On 5/5/00 10:49 AM, Jon Ogden at jono@enteract.com wrote:
>> Which raises an interesting question -- is a multi-band dipole (ie one
>> with elements for one or more of 160, 80, 40) fed with the same feedline
>> disqualifying? It certainly has multiple elements....
>
>Ah, but there is a twist here. If my dipole works (which it does) on
>80,40,30,17, and 12 meters, only ONE element is really active per band.
>When I operate on 40 meters, the 80 meter portion is trapped out and the
>elements that are for the other bands and not of proper electrical length
>for 40 meters so they can really be ignored for all practical purposes since
>they aren't resonant elements. The additional "elements" certainly don't
>enhance the performance of the antenna, but rather probably make the
>performance a little worse if anything. There is no tactical advantage to
>using them.
But you just said that the rule doesn't consider the electrical
characteristics of the antenna, only its physical characteristics. QED.
Bill Coleman, AA4LR, PP-ASEL Mail: aa4lr@radio.org
Quote: "Boot, you transistorized tormentor! Boot!"
-- Archibald Asparagus, VeggieTales
--
CQ-Contest on WWW: http://www.contesting.com/_cq-contest/
Administrative requests: cq-contest-REQUEST@contesting.com
|