In a message dated 10/11/01 10:58:01 AM Pacific Daylight Time,
info@cal-av.com writes:
<< Ken and all -
As a matter of interest, the W.W.II wideband, high power balun built into
the hairpin is used on the (current production) 2D-series of antennas mfg.
by CAL-AV. See www.cal-av.com/antennas.html
73,
Ken
----- Original Message -----
From: <K7GCO@aol.com>
To: <towertalk@contesting.com>; <longterm@chatusa.com>
Sent: Wednesday, October 10, 2001 9:11 PM
Subject: Re: [TowerTalk] [Tower Talk] 10 to 25 ohm feed.
>>
Thanks for the input. Over the years I've been more and more acceptive of
the hairpin match. For years I was againt any reduction of the high current
area being canceled from radiating in a hair pin. But in Eznec I've run many
patterns where the DE was less than a 1/2 wave and more than 1/2 wave and
there was virtually no change in the pattern. There can be a bandwidth
difference but with a short 50 ohm hairpin it's very close. No balun is
needed if the coax is run up one side of the hair pin, any R value can be
obtained and there is nothing to saturate. It's a pretty good match although
not my favorite. k7gco
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