[TowerTalk] Ground mounting vs roof mounting verticals

[Michael Ryan]

I don't know where you live but here in Florida where it's flat, especially
here off the Gulf of Mexico my HF2V catches PLENTY of wind. Tapered or not,
it's guyed in three directions with 100lb test monofilament line that I
change out every year.  It will flop around in the winds here...  - M

-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of AD5VJ Bob
Sent: Thursday, October 22, 2009 12:26 AM
To: towertalk at contesting.com
Subject: Re: [TowerTalk] Ground mounting vs roof mounting verticals

Now you have my attention, I have a tuner. One built into the rig and
another external for QRO.

I am thinking more and more 'try mikey you might like it' may be the way to
go on this one. It is really no big deal to mount it --
take maybe a couple hours most.

No just to pray for no rain or wind.

I was going to do the TitanDX Vertical but it is so high profile that it has
to be guide-off, the Butternut doesn't because it is
tapered in such a way that it catches very little wind.

Bob AD5VJ 

> -----Original Message-----
> From: towertalk-bounces at contesting.com 
> [mailto:towertalk-bounces at contesting.com] On Behalf Of jimlux
> Sent: Wednesday, October 21, 2009 11:16 PM
> To: Gary Schafer
> Cc: towertalk at contesting.com; 'AD5VJ Bob'
> Subject: Re: [TowerTalk] Ground mounting vs roof mounting verticals
> 
> Gary Schafer wrote:
> > A vertical above your beam will not work. An elevated vertical must 
> > have resonant radials.
> > 
> > 73
> > Gary  K4FMX
> >
> or some other matching method, e.g. a tuner at the base.  
> Resonant radials just provide a reasonably nice resistive 
> impedance at the feedpoint.  There's not much difference in 
> "efficiency" of the radiator (defined as power radiated vs 
> power applied at feedpoint) as the length varies 10% or so 
> above or below resonance.
> _______________________________________________
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