[Top] [All Lists]

Re: [TowerTalk] Non-sagging antenna elements

Subject: Re: [TowerTalk] Non-sagging antenna elements
From: "Roger (K8RI)" <>
Date: Sun, 02 Jan 2011 15:23:30 -0500
List-post: <">>

On 12/31/2010 1:25 PM, Tod - ID wrote:
>> One thing to realize is that the resonant
>> point is changing because the wire is also getting longer as it sags.
>> 73, Erich
>> N6FD
> I wonder if you mean that the apparent length of the wire is increasing
> Erich. I suspect that the actual length of wire is not really changing -- at
> least not significantly -- when the wire is sagging.
If the sag is due to stretching then the resonant frequency will change 
due to the length change.
> The capacity to ground
> is probably increasing as the wire droops toward the ground. I guess that
> would be one form of capacitive loading.
The antenna is effectively lower with a different shape and that would 
change not only the capacitance, but the antenna characteristics a tad 
as well.


Roger (K8RI)
> Tod, K0TO
> _______________________________________________
> _______________________________________________
> TowerTalk mailing list


TowerTalk mailing list

<Prev in Thread] Current Thread [Next in Thread>
  • Re: [TowerTalk] Non-sagging antenna elements, Roger (K8RI) <=