PDA-Based ETDs

[Gregor _]

Here is a photo of my Ipaq with the supplies battery with 2.8 Ah. It´s a little bit bigger than the original one but works longer: about 8 hours tuning time.

Gregor


> From: mfarrel2 at tampabay.rr.com
> To: pianotech at ptg.org
> Subject: Re: PDA-Based ETDs
> Date: Fri, 2 May 2008 09:20:59 -0400
> 
> How many hours will your PDA run with the lowest screen brightness setting? 
> What tuning software are you running?
> 
> My last tuning, I started with a 100% charge, I spent 2.5 hours pitch 
> raising and tuning (and playing with my PDA - only the second tuning with 
> it) and I used up 45% of the charge. My screen brightness is set at the 
> lowest setting that illuminates the screen (one further down is black), I 
> have all my wireless and whatever else stuff turned off  (or at least I 
> think I do - I've checked everything I can find). I have the volume off.
> 
> What else can I do to conserve power? If this one tuning is indicative of my 
> run time, I will be down to 10% charge after five hours. Does yours last 
> longer? If so, I wonder if your PDA is simply more energy efficient than 
> mine - or maybe a bigger battery. I am using an HP ipaq 111. I has a 3.7V 
> 1.2 Ah battery. I am running Verituner software.
> 
> And I'll add an external battery pack long before I start tuning unisons 
> after all center strings. I'm getting old and crabby and I ain't gonna 
> change!  ;-)
> 
> A lot of this depends on how one tunes and uses the PDA. If you are a 
> 45-minute tuner and you don't tune unisons as you go - you might only have 
> the PDA on for 20 minutes per tuning. At that rate even my PDA would do 8 
> tunings and still have more than half the battery! Nothing wrong with that 
> approach if one is happy/comfy with it - I simply need to have my PDA on for 
> two hours for a pitch raise and a tuning to keep me happy - and I think an 
> external battery pack will get me there.
> 
> Terry Farrell
> 
> ----- Original Message ----- 
> From: 'Dean May' <deanmay at pianorebuilders.com>
> To: ''Pianotech List'' <pianotech at ptg.org>
> Sent: Friday, May 02, 2008 7:41 AM
> Subject: RE: PDA-Based ETDs
> 
> 
> >I confess I don't understand why people are having battery problems. I can
> > get 6-8 tunings out of a charge. If you turn it down to the dimmest 
> > setting
> > the battery lasts forever. You can even turn the display off and still see
> > it enough to tune if you shine a desk lamp on it. Then it will last 
> > forever.
> >
> >
> > If you find the charge getting low at the end of the day you can also 
> > reduce
> > the time you need the Ipaq on (if it's not a pitch raise). Just don't tune
> > unisons as you go. Or just tune the temperament with the Ipaq (or whatever
> > octaves you have trouble with by ear) and the rest by ear.
> >
> > Dean
> >
> > Dean May             cell 812.239.3359
> >
> > PianoRebuilders.com   812.235.5272
> >
> > Terre Haute IN  47802
> >
> >
> >
> >
> > -----Original Message-----
> > From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On 
> > Behalf
> > Of Jon Page
> > Sent: Friday, May 02, 2008 7:27 AM
> > To: pianotech at ptg.org
> > Subject: PDA-Based ETDs
> >
> > Why have a massive battery pack? If something is going to be tethered
> > to the PDA why not simply use the AC adapter? Bring an extension cord.
> > -- 
> >
> > Regards,
> >
> > Jon Page
> > 
> 
> 

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