[TowerTalk] Need info & manual on 20 meter beam

Arne Gjerning gjerning at flash.net
Tue Aug 19 00:01:04 EDT 2003


The LJ-205CA is NOT anywhere near the same antenna.  What Chuck, N6PSN, has
is the ORIGINAL LONG JOHN series 20M yagi from late 50s/early 60s.  He
described the yagi correctly as having a 46 ft boom; whereas the LJ-205CA
has ONLY a 34ft boom.  His antenna is built like a "MACK TRUCK" compared to
the LJ-205CA.

These old Long John are hard to find.  They were very heavy antennas and
construction wise somewhat like the TELREX 20M yagi construction.  Doubt
that his Long John will be on the HyGain web site. (years ago in Oregon a
good friend had one of these yagis.  Very impressive at 70ft in 1965.)

Chuck, in my opinion, has a great, strong yagi that will require a sturdy
support.  And a strong rotator.  Do NOT trust the Tail Twister with this
one.  BTW, I use the old HyGain ROTOBRAKE Model 400 here and its from the
same era.  Turns my 5el 52ft boom 20M yagi nicely.

Chuck, hope you get a manual for the antenna.  Post a picture when its up.

73 de Arne N7KA

----- Original Message -----
From: "Bob Nielsen" <nielsen at oz.net>
To: <towertalk at contesting.com>
Sent: Monday, August 18, 2003 9:48 PM
Subject: Re: [TowerTalk] Need info & manual on 20 meter beam


> On Mon, Aug 18, 2003 at 08:02:10AM -0700, Chuck Frame wrote:
> > I have a 5 element 20 meter beam on a 46 foot boom.
> > The boom is 4" od tapering to 2.5' od at the ends.
> > The elements are 1.5" diameter. This beam was made by Hy-gain. The 1967
catalog I have calls this (DX Long John 205B) Rated for 125 mile wind and
built to "Commerical/Industrial Specifications"
> > Wind load: 18.1 sq  Weight185 pounds.
> > I need the manual so I can put it togther. Anyone had one of these beams
I would like your input
> > Chuck N6PSN
>
> The manual for the similar 205CA is on the Hy-Gain website:
>
> http://www.hy-gain.com/man/pdf/LJ-205CA.pdf
>
> 73,
> Bob, N7XY
>
>
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>
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Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any
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>
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