>What you are experiencing is "normal". It's normal because non-commercial
>phasing systems are traditionally done (incorrectly) by just connecting a
>certain length cable, and expecting a phase shift that is always related to
>the cable's electrical length. That's only true under a narrow set of
>conditions that usually are not met in most simple systems. It certainly is
>not met in the system you described.
Tom, could you elaborate on this? What's incorrect about it? Are systems
based on hybrid couplers like Comtek's "incorrect"? They certainly exhibit
mutual coupling between the elements, requiring that they be tuned lower
than the desired frequency.
73, Dick, WC1M
--
FAQ on WWW: http://www.contesting.com/towertalkfaq.html
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
Search: http://www.contesting.com/km9p/search.htm
|