[Elecraft] field ops

Mon Feb 11 17:19:05 2002

My RSGB book "The Antenna File" from 2001 has an article by G3CCB on
"Taming the End-Fed Antenna". He has made a chart of lengths that are
favorable based on the criterion that he wanted to avoid lengths close
to half wavelength (actually between 3/8 and 5/8) in order to avoid a
high impedance, and simplify tuning. The result is three recommended
lengths:

10.5 m: good for 80, 40, 30, 17, 15, and 12 m (not 160, 20, 10 m)
15.5 m: good for 80, 40, 20, with some tolerance at 17 and 15, and 12 m
(not 160, 30, 10 m)
26.5 m: good for 160 - 12 m (not 10 m) 

I have not tried these lengths myself, but would be interested to know
if there is any experience around that agrees or disagrees with these
figures.

Sverre Holm, LA3ZA
Asker, Norway (59.8N, 10.4E)
---------------------------------
www.qsl.net/la3za

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of WA5PB
Sent: 11. februar 2002 22:13
To: [email protected]
Subject: [Elecraft] field ops

Hey gang,

When tossing a random end over the tent and into the trees, what is
pretty much the minimum useful length.  How long for a counterpoise.  I
am using the ATU and am planning on working as many bands as possible
10-80.

Thanks,
WA5PB,
Bill Allen

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