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Tdonaly wrote:
What value coil does Kraus recommend, Cecil, for, say, a pair of forty meter dipoles to make them do what you want at forty meters? It's a textbook, not a cookbook, so he doesn't recommend a specific "value". The requirement is that the coil be self- resonant at the operating frequency. Quoting Kraus: "Here the (1/2WL) elements present a high impedance to the coil which may be resonated without an external capacitance due to its distributed capacitance." He says a 2-element array of 1/2WL elements has a gain of 3.8 dBi, a 3-element array a gain of 5.3 dBi, and a 4-element array a gain of 6.4 dBi. -- 73, Cecil http://www.qsl.net/w5dxp -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |