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Old April 13th 05, 11:19 PM
Ken Bessler
 
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"Cecil Moore" wrote in message
...
Fred W4JLE wrote:
I am sure you did Cecil, however I understood the question to be a
shorter
single element mobile antenna.


Well, that's why I asked for a definition of "better".
And he didn't say a "single element" was better so
a 10-element beam might be the way to go. :-)
--
73, Cecil http://www.qsl.net/w5dxp


Sorry - let me elaborate *why* I posted the question.

I wanted to know if it was possible for any single mobile
antenna less than a 1/4 wave could outperform a 10m 1/4
wave whip. Like for example a loaded 5/8 wave whip.

As I understand it no whip less in size than a 1/4 wave
can be more efficiant than it's larger cousin due to resisitave
losses in the loading coil.

Right or wrong? Long answer is OK. :-)

--
73's es gd dx de Ken KGØWX
Grid EM17ip, Flying Pigs #1055,
Digital On Six #350,
List Owner, Yahoo! E-groups:
VX-2R & FT-857


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Old April 14th 05, 12:37 AM
Fred W4JLE
 
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A loading coil does not make an antenna longer. It simply cancels the
capacitive reactance of a short radiator.

A 5/8 wave is using the associated coil to match the impedance. Ergo if it
is 5/8 it can't be shorter than a 1/4 wave.

Cecil's 10 element mobile 10 meter beam aside, the answer is still NO to
your original question.

"Ken Bessler" wrote in message
news:u1g7e.14448$up2.9536@okepread01...
"Cecil Moore" wrote in message
...
Fred W4JLE wrote:
I am sure you did Cecil, however I understood the question to be a
shorter
single element mobile antenna.


Well, that's why I asked for a definition of "better".
And he didn't say a "single element" was better so
a 10-element beam might be the way to go. :-)
--
73, Cecil http://www.qsl.net/w5dxp


Sorry - let me elaborate *why* I posted the question.

I wanted to know if it was possible for any single mobile
antenna less than a 1/4 wave could outperform a 10m 1/4
wave whip. Like for example a loaded 5/8 wave whip.

As I understand it no whip less in size than a 1/4 wave
can be more efficiant than it's larger cousin due to resisitave
losses in the loading coil.

Right or wrong? Long answer is OK. :-)

--
73's es gd dx de Ken KGØWX
Grid EM17ip, Flying Pigs #1055,
Digital On Six #350,
List Owner, Yahoo! E-groups:
VX-2R & FT-857




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Old April 14th 05, 12:59 AM
Jim Kelley
 
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Fred W4JLE wrote:

A loading coil does not make an antenna longer. It simply cancels the
capacitive reactance of a short radiator.


The other way to cancel the capacitive reactance of course, is to make
the antenna longer.

ac6xg

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