Quad are mechanically prone to give troubles, and ther installation is
more complex and time consuming since they are 3D antennas.
Expecially with 20 meters, or worse with 40m elements, the quad boom
can't be ever at man's level and one has to suffer a bit when
installing a completed antenna on the mast.
On the other hand one can think to assemble the quad after the boom is
attached to mast, but again this is a time consuming procedure
(buliding a part of the antenna when raising it) and if something has
to be changed (tunings, repairs) all the above operation has to be
reversed.
To me, a yagi looks a more steady and practical solution for a city lot
although quads can be made nowadays more light, strong and flexible
using composite materials.
73,
Mauri I4JMY
that reduce the frequency of failures.
> ---------- Initial message -----------
>
> From : owner-towertalk@contesting.com
> To : towertalk@contesting.com, Bgsalesmel@cs.com
> Cc :
> Date : Tue, 6 Feb 2001 08:42:30 EST
> Subject : [TowerTalk] Quad vs. yagi
>
> Being a "new guy" on this list makes me wonder what am I getting
into - Some
> of you guys have got to be PHD's in electronics or something from
Star Wars.
>
> This basic thread/question is of great interest to me - I am going to
be
> buying something to put up on my 50ft of 25G that's laying in the
yard snow
> covered now.
>
> Been thinking and looking at all the 10-15-20 and -40 variations out
there.
> My budget is about $700 +/- come April or May. I have a rebuilt Ham V
(?)
> rotor with a CD-44 control box (8 wire) and a short 2" mast (5 ft). I
will
> also be rigging a side arm with pulley for some wire hanging at about
10ft
> below the main ant. I live on a 1/3rd acre city lot here in Coeur
d'Alene, ID
> - this is about all I can put up.
>
> I have looked at the Quads and the Yagi's. We do get ice storms up
here, last
> big one in '96. The Force 12 models look like they could take it. I'm
not a
> real lover of traps, but could live with them if the ant was a high
> value/benefit item. I have an FT-900AT and a 300 watt tuner. Main ant
will
> get coax and the hanging wires will get ladder line. I do not plan on
any
> high power amp for many years, if then.
>
> Will a quad live through an ice storm? Will the yagi's do so any
better? I
> can handle about 9 sq. ft with our winds up here, they sometimes gust
as high
> as 70 mph. Very rare to get ice with any wind.
>
> Spec's are nice to read on a cold winters' night - what are some of
your real
> world observations of these two ant types? My ground is "average" and
I'm
> going to try and improve that with things buried.
>
> Also, do you guys never "cut 'n' paste" when answering posts? The
length gets
> my finger numb scrolling down all the time.
>
> Regards,
> Mel KD7DCR
> "new guy"
--
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