[TowerTalk] Revisions to the quad feed item at the site

[L. B. Cebik]

I have revised the quad feed notes (4a under the quad model heading) to
reflect the fact that in-phase feeding of the top and bottom of a quad
loop should NOT use a twisted line to one half.  My thanks to Harmut
Waldner for spotting my succumbing to the temptation of a certain
convention for modeling quad loops that works ok for single feed quad
loops but not for phase-fed loops.  I shall like do an antenna modeling
column next year (not so very far away) on phase feeding loops and the
like.

Simple test:  if the resistive factor is almost nil with nothing but
reactance, you have 1 too many half twists somewhere.

-73-

LB, W4RNL

L. B. Cebik, W4RNL         /\  /\     *   /  /    /    Tel: (865) 938-6335
1434 High Mesa Drive      /  \/  \/\     ----/\---    http://www.cebik.com
Knoxville, Tennessee     /\   \   \ \   /  / || /    e-mail: cebik@utk.edu
37938-4443     USA      /  \   \   \ \       ||     e-mail: w4rnl@arrl.org




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