UPDATE: I received a few direct replies with the VSWR data points I wanted.
Thank you.
I created a VSWR graphing tool using Excel to plot the information I received.
The tool will allow you to print VSWR charts, make an adjustment to your
antenna, update your data points, and print a new graph to compare and see what
effect your changes have made.
You can download a copy of the workbook (25-Kb) from my website, here:
http://tinyurl.com/ygp92fw
At this point, Rev 1 is pretty basic. You type the information from your SWR
meter into a table and the VSWR graph is automatically generated for you. I
might add other features if there are any requests to do so.
73 de Bob - KØRC in MN
------------------------------
Message: 6
Date: Fri, 30 Oct 2009 19:33:04 -0500
From: "Robert Chudek - K0RC" <k0rc@citlink.net>
Subject: To: <towertalk@contesting.com>
Message-ID: <37B058F04E7D41AC82A75A2F5E3F5598@GX620A>
Content-Type: text/plain; charset="iso-8859-1"
Does anyone have VSWR curves plotted for the Cushcraft A4 they could share with
me? Plots from an antenna simulator would be okay but I'm more interested to
see real life data of installed antennas. There are not curves in the manual I
downloaded from the website.
Also, would anyone care to conjecture why an A4 would show minimum VSWR on
13.990 and 20.300 MHz instead of inside the 20 and 15 meter bands as expected?
73 de Bob - K?RC in MN
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