewed and provide a means for improving station performance at modest cost. 60 years ago Tom Erdmann, W7DND(SK), told me that if I had $100, I should spend the first $90 on the antenna, the next $9 for the receiver and the final $1 on the transmitter. Of course prices have gone up bit but those proportions are still sound advice. I can honestly say I have a lot more time and effort invested in my antennas than in station equipment. This web site provides access to my articles and notes. The work reported here is a mix of analytic (calculations), NEC modeling and field experiments on actual antennas. Each of these has it's place but the best picture emerges when all three techniques are combined.
Please note, I try to close each post to comments. Once in a while I forget to push the right button and a post may be open. However, I assume I'm perfect and always have the posts closed, so I don't look for comments.
October 17, 2006 in Introductory comments | Permalink | Comments (0)