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Re: [TowerTalk] SteppIR gain

To: "Kelly Johnson" <n6kj.kelly@gmail.com>,<towertalk@contesting.com>
Subject: Re: [TowerTalk] SteppIR gain
From: "Richard M. Gillingham" <rmoodyg@bellsouth.net>
Date: Wed, 16 Mar 2005 13:42:07 -0500
List-post: <mailto:towertalk@contesting.com>
Amen!
----- Original Message ----- 
From: "Kelly Johnson" <n6kj.kelly@gmail.com>
To: <towertalk@contesting.com>
Sent: Wednesday, March 16, 2005 1:32 PM
Subject: Re: [TowerTalk] SteppIR gain


> It is also far less "objectionable" for those of us living in densely
> populated suburbanneighborhoods with cranky neighbors or "aesthetics
> conscious" spouses in comparison to something like a C31XR (or even a
> C3).  For those of us that are "real estate challenged" and living on
> small suburban lots, the SteppIR is a great option IMO.  I only wish
> my 3L SteppIR had a 40m element (even just a single element) so I
> could ditch my inverted vee!!!!
>
>
> On Wed, 16 Mar 2005 13:04:53 -0500, Jim Jarvis <jimjarvis@comcast.net> 
> wrote:
>>
>>
>> Steve, N2IC wrote, in comment to Dave, N6LL's comments:
>>
>> <snip>
>> > Once you do the conversions, the claimed
>> > gain is as follows:
>>
>> > Band    4el Steppir    C31XR
>> > 20        9.5dBi        8.1
>> > 17        10.0            -
>> > 15        10.2          8.4
>> > 12        10.4            -
>> > 10        10.6          9.5
>>
>> Those Steppir gain figures are very questionable.  They are significantly
>> higher
>> than the gain figures for optimized yagi designs in the 20th edition of 
>> the
>> ARRL
>> Antenna Book.  While a Steppir may be a fine antenna, it's still just 4
>> elements
>> on each band, and won't be any better than an optimized 4 element beam on
>> the
>> same boom length.
>> <snip>
>>
>> Steve is right on point...there is no magic.  I can't speak to the 4 el
>> steppIR,
>> but the Mertel's published measured field data for the 3el.  I would 
>> expect
>> they
>> would test the 4 el in the same fashion, but can't attest to that. 
>> Simply
>> asking
>> them might clear things up.
>>
>> IMHO the steppIR 3 or 4 el is not materially better or worse than a 3 or 
>> 4
>> el monobander
>> on the same boom length.  What it IS, is flexible.
>>
>> n2ea
>> jimjarvis@ieee.org
>>
>> ps:  steve...tnx for the geo888 fix!
>>
>> _______________________________________________
>>
>> See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless 
>> Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with 
>> any questions and ask for Sherman, W2FLA.
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk@contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>>
> _______________________________________________
>
> See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless 
> Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with 
> any questions and ask for Sherman, W2FLA.
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk 

_______________________________________________

See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless Weather 
Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions 
and ask for Sherman, W2FLA.

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