[TowerTalk] [Bulk] 80 mts four square or yagi?

[Grant Saviers]

Any comparison has to be gain vs elevation angle.  In my modeling 80m 
yagis & dipoles don't have sufficient low angle gain until they are up 
about 150'.

A 2L 80m yagi at 150' models its gain peak as about 12dbi at 25deg and 
3dbi at 5deg elevation.

A 4sq over salt water yields about 9dbi from horizon to 25deg 
elevation.  Obviously, best case, so modeling is needed for every design 
of radials and ground properties.

Both are a significant investment so should be carefully modeled.

Grant KZ1W


On 3/8/2015 10:06 AM, Jorge Diez CX6VM wrote:
> Hello
>
> Wish someone have some analysis or field test to compare a 4SQ with sixty 1/4 WL radials each vertical and a 3 element wire yagi with boom at 115ft
>
> Which one have more GAIN?
>
> Thanks
> Jorge
> CX6VM/CW5W
>
> Enviado desde mi iPhone
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