[TowerTalk] C31XR versus SteppIR

[Mike Fatchett]

Optimum for what?

Gain, F/B, pattern?

Who defines what is optimal?

What he said is that you can overcome many of the issues with fixed element
spacing if you have the ability to vary the element lengths.  This is not
possible in any other design.  There are compromises with any antenna.

Mike W0MU

 

-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of john at kk9a.com
Sent: Sunday, May 13, 2007 11:39 AM
To: TOWERTALK at contesting.com
Cc: dezrat at copper.net
Subject: Re: [TowerTalk] C31XR versus SteppIR


Joe responded (actually shouted) this statement after I stated the following
last Friday night when comparing the subject antennas:  "The SteppIR, has no
element interaction problems because the element lengths are adjustable, 
however the spacing is not adjustable and not optimum",   Since no limits 
were defined, I understood his comment to mean that within the frequency
range of the SteppIR, the element spacing is irreverent.  If this is
incorrect, then Joe, W4TV, is actually agreeing with me, that the element
spacing of the SteppIR is not optimum on all bands.

John KK9A


To: towertalk at contesting.com
Subject: Re: [TowerTalk] C31XR versus SteppIR
From: Bill Turner
Date: Sun, 13 May 2007 08:31:38 -0700


ORIGINAL MESSAGE:

On Sun, 13 May 2007 11:18:05 -0400, <john at kk9a.com> wrote:


>ELEMENT SPACING  DOES NOT ENTER INTO EITHER GAIN OR F/B IF THE ELEMENTS 
>ARE PROPERLY TUNED FOR THEIR POSITION IN THE ARRAY??

------------ REPLY FOLLOWS ------------

The statement above was originally posted by W4TV and prefaced by "within
limits".  By removing "within limits" you have made it into an absolute
statement instead of a relative one, something Joe did not intend.

Bill W6WRT 

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