Here "Down Below" (VK-ZL), the VK5DJ Yagi Calculator has proved to
produce reliable Yagi designs that have been proven to work time out
of number.
"Yagi Calculator is a Windows program that also runs well on Linux,
Ubuntu 8.10 under Wine, to produce dimensions for a DL6WU style long
Yagi antenna. Long yagis are commonly used from the 144MHz amateur
band to the 2.4GHz band. The DL6WU yagi is highly regarded as being
easy to build with repeatable results, broad bandwidth and a useful
pattern."
https://www.vk5dj.com/yagi.html
73, Roger Harrison VK2ZRH
----- Original Message -----
From: jim@audiosystemsgroup.com
To:
Cc:
Sent:Sat, 23 Jan 2021 14:25:10 -0800
Subject:Re: [RFI] New RFI
On 1/22/2021 2:52 PM, David Eckhardt wrote:
> In working with our STEM students last year (before COVID), I ran
into the
> same problem in using online Yagi designers. User beware on ALL
these
> online antenna designers!!! I don't know where they came from, but
they
> are polluting the www resources with bad designs. Plug them into
4NEC2,
> EZNEC, or MMANA before committing to hardware.
YW, on the CDROM that comes with the ARRL Antenna Book, is
trustworthy.
73, Jim K9YC
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