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 Radiation patterns for 80m,40m sloper etc. 
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Post Radiation patterns for 80m,40m sloper etc.
I've taken an interest in 80m and 40m antennas that are neither the usual horizontal or vertical but a bit sloped. I can find the usual patterns but is there a book or internet link that shows worked examples of, for example a 40m dipole, a quarter wave high and one tip yet near ground at other tip. Cliff.


Mon Jun 02, 2014 3:07 pm
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 Radiation patterns for 80m,40m sloper etc. 
Silent Key

Joined: Fri May 22, 2009 1:23 pm
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Post Re: Radiation patterns for 80m,40m sloper etc.
The ARRL Antenna Book has a chapter on "slopers" which includes some radiation patterns. But this is something it would be very easy to model using, for example, the free version of EZNEC; that way you can get the patterns for whatever configuration you choose.

Steve G3TXQ


Mon Jun 02, 2014 7:44 pm
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 Radiation patterns for 80m,40m sloper etc. 
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Joined: Fri Aug 17, 2012 11:37 am
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Location: Enniskillen Fermanagh U.K.
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Post Re: Radiation patterns for 80m,40m sloper etc.
Thank you for the reply Steve, I'm shy of EZNEC and my ARRL Ae book is an older edition but " sloper " produced some information on the net and then I started to discover delta loops. Some of these articles have EZNEC patterns, so I will follow that investigation for a bit. I've not a lot of space to experiment with, so options are limited. Thanks again. Cliff.


Tue Jun 03, 2014 9:40 am
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