Couldn't have possibly said it any better, Frank et al !!
For you, John: http://www.w0btu.com/160_meters.html :-)
73, Mike
www.w0btu.com
On Tue, Aug 20, 2019 at 12:33 PM <donovanf@starpower.net> wrote:
> Hi John,
>
> Horizontal polarization isn't very effective on topband except for local
> QSOs. It would be far better if you could install an inverted-L vertical
>
> 73
> Frank
> W3LPL
>
> ----- Original Message -----
>
> From: "John Harper" <johnae5x@gmail.com>
> To: topband@contesting.com
> Sent: Thursday, August 15, 2019 11:57:49 PM
> Subject: Topband: Effect of trees on vertical elements?
>
> I'm thinking of installing an end-fed half-wave dipole as an "inverted U"
> for 160m. My tree geometry is such that the antenna would be fed at the
> base of a tree, then go up it to 120 feet. Then about 90 feet to another
> tree and down it to complete the length of the antenna.
>
> Would the close proximity of the vertical portions to the two trees
> adversely affect the antenna's performance?
>
> Last year I used my 80m dipole-110-foot vertical feedline as a top-loaded
> vertical on 160 - it worked well as a transmitting antenna but was a poor
> receiver due to noise so looking for another option.
>
> Tnx/73,
>
> John AE5X
> https://ae5x.blogspot.com
>
>
_________________
Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
|