Correctly measuring FAC notes for AccuTuners.

[Joe & Penny Goss]

Jim I understand what you are saying and agree that your method will work ,
But as I have inherited my grandmothers "forgetter" Does the SAT111 make it
simpler?
Joe
P.S. thanks for getting me to purchase the SAT11

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> From: Jim Coleman, Sr. <pianotoo@IMAP2.ASU.EDU>
> To: Rogerio Cunha <rogeriocunha@openlink.com.br>
> Cc: Pianoteck Mensagem <pianotech@ptg.org>
> Subject: Correctly measuring FAC notes for AccuTuners.
> Date: Saturday, May 23, 1998 12:51 PM
> 
> Hi Rogerio:
> 
> Now I can reply about the C6 measurment of the FAC series. Quite often I
> have been puzzled when trying to measure C6. I would then discover that I
> had inadvertently touched the MEM button before tuning C6 at its 
> fundamental.
> Then noticing that, I would touch the TUNE button and the UP octave
button,
> going to C7 and I would notice that there was very little difference in
> pitch. This didn't make any sense to me, because I expect to get a
reading
> from 5.0 to 8.0 cents for this note. After puzzling over this I would go
> back to the C6 setting and retune to 0.0 in TUNE mode, then change to
octave
> 7 and find that the LEDs were indeed moving clockwise like they were
> supposed to do.
> 
> Now that I have everyone's attention, I would like to lay out a method
> whereby you can measure the FAC notes more accurately and within 1 minute
> of time. This works best when the piano is close to pitch. If not, you
are
> going to do a pitch raise first which can use most any tuning in memory.
> Right?
> 
> With SAT turned on, touch TUNE Button. Hit UP Oct button to get to 
> Octave 5. Play F3, hold down MSR button till LED rotation almost stops.
> Use UP/DN buttons to stop 4 lights momentarily. Hold down SHIFT and touch
> MSR (RST) button so that right window shows 0.0. Hit UP OCT. button once
> showing F6 in left window. Pluck string midway between hammer
strike-point
> and Agraffe or V-Bar. Hold down MSR button to almost stop LEDs. Pluck and
> trim UP/DN buttons to stop LEDs. Hold down SHIFT button and touch 
> STO-STRETCH. button. Machine will change to A5 if everything was done
right.
> Play A4, hold down MSR button until LEDs are almost stopped, completely
> stop LEDs (with 4 LEDs lit) with UP/DN buttons. Hold down SHIFT button 
> and touch MSR (RST) button (this zeroes in the 2nd partial of A4). Hit UP
> OCTave button to 6. Play A4, hold down MSR button to almost stop the
LEDs.
> Use UP/DN buttons to stop 4 lights momentarily (the right display will
> show the difference between the 2nd partial and 4th partial of A4). Store
> this by holding down the SHIFT button and touching the STO-STRetch
button.
> When done correctly the machine will advance to C6. Play C6, stop the
LEDs
> with the MSR and UP/DN cents buttons (preferably stopping 4 lights). Hit
> the UP OCTave button to show C7 in left window. Play C6 repeatedly
(often)
> while holding down the MSR button and/or the UP/DN buttons to stop 4 LEDs
> (this shows the difference between the fundamental of C6 and its 2nd 
> partial). Hold down the SHIFT button and touch the STO-STRetch button.
> 
> At this point, you may review the three stretch numbers by first holding
> down the STRETCH button to see the value for F3. Write this number down
on
> your service records. After releasing the button, hold down again to see
the
> stretch value of A4. Write it down. Release and hold down a third time to
> see the stretch value of C6.
> 
> MOST IMPORTANT STEP. Recalibrate machine by holding down both SHIFT and
TUNE
> buttons at the same time and then release. When LEDs are stopped, hit
TUNE 
> button.
> 
> Next select a page of memory by holding down the SHIFT button while using
> UP/DN cents buttons to locate a page of memory you wish to use (mostly I
> use page 1, or 2 as temporary pages where I do not wish to keep a
permanent
> record of this particular piano). Let's assume you chose page 10. With
page
> 10 showing in the right window, hold down the STRETCH button, hold down
the
> MEM button, release the STRETCH button, release the MEM button. In about
7
> or 8 seconds time the entire tuning for that piano will be recorded (the
new
> SAT III does it in 5 seconds). 
> 
> Watch for the July '98 PTG Journal for a description of the SAT III. I
have 
> the prototype in my possession now. Regular production is scheduled soon.
> Patience, it's worth waiting for.
> 
> Jim Coleman, Sr.
> 
> 
> 
> On Sat, 23 May 1998, Rogerio Cunha wrote:
> 
> > Thanks to JIM, NEWTON, DAVE and JOE. I will try to pluck the string and
> > after I will  return with more information. Please on my original
> > message correct D6 to C6.  Rogerio Cunha - IC Member of the Guild - Rio
> > de Janeiro
> > 
> >