Hi Karin. I am no expert but I will try to help out any way I can. I did
some modeling and then constructed a pair for HF and they really worked
well. I documented the setup in one of the ARRL Antenna Compendiums,
don't remember which issue but I can find the PDF if you like. 73
Gedas, W8BYA
Gallery at http://w8bya.com
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
On 8/25/2019 4:52 PM, Karin Johnson wrote:
Hello Group:
I would like to have a discussion off list about designing a 20 Meter
Colinear dipole array.
Right now I am trying some simulations in EZNEC and am referencing the Low
Band DXing
Book by ON4UN with regard to the Phasing of the two or multiple antennas.
I'm having a bit of difficulty in replicating some the work ON4UN and the
volume authors
Did on the understanding of the Array Chapter number 11.
Anyone who has tried building collinear antennas at HF?? I know that Tom
W8JI has
Done this on a massive scale and that is not what I am trying to accomplish
here.
Just two simple collinear dipoles fed either in phase or out of phase.
The EZNEC simulations seem to blow up when the phasing and matching networks
are
Applied to the two antennas.
Regards,
Karin Anne Johnson K3UU
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