[Elecraft] 80 Meter Verticals

Jim Brown jim at audiosystemsgroup.com
Mon Feb 27 22:06:48 EST 2017


On Mon,2/27/2017 3:43 PM, Don Wilhelm wrote:
> The inverted L will have some horizontally polarized radiation. 


Yes, but not much, because radiation is the result of current, and 
current is maximum at the bottom and minimum at the far end of the wire. 
And Fred is right on about verticals generally being noisier on RX. But 
not always.

I have a Tee vertical for 160M that works well. 100 ft tall.

Ed, the thing to remember about verticals is that they need an effective 
counterpoise. That can be anything from radials to a screen to a K2AV 
folded counterpoise. AND that verticals are VERY dependent on the 
quality of the soil around you.

There are lots of ideals about this stuff on my website. Study the 
material about getting on 160M, and divide all the dimensions by 2 for 
80M. Then look at my tutorials on verticals vs horizontal antennas. 
k9yc.com/publish.htm  They are written to answer exactly the questions 
you are asking.

73, Jim K9YC


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