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-   -   Cardioid antenna at 440 MHz (https://www.radiobanter.com/antenna/94-re-cardioid-antenna-440-mhz.html)

Mike M. July 20th 03 07:29 PM

Cardioid antenna at 440 MHz
 
On Sat, 19 Jul 2003 01:56:04 GMT, "George Weischadle"
wrote:

Hi all,

Can anyone tell me where to find a commercial antenna (or design for
homebrew) that is compact and generates a cardioid pattern at 440 MHz?
Please email me at .

Thanks,
George


A Moxon rectangle sound like what you need. The first link is a
description of a 2m Moxon, the second is a calculator that will allow
you to easily determine the dimensions for 440. I built a 2m version
out of copper pipe and got a good match on the first try.

73
Mike

http://www.cebik.com/mvhf.html

http://www.qsl.net/ac6la/moxgen.html


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