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Date: | Fri, 17 Sep 2010 10:25:02 -0400 |
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Steve,
How do you think your MFJ auto-tuner stacks up against LDG's AT-1000? I'm
sure the MFJ is cheaper, but based on things I've heard about other MFJ
tuners, I wonder how reliable the internal components are.
Steve
----- Original Message -----
From: "Steve Forst" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, September 17, 2010 10:05
Subject: Re: auto antenna tuner
> Butch,
>
> I have a MFJ-998 in the shack. I'd give it a 4 out of 5 rating. It
> will handle 1500 watts, which is more then my AL-80B or THP solid state
> amp will put out. The problem I think you will find with auto tuners
> including the ones built into the radio is limited matching range due to
> the fixed values of L and C. You won't be able to load your
> grandmother's walker on 40 meters.
> It has a ton of memories and up and down L and C buttons so you can find
> a match manually if the auto function can't. An optional 20$ cable
> will interface to many rigs, and when connected this way hitting the
> auto tune button on the rig bypasses the internal tuner, puts the rig
> into cw mode at low power for the tune process, then returns to
> original mode and power when tuning is complete. If the amp relay
> jacks on the tuner are connected between the amp and radio, the amp
> will be bypassed during tune up. This relay is also supposed to
> prevent the amp from keying in the event of a high swr, but I can't say
> that I've really tested this function fully.
>
> There are some menus for which sighted help would be needed, but they
> are the set it and forget it type of stuff. Things like swr point at
> which it should start looking for a better match, and swr point for the
> amp relay to bypass the amp.
>
> 73, Steve KW3A
>
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