Based on my measurements and method I used to measure 100 ft of window line, the loss in the line from dry to wet is frankly nil. However, the wet line does show a velocity factory change, in effect an electrical change in line length, and thus when connected to an antenna, will have a small effect on the impedance at the station end of the line.

I really think and believe many comments and opinions regarding window line, are more "old ham lore" not based on true and complete facts.

73

Bob, K4TAX


On 1/14/2022 12:26 PM, elecraft-requ...@mailman.qth.net wrote:
Message: 17
Date: Fri, 14 Jan 2022 11:26:13 -0700
From:ho13d...@gmail.com
To:elecraft@mailman.qth.net
Subject: Re: [Elecraft] [OT] Loss in window line [OPINION] [LONG]
Message-ID:<ca9fbf80-ba6d-4e4b-9af8-15c2d5791...@gmail.com>
Content-Type: text/plain;       charset=us-ascii


I concur with the conclusion that water has little effect on window line. I 
base this on my own experience using window line for years. I always feed it 
into a tuner and, if water has any effect on the line, I have to adjust the 
settings of the tuner. It is only necessary to adjust the tuner under very 
heavy rain. Anything resembling a normal amount of water on the line has 
essentially no effect, even after years of dirt buildup.

Years ago, when I had a swimming pool, I spanned the pool with a length of 
underwater ladder line and made some simple measurements that indicated only a 
nominal change. And pool water is purposely chlorinated, which increases the 
conductivity, although I don't know by how much.

73 de dave
ab9ca

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Reply via email to