Another cautionary note: I don't have the winds that Jeff does but down here
in Arizona we have the heat & ultra violet rays that destroy everything. I
can get about 4 or 5 years use out of window line before it becomes so
brittle it literally cracks and destroys itself.
I am using a K7TJR 4-square now on 160 and am planning an 8-circle.
73 Hardy N7RT
----- Original Message -----
From: "Jeff Woods" <jmwooods@yahoo.com>
To: <wa3mej@comcast.net>; <topband@contesting.com>
Sent: Wednesday, November 09, 2011 7:28 AM
Subject: Re: Topband: 160M Beverage antenna help requested
One cautionary note on using window line for beverages:
I tried window line last year, unsuccessfully, for a 2-wire bi-directional
beverage. While the electrical performance was satisfactory, the increased
wind load area of the ladder line made it impossible to keep operational.
Initially, it broke free from the termination and feed points. After several
rounds of improvements on the connections, eventually the line itself broke.
This was the good stuff, too - heavier gauge stranded wire.
I'm out in the open plains of Iowa where the winds are strong and steady and
the ice/snow load adds to the problem. My normal beverages using 17 ga.
aluminum electric fence wire occasionally break, but it's infrequent enough
to be tolerable. The window line beverage needed to be repaired nearly every
week until it was decommissioned for good. In a more benign environment this
type of construction can work.
73,
Jeff - W0ODS
>________________________________
>From: "wa3mej@comcast.net" <wa3mej@comcast.net>
>To: topband@contesting.com
>Sent: Tuesday, November 8, 2011 2:56 PM
>Subject: Topband: 160M Beverage antenna help requested
>
>
>
>Good afternoon to ALL!
>
>
>
>I am getting ready to put up a beverage for top band. I have decided that I
>want to put up a two wire system
>
>using window line because of the ease of assembly. I am not sure if I will
>use it in the null steering mode
>
>or just switch from front to back. I will decide that after I get it up.
>
>
>
_______________________________________________
UR RST IS ... ... ..9 QSB QSB - hw? BK
_______________________________________________
UR RST IS ... ... ..9 QSB QSB - hw? BK
|