Fw: SAT III Stretch Question

[John Ross]

Hi List,
A few days ago someone had a query about FAC  #'s.  I checked my two units,
a SAT with FAC, and a SATlll. I was surprised when the results were
different at A0 and C8, so I queried Paul, at Inventronics. Below is his
answer, sent with permission.
Regards,
John M. Ross
Windsor, Nova Scotia, Canada.

----- Original Message -----
From: <Inventrncs@aol.com>
To: <piano.tech@ns.sympatico.ca>
Sent: Friday, February 04, 2000 4:35 PM
Subject: SAT III Stretch Question


> Hello John -
>
> The calculated FAC tuning is a little different in the SAT I than the SAT
> III.  When my father was going over the programming for the SAT III, he
took
> a fresh look at the way the SAT I/II was calculating the FAC tuning.  When
> the SAT I/II calculates a tuning it is a close approximation of the tuning
> the double octave beat formula would create.  With the SAT III he was able
to
> get the tuning created closer to the original double octave beat formula.
>
> There is a difference, there is nothing wrong with your new or old
> Accu-Tuner.
> Please let me know if you or anyone else on the list have any questions.
>
> Sincerely,
> Paul Sanderson
>
> > Hi Paul,
> >  I must have pushed a wrong button.
> >  My SAT with FAC, gives me different results from my SATlll, using the
same
> >  #'s
> >  e.g. FAC     8.0     7.0     6.0
>     SAT    A0 = -10.4
>     SATlll  A0 = -13.7
>
>     SAT    C8 = +33.1
>     SATlll  C8 = +33.8
>
> >  The numbers were just picked at random.   I just compared the two
units,
> >  because of
> >  a query on the Pianotech list.
> >  Is something wrong with my spare SAT?   Or is it just that a different
> >  program was used?
> >  Just wondering.
> >  Regards,
> >  John M. Ross
> >
>