Antennas By N6LF

Antenna design ideas for radio amateurs by Rudy Severns N6LF

QEX Appendices

I will have an article on radiation resistance and ground loss resistance for verticals in the July/August and September/October 2015 issues of QEX.  For anyone who wants more detailed background information for the article there are four appendices:

Download QEX Appendix A

Download QEX Appendix C

Download QEX Appendix D

GL and 73, Rudy N6LF

June 23, 2015 in 630m antennas, ARRL antenna articles, Article supporting information, Design of radial ground systems, Measurement of soil characteristics, Short antennas | Permalink | Comments (0)

Radiation and ground loss resistances in verticals

Over the years I've had a continuing interest in vertical antennas and the many small details of how they work.  Most of the time the minutia are not of great practical importance but for those of us interested in more than casual explanations they can be very interesting.  Here is a two part QEX article on just such a detail, how the radiation resistance (Rr) and the equivalent ground loss resistance (Rg) behave as the antenna dimensions and soil characteristics are varied:  Download QEX Jul-Aug 2015  Download QEX sept-oct 2015 .  As mentioned in a earlier post, I can't put all the supporting details in a single article, it would become unreadable so I've put the supporting material into a series of appendices which you can pick through if you're interested:

Download Rr Study Appendix A

Download Rr Study Appendix B v2

Download Rr Study Appendix C rev 1

Download Rr Study Appendix D

April 06, 2015 in 630m antennas, ARRL antenna articles, Article supporting information, Design of radial ground systems, NEC modeling, Short antennas | Permalink | Comments (0)

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