Its not an amp, its an artificial ground and is connected to the ground terminal
of the radio. Its never anywhere in the antenna path.
Tom
Tom Brennan KD5VIJ, CCC-A/SLP
web page http://titan.sfasu.edu/~g_brennantg/sonicpage.html
On Mon, 15 Apr 2013, Steve Dresser wrote:
> Date: Mon, 15 Apr 2013 15:59:56 -0400
> From: Steve Dresser <[log in to unmask]>
> Reply-To: For blind ham radio operators <[log in to unmask]>
> To: [log in to unmask]
> Subject: Re: mfj 931
>
> Tom,
>
> If you're using the internal tuner on the TS-2000, how can it tune the
> antenna when the amplifier is in the path?
>
> If you wanted to hook the meter up with the cabinet closed, you could
> install a three-conductor jack on the back, with the meter connected to the
> tip and the ring so neither terminal would be directly grounded.
>
> Steve
>
> ----- Original Message -----
> From: "Tom Brennan" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Monday, April 15, 2013 12:52
> Subject: Re: mfj 931
>
>
> > Steve, I do have one. In fact, I've got one of the Omega units. However,
> > this
> > thing has to be adjusted all the time and you have to work with it while
> > adjusting it. Seems like a real potential problem to have the cabinet off
> > of
> > the unit to access it. Since its essentially to control rf ground issues
> > that
> > seems like it would defeat the purpose of it. Since the meter is reading
> > current I'm also not sure what that would do to the stability and
> > reliability of
> > its circuitry. Apparently you have to adjust this thing going back and
> > forth
> > between it and the antenna tuner (mine is internal on a ts2000) to adjust
> > it.
> > Then there are also the swr measures to change on the antenna so it would
> > be
> > quite a circus to add a vom to that mix <g>.
> >
> > Tom
> >
> >
> > Tom Brennan KD5VIJ, CCC-A/SLP
> > web page http://titan.sfasu.edu/~g_brennantg/sonicpage.html
> >
> > On Mon, 15 Apr 2013, Steve Dresser wrote:
> >
> >> Date: Mon, 15 Apr 2013 12:12:32 -0400
> >> From: Steve Dresser <[log in to unmask]>
> >> Reply-To: For blind ham radio operators <[log in to unmask]>
> >> To: [log in to unmask]
> >> Subject: Re: mfj 931
> >>
> >> Tom,
> >>
> >> If you had one, you could try putting a VCO across the meter. That would
> >> give you some indication of what the meter is doing.
> >>
> >> Steve
> >>
> >> ----- Original Message -----
> >> From: "Tom Brennan" <[log in to unmask]>
> >> To: <[log in to unmask]>
> >> Sent: Monday, April 15, 2013 11:25
> >> Subject: mfj 931
> >>
> >>
> >> > I've got an MFJ 931 artificial ground. The unit has a meter on it
> >> > that's
> >> > supposed to let you watch current and adjust both current and
> >> > capacitance
> >> > with a
> >> > couple knobs of the unit itself. Has anyone got a work around for that
> >> > meter?
> >> > I called MFJ tech support and spoke to Bob. He was really unhelpful
> >> > with
> >> > the
> >> > whole thing first telling me that you didn't need the meter because all
> >> > it
> >> > shows is current and then telling me you had to use it to adjust the
> >> > unit.
> >> > I
> >> > never could get him to tell me anything other than you didn't need the
> >> > meter.
> >> > That's the first time in years that I've ever had a useless response
> >> > from
> >> > MMFJ's
> >> > tech support but I guess there's a first time for anything. Therefore,
> >> > any
> >> > suggestions from any totals who don't have eyes around for using this
> >> > thing
> >> > would be appreciated.
> >> >
> >> > Tom
> >> >
> >> >
> >> > Tom Brennan KD5VIJ, CCC-A/SLP
> >> > web page http://titan.sfasu.edu/~g_brennantg/sonicpage.html
> >> >
> >>
> >
>
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