by the way - the ones that start running first are the ones that get those
primo frequencies!
OJ
----- Original Message -----
From: "Dick Pechie - KB1H" <rpechie@snet.net>
To: "Nat Heatwole" <nat@ajheatwole.com>
Cc: <towertalk@contesting.com>
Sent: Thursday, January 31, 2002 7:39 PM
Subject: Re: [TowerTalk] 10m-20m Antennas Above 150ft
>
> Not only do you have to decide is anything higher worth the QSO increase,
> but what is the higher antenna getting you as far as usable take-off angle
> vs. terrain gain. I believe the very high antennas of KC1XX and W3LPL can
> open a band early but after the initial opening these two guys are in the
> pack with the rest of us. Operating skill can overtake allot of
mediocrity
> very easily.
>
> I do think that a terrain gain analysis can prevent you from making a
> decision on what I would call midsize tower heights such as 90-120 feet. I
> found that 120 feet did not take advantage of the terrain gain to Europe
as
> well as 90 feet did on 20 meters. Thus, we only put up 90 feet on the 20
> meter tower with the bottom 204BA at 35 feet.
>
> I guess at a height of many wavelengths such as 300 feet all you are
looking
> at is a band opening advantage.
>
> Not a scientific observation but a 30+ year on the job training.
>
> 73 Dick - KB1H
>
>
> Nat Heatwole wrote:
>
> > I've noticed that both KC1XX and W3LPL have yagis for 10m-20m going all
> > the way to 200ft high. Are yagis in the 150-200ft range for those bands
> > really all that useful, or are they more of a "few QSOs per contest"
> > level of usage? I would assume that once you get above say 150ft there
> > wouldn't be a whole lot of cause to put yagis even higher, correct? Is
> > there really enough long haul DX at those heights or is it really just
> > for a handful of QSOs?
> >
> > 73, Nat, WZ3AR
> > <nat@ajheatwole.com>
> >
> > ________________________________________________________________________
> > Where do you get ICE bandpass filters & beverage matching boxes? The
> > same place that pays for the hosting of this list: The eHam Store.
> > Order online at http://store.eham.net.
> > -----------------------------------------------------------------------
> >
> > -----
> > FAQ on WWW: http://www.contesting.com/FAQ/towertalk
> > Submissions: towertalk@contesting.com
> > Administrative requests: towertalk-REQUEST@contesting.com
> > Problems: owner-towertalk@contesting.com
>
>
> ________________________________________________________________________
> Where do you get ICE bandpass filters & beverage matching boxes? The
> same place that pays for the hosting of this list: The eHam Store.
> Order online at http://store.eham.net.
> -----------------------------------------------------------------------
>
> -----
> FAQ on WWW: http://www.contesting.com/FAQ/towertalk
> Submissions: towertalk@contesting.com
> Administrative requests: towertalk-REQUEST@contesting.com
> Problems: owner-towertalk@contesting.com
>
>
________________________________________________________________________
Where do you get ICE bandpass filters & beverage matching boxes? The
same place that pays for the hosting of this list: The eHam Store.
Order online at http://store.eham.net.
-----------------------------------------------------------------------
-----
FAQ on WWW: http://www.contesting.com/FAQ/towertalk
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
|