[TowerTalk] One of our own...

David Gilbert xdavid at cis-broadband.com
Wed May 25 15:23:51 EDT 2016



He didn't say that it put out a stronger signal.  He said it tuned more 
broadly and was quieter.  The fact that it got quieter in spite of the 
the shift to vertical polarization suggests to me it simply was more lossy.

Dave   AB7E


On 5/25/2016 10:27 AM, Joe Subich, W4TV wrote:
>
>> It was just un-satisfactory so i pulled it down and replaced it with
>> the 160 antenna I still use today. A full wave loop fed at a lower
>> corner, top at the same 110 ft point. I did have to tilt it 15 deg
>> from the vertical to get it in the property lines but it works like a
>> bandit.
>
> You replaced a horizontally polarized antenna < 1/4 wave above ground
> (a "cloud warmer") with a vertically polarized "ground independent"
> antenna.  The change fro horizontal to vertical probably accounted for
> 90% of the performance increase you observed.
>
> 73,
>
>    ... Joe, W4TV
>
> On 5/25/2016 12:01 PM, Courtney Judd wrote:
>>
>> hey Steve, yes, I did enjoy the article about verticals/beach, very
>> educational! BUT, in the same issue of QST another article "If you can
>> hang a full-size vertical loop, then hang a dipole" really made me roll
>> my eyes. While I have never done any modeling, 50 plus years of playing
>> with various antennas leaves me with the opposite conclusion.  A loop is
>> ALWAYS better than a dipole in my experience. I wanted to spend some
>> time on 160 some years back so I strung up a dipole at 110 ft with the
>> resonant point at 1840.00.... worked great.... all kinds of dx.... BUT
>> the 2:1 swr points were only 7.5 kz up and down... even with a tuner the
>> antenna preformed poorly beyond that.  It was just un-satisfactory so i
>> pulled it down and replaced it with the 160 antenna I still use today. A
>> full wave loop fed at a lower corner, top at the same 110 ft point. I
>> did have to tilt it 15 deg from the vertical to get it in the property
>> lines but it works like a bandit. It is quiet and broad banded: 2:1 is
>> 1800 to 1890 and works well over the whole frequency! I would NEVER
>> replace it with a dipole. Well, thats my 2 cents and I am sticking to
>> it! lol, 73's Cort K4WI
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