[ICOM] AT-130 marine antenna tuners

[Tom Norris]

Seems the newer ones have a jumper that changes the state of the  
keying line or some such thing.

Also the '120 and the '130 are rated for 150 watts AND for continuous  
RTTY duty.  They probably figure that "regular folks" will be harder  
on them than hams, too.

Tom
(cant post to list, qth thinks all my isp's are spam)

On Dec 21, 2005, at 11:35 AM, Jerry Flanders wrote:

> I previously used an AH-4. My 120 works the same - tunes  
> automatically, turns on/off properly. I found a mod somewhere for  
> the 120, but I found mine needed no mod to work exactly as an AH-4.  
> I also saw that mine did not look exactly the same as the circuit  
> board photos for the 120 in the mod article - maybe mine was a  
> later version. If so, then the later 130 would likely have those  
> version changes and would probably work properly like mine.
>
> Perhaps your mod info is the mod I found when I was first  
> researching mine.
>
> My 120 is "beefier" than the AH-4. I think the inductors are  
> larger, IIRC. Also wider tuning range (lower freqs with same  
> radiator).
>
> Jerry W4UK
>
> At 17:02 12/21/2005, you wrote:
>
>> Jerry,
>>
>> Does your At-120 turn on and off with the 706MKIIG's tuner button?  
>> I used an AT-120 and it would turn on with the tuner button but  
>> would not turn off. I used to tune the 706MKII up to 6 meters and  
>> the tuner would turn off. Then we got a modification form the  
>> factory and once that was done it worked like the AH-2 or 3 would.  
>> It always tuned fine just turning it off before the mod was not  
>> possible for me anyway.
>>
>> I am not sure about the AT-130 how it will work with the ham rigs.  
>> Apparently tere was some differences internally in the control  
>> section between the AH-2 and AT-120 as shown above with my issue.
>>
>> Gary K8IZ.
>>
>> -------------- Original message --------------
>> From: Jerry Flanders <jeflanders at comcast.net>
>>
>> > I have an AT-120 marine tuner that works FB with my 706mk2g. I can
>> > even tune it down to 3.5 MHz with about 14-15 ft of doglegged  
>> wire as
>> > the antenna. Also seems to tune ok on 6 meters, but I haven't
>> > actually used it there.
>> >
>> > Apparently ICOM uses the same control protocol on all AT products.
>> >
>> > Jerry W4UK
>> >
>> > At 14:49 12/21/2005, you wrote:
>> > >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
>> >
>>
>
> ----
> Your Moderator: Dick Flanagan K7VC, icom-owner at mailman.qth.net
> Icom Users Net: Sundays, 1700Z, 14.316 MHz
> Icom FAQ: http://www.qsl.net/icom/
>