[AMRadio] High-power tuners

[Bob Peters]

Ok Guys...Ya all want a great High Power Tuner then there is only really
in my book one good one.
It is the JW Miller AT-2500 auto tuner. Good for 2500 watts key down. It
is fully automatic on tuning.
There are a bunch of us in the Dallas Area using them...Mason has one on
his Big Iron...They are costly on the used market $500 to $750  

Bob W1PE

-----Original Message-----
From: amradio-bounces at mailman.qth.net
[mailto:amradio-bounces at mailman.qth.net] On Behalf Of John Lawson
Sent: Thursday, December 07, 2006 9:41 PM
To: Discussion of AM Radio in the Amateur Service
Subject: Re: [AMRadio] High-power tuners




On Thu, 7 Dec 2006, Rick Brashear wrote:

> Would a KW Johnson Matchbox stand up to the load?


   I'm not a fan at all of the Matchbox series...  Several folks I know 
have them, and they have very good points, and, like most Johnson gear, 
some built-in design quirks and compromises.

   I am thinking to either find a military or commercial unit - or - 
hombrew a feedpoint tuner with an unblanced input topology - then I can 
just run real good coax, or maybe 1/2" or 5/8" hardline, from the TX to 
the Tuner...  the which tuner is basically 'preset' for the small chunk
of 
80M I'm interetsed in.


   I have one of those Really Beefy 'antenna changeover' remote
switches, 
made to handle 10KW - I'm thinking of using it to switch the antenna's 
feedpoint from the 80M tuner to the ladder-line and back - so I can use 
the Smaller Rigs and the ATR-15 - as is the system now.

  All this until I move QTH - (hopefully!!) sometime early next year.
Just 
gotta wait until the Real Estate market is at the bottom of it's
implosion 
around here, and then go pick out the ("distressed") Ranch Property I 
want.

   At that point I intend to add 'rhombic' to my Ham Lexicon.


Cheers and Best of the Season

John
KB6SCO
DM09fg

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