[TowerTalk] Topband: Horizontal Loop Performance??

[Yuri Blanarovich]

Hi Ed,

First question is about the QTH, ground conditions. Close to salt water 
or sea of sand?
That would help deciding on polarization.

Inv Vee is not a bad performer and horizontal loop would have hard time 
to beat it, modeling the loop would give idea of the pattern and 
possible comparisson to Inv Vee.

Yuri, K3BU.us



On Sat, Jan 5, 2013 at 2:12 AM, Edward Sylvester wrote:

> Greetings All!
>  
> I am in Saudi Arabia and had the opportunity to throw up some wire 
> antennas.  I put up 30' of fiberglass mast on my 25' roof and 
> installed an 80m INV VEE fed with open wire line, straight to tuner.  
> Hears extremely well.  Cannot transmit until I get a license, which is 
> in the works.
>  
> I decided to take advantage of some tall coconut trees and installed a 
> triangular-shaped horizontal loop with >700' of wire fed with open 
> wire line, up 35-50', taking into account the sagging.  This goes 
> straight into a 1:1 current balun at ground level.  Coax run is about 
> 6'.  No issues.  Tunes perfectly.
>  
> I ran some A/B comparisons with the Inv Vee and determined that they 
> are very similar in performance!
>  
> I was hoping the Loop would blow away the Inv Vee but was disappointed 
> when this did not occur.  Has this been your experience?  I have tried 
> to read as much as possible, but there are varying opinions on loop 
> expectations.   
> Your opinion would be greatly appreciated.  Frustrated....
>  
> 73,
> Ed NI6S (soon to be HZ1xx and QRV on 160m)
> _______________________________________________
> Stew Perry Topband Distance Challenge coming on December 29th.