[TenTec] TT 238C will not tune

[Wade Staggs]

I do the same Bob, except for the other morning. You were correct about the
2:1 efficiency when that darn 450 ohm stuff gets wet. It just bothers me to
see the SWR Meter bouncing up like that. For the others ... When I call the
Tennessee Phone Net .. Morning Session .. it is just that time of morning
when the Sun is rising to burn off the moisture/morning dew. So, about 20
minutes into my Net, the SWR changes on my antenna/feedline. If, I had the
room ... there would be a dedicated and Coax fed Dipole just for 3.980 KHz.
Any other Net and I could avoid the small window of time each morning that
gives this problem.
Ten Tec Product Idea !!!!!! Why doesn't Ten Tec come up with an Analyzer
that does not look like a Square Box? Something with a switch set-up that
is a cool looking Console, that could be switched into and out of circuit.
Or better yet .... Built into an antenna tuner Manual of course. So that
when the Dummy Load is selected to tune the Amp .... You can also Set the
SWR/Match on your Antenna. I hate the looks of the Coax Switch and Big Box
look of the Analyzer on the desk but, it gets the job done without major
carrier signals one the air and making one heck of a racket.
                  There you go Ten Tec.... A New Product that helps the
operator and cuts down on the noise pollution of the bands... Please, send
my check to the QRZ address of my call.... Hi Hi ...

73 de Wade/KJ4WS

On Sun, Jul 28, 2013 at 1:24 PM, Robert Mcgraw <rmcgraw at blomand.net> wrote:

> Wade, I fully agree.  A station must have or have available some type
> antenna analyzer.  Otherwise, one is mostly "flying in the dark by the
> seat of their pants".
>
> I always use my analyzer to make all tuner adjustments, therefore  I
> never use carrier to tune.  I also use a dummy load to tune the amp thus
> the tuner is set correctly and the amp is tuned correctly and no signal
> put on the air.
>
> And as a courteous operator, no QRM generated.
>
> 73
> Bob, K4TAX
>
>
> > *When I have a problem such as this, the MFJ Analyzer comes in real
> > handy.
> > So much better than trying to tune up with the radio. Work your way up or
> > down from a frequency that will tune well and you should find the sweet
> > spot. Have you tried adding or shortening the Coax/Feed Line by a small
> > amount? On one installation we had to leave an 8 foot section of RG-213
> > in
> > circuit to get things to match. Later the fellow raised the antenna by 20
> > feet and the Coax was no longer needed. Finding the correct match can be
> > daunting. Best of luck to you. 73 .....*
> > *                                               Wade/KJ4WS*
> >
> > On Sun, Jul 28, 2013 at 12:52 AM, Richards <jrichards at k8jhr.com> wrote:
> >
> >>
> >>
> >> On 7/27/2013 7:15 PM, Bob McGraw - K4TAX wrote:
> >>   Now if the inductance is maximum value then
> >>
> >>> it is very apparent where Z should be located, either on the input of
> >>> L
> >>> or the output of L.  I believe it general practice to start with
> >>> maximum
> >>> inductance for adjustment of any L network.
> >>>
> >>
> >> ______________________________**_______________
> >>
> >>
> >>         Hmmm...  so it appears the instruction manual
> >>         does not describe the best approach?  I understood
> >>         the user manual to say I should start with zero
> >>         on the Inductor, and the Capacitor at around 2.
> >>
> >>         In contrast, based on your description, it appears
> >>         I would be better off starting with the inductor in
> >>         the middle - away from either end - and that starting
> >>         there will make it more obvious what initial capacitor
> >>         setting to select on the BYPASS switch.  I know that
> >>         is not "maximum" - but it would assure that I started
> >>         working against a substantial inductance, rather
> >>         than zero.
> >>
> >> Or... have I misunderstood?
> >>
> >> ---------- Thanks - K8JHR  -----------------------
> >>
> >>
> >>
> >>
> >>
> >> --.
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> >>
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>
>
> --
> Disclosure:
> I am a Tentec Ambassador and compensated according to the Tentec
> Ambassador plan. I serve as a volunteer beta test person for the Omni
> VII, Eagle and Argonaut VI products.   Otherwise, I hold no business or
> employment interest with Tentec.
>
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