[Elecraft] Field antenna tip

Barry LaZar k3ndm at comcast.net
Mon Jul 25 17:24:16 EDT 2016


Wayne,
     What a novel solution! That's one that would never have occurred to 
me! Glad it worked!

73,
Barry
K3NDM

------ Original Message ------
From: "Wayne Burdick" <n6kr at elecraft.com>
To: "Elecraft Reflector" <elecraft at mailman.qth.net>
Cc: "KX3 at yahoogroups.com" <KX3 at yahoogroups.com>
Sent: 7/25/2016 3:45:53 PM
Subject: [Elecraft] Field antenna tip

>Hi all,
>
>This weekend I was using the KX2 with a random length of wire tossed in 
>a tree and another random length laid on the ground. Normally the ATU 
>(KXAT2) can handle just about anything, but this particular combination 
>of lengths wasn't working well on 40 m; SWR was still around 3:1 after 
>matching. It probably looked like an end-fed half wave to the tuner.
>
>The wires were connected to a BNC-to-binding post adapter, suggesting a 
>simple workaround. Rather than adjust the length of the wire by cutting 
>or splicing, I simply reeled in a few feet of it and wrapped it around 
>one of the binding posts, forming an inductor of perhaps several uH.
>
>The ATU was then able to match the antenna on 40 m, as well as the 
>other bands (up through 10 m).
>
>73,
>Wayne
>N6KR
>
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