The Hy-Gain "clamshell" element mounting is very difficult to use on
six meters as the feedpoint connection fans out by at least 4".
I agree with Hector ... scrap the Hy-Gain boom to element mounts and
start with a clean design based on insulated elements above or below
the boom. In addition to G0KSC's designs, those by Pop, YU7EF are
well recommended, have been built by many and are solid performers.
See: http://www.yu7ef.com/ - the EF606 would work very well on the
Hy-Gain 24' boom and offers a direct 50 Ohm feed.
73,
... Joe, W4TV
On 8/8/2013 1:10 PM, Hector Garcia XE2K wrote:
Robert
Will recommend if you go for other design that have no need for a matching
device like the gamma, beta , delta, testa or the Hair pin
I got excellent results compared to commercial in production antennas making my own
6m and 10m yagis with GØKSC designs
Will say that several model of LFA can fit in your boom , OWL or a OWA, direct
feed to 50 ohms and low noise antennas
Check the page and get a new proved design and not one made with a calculator
and with uncertain gain and performance
Give a try
http://www.g0ksc.co.uk/
Just one happy "Customer" of Justin's work to the hams
J.Hector Garcia XE2K / AD6D
Mexicali B.C DM22fp / El Centro
P.O.Box 73
El Centro CA 92244-0073
http://xe2k.net
Tweeter @XE2K
________________________________
From: r miles <greenacres113@charter.net>
To: 6m <50mhz@mailman.qth.net>; antennas <antennas@mailman.qth.net>; towertalk
<towertalk@contesting.com>
Sent: Thursday, August 8, 2013 9:41 AM
Subject: [TowerTalk] hairpin matches
I recently acquired a 5 el HyGain 10m monobander on a 24' boom. The yagi uses a
hairpin match. The plan is to convert it to 6m. Either a WVO special on 19' of
boom or use the full 24'. Since it's already in place we are considering using
the hairpin. Obvoiusly shorter as the freq is nearly double 10m. My friend
W4HLR will be actually doing the construction.
We would like to hear your experiences with HyGain hairpin matches on monobanders.
Or any monobander. Is there an advantage using a hairpin rather than gamma or
other methods. DX-Eng sells hairpins & say they are better than gamma, etc.
We're hoping to end up with a heavy duty yagi as the boom & element sizes of this
yagi are bigger & heavier than most 6m yagis.
It will be for next seasons 6m Es. If there is one. Hi! Really was poor this
Summer in NW Tn.
Tnx K9IL
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