[TowerTalk] element tapering calculation

[Robert Chudek - K0RC]

Last year I found that W6QHS (now W6NL) Lotus spreadsheet and converted 
it to Excel 2003 XLS format. His spreadsheet is used to determine the 
survivability of a tapered element. It is not an RF design tool. Anyone 
can download a copy of ELEMENTS.XLS from here:

*http://tinyurl.com/d7m3pxn*

I added a number of worksheets to create this new workbook. The first 
sheet contains the formulas / calculations. The second is a mechanical 
layout of the 40m Telrex I was experimenting with.  I added two more 
pairs of worksheets to I could quickly jump among different design 
parameters. The final worksheet contains some information I found 
regarding Frank's antennas at W3LPL and I saved it for reference.

Also, for those who don't have a "charting VSWR meter", there is also a 
workbook that lets you input VSWR values and it will create a chart that 
you can print out. That file is "VSWR charting tool - Rev 3".

73 de Bob - KØRC in MN

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On 11/27/2012 8:00 AM, PY1NB - Felipe Ceglia wrote:
> Hi John,
>
> Thanks for replying. Can you forward me this algorithm?
>
> I will google for this spreadsheet.
>
> 73,
>
> Felipe Ceglia - PY1NB
> -------------------------------------------------------------------------------------
> PR1T team member /// Rio DX Group member /// Araucaria DX Group member
> http://dxwatch.com /// http://reversebeacon.net /// http://riodxgroup.com
>
>
>
> On Tue, Nov 27, 2012 at 11:51 AM, <john at kk9a.com> wrote:
>
>> I have used the W6QHS algorithm with excellent results.  To make
>> calculations easier, there is an old spread spreadsheet someplace on the
>> internet which can be converted to Excel.
>>
>> John KK9A
>>
>>
>> To:     <towertalk at contesting.com>
>> Subject: [TowerTalk] element tapering calculation
>> From:    PY1NB - Felipe Ceglia <felipeceglia2 at gmail.com>
>> Date:    Mon, 26 Nov 2012 20:55:30 -0200
>>
>>
>> I'd like some advice on software, scripts or ways to convert single
>> diameter tubinng into tapered element, and back.
>>
>> I've been advised to try ON4UN's software, but I could not run it on
>> windows7.
>>
>> Thanks,
>>
>> Felipe Ceglia - PY1NB
>>
>>
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>>
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