[Antennas] How do you use an antenna tuner?

Mon, 11 Mar 2002 18:25:17 -0800

Absolutely!  I feel it is the easiest and best way to make adjustments.

Danny, K6MHE

At 02:04 PM 3/11/2002 -0500, you wrote:
>         Would we be able to find the maximum radiation by using a field
>strength meter?
>
>
>
> > >
> > > My 2 cents worth.
> > >  Tuners can tune things they really have no business
> > > tuning in the first place, and since a t-net tuner has
> > > infinite settings for a match(only 1 being the correct
> > > setting), it is difficult to know when the tuner is
> > > doing any good.
> > >  THe simplest method for tuning(from Walt Maxwell's
> > > 'Reflections') is to add a current sensing indicator on
> > > the ouput side of the tuner.  This is a very simple
> > > device consisting of small powdered iron toroid(eg,
> > > T50-2), a germanium diode, capacitor, 50k ohm carbon
> > > potentiometer, and a good meter. The antenna center
> > > output is wound 1 turn thru the toroid, and about 20
> > > turns of small diameter wire is wound for the
> > > secondary.  Tuning for maximum output on the meter is
> > > all that is required. WHen the tuner settings are at
> > > their optimum, the meter is showing the most antenna
> > > current.
> > >
> > >  Without an output indicator, tuning in receive mode
> > > for maximum received signal will indicate optimum
> > > setting also.
> > >
> > >   Pat W0OPW
> > >
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