[ICOM] AT-130 marine antenna tuners

[Des Pendergast]

Hello Vladimir,

While not having experience with the AT-130 model (my experience is with
the AH-4) I would seriously implement what you have suggested.  As large
a wire antenna as possible matched with the AT-130.  Apart from the
power limitation of 100 watts or so which means that you can't use an
amplifier, they match and allow the wire to radiate well.

The At-130 is more commercial and ruggedised than the AH-4.  With
heavier duty relays and other components and also the PCB tracks are
noticeably heavier duty as well.  Also, Icom technicians over here in VK
have told me that the AH (ham) series are not designed for the heavier
duty usage.  Such things as continuos duty data etc which the marine and
other commercial users demand of them.

If you already have two of them, one would certainly do a good job with
a large piece of wire and be simple to implement.  Also, The frequency
range of the tuners is not strictly as quoted in the instructions or
brochure either.  An AT-130 would certainly tune from 160 - 6m with a
suitable radiator connected to it.  If the transceiver can initiate the
tune sequence, the tuner will try and match it.

Hope this bit of information is helpful to you.

Best regards,

Des - VK3DMP.




----- Original Message ----- 
From: "Vladimir V. Sidorov" <eu1sa at belsonet.net>
To: "ICOM Reflector" <icom at mailman.qth.net>
Sent: Thursday, December 22, 2005 1:49 AM
Subject: [ICOM] AT-130 marine antenna tuners


> Hi all,
>
>  Eventually I managed to aquire two (two!) Icom AT-130 marine tuners
some
>  time ago. Both are brand new, in factory sealed bags. I have never
had any
>  necessity to touch them and they were just collecting dust. However
having
>  moved to a new house I am faced a serious problem with antennas'
location.
>  The best I can imagine so far is a random wire from the attic top
across my
>  backyard. Some counterposes could be placed inside the attic and
these
> wires will look like a sort of Inv L. It looks like I am forced to
seriously
> consider matching the wire monster somehow. Maybe it's a good chance
for the
> tuners.
>
>  Does anybody have any experience/knowledge in usage of the marine
tuners
>  with amateur equipment? Any hint or so?
>
>  Or maybe somebody needs such a tuner? I am certainly ready for a
trade.
>
>  73 and Merry Christmas,
>
>  Vladimir VE3IAE
>
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