[TowerTalk] 80 mts four square or yagi?

[W0MU Mike Fatchett]

If you can't go the full 4 sq route wouldn't an endfire with switching 
to broadside be a close 2nd?

Mike W0MU

On 3/9/2015 1:28 PM, Stan Stockton wrote:
> Jorge,
>
> If your wire Yagi is not flat ( in other words inverted V type elements) it will not work as well as it would if flat.  There would be a significant difference between the whole thing being flat at 115 feet and the center of the elements at 115 feet and the ends at 80 feet, for example.
>
> A few years ago I put up four wire elements for 80m with the center of the elements at 130 feet and with effective boom length of about 110 feet.  The ropes holding the ends were going out quite far - about 250 feet or so.  The antenna was, without question, better than my four square (60 radials each vertical) from Arkansas to Europe.  It was just more trouble than it was worth to keep it up and the modeling showed that it had an effect on my 20m antenna.  It was hanging under the boom of the top 20m Yagi.
>
> As has been discussed a 4 Square is hard to beat for simplicity, maintenance and quick direction switching.  To achieve something that would be significant you would perhaps want a 3 element Yagi that rotated at 150-200 feet.  Whether the difference would be worth the expense and maintenance is questionable.  If wire and time is not a problem, more than 60 radials and longer than 70 feet would be good for the 4 Square performance.
>
> 73...Stan, K5GO
>
> Sent from my iPad
>
>> On Mar 8, 2015, at 12:06 PM, Jorge Diez CX6VM <cx6vm.jorge at gmail.com> 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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