Modeling is also very educational. You may learn that a proposed antenna is
inferior to a simple dipole. I agree that EZNEC is easy to use and
reasonably accurate.
John KK9A
[Elecraft] 80 Meter loop question
Mel Farrer farrerfolks at yahoo.com
Sat Apr 2 15:20:09 EDT 2016
I agree, I use ver 5 also. Easier to move stuff around. Once you try
modelling you will find it consumes an incredible amount of your time, but
FUN.
Mel, K6KBE
From: Jim Brown <jim at audiosystemsgroup.com>
To: elecraft at mailman.qth.net
Sent: Saturday, April 2, 2016 10:44 AM
Subject: Re: [Elecraft] 80 Meter loop question
On Sat,4/2/2016 6:45 AM, Clay Autery wrote:
> Does anyone have any information or a link to information data on an 80
meter loop's complex impedance and VSWR values across the HF bands?
It's pretty easy to model with NEC, which yields this data in the form a
plot of VSWR vs frequency with data points as closely spaced as you
choose. Move the cursor to each data point and you'll see complex Z.
I've learned a lot from using NEC, not only to design antennas but also
to learn from the results of the model, changing variables, etc.
4NEC2 is free and quite powerful. I use EZNEC 5.0 because I find the UI
easier to relate to, but it costs money. :)
73, Jim K9YC
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