Hi Gert,

Yes, you did give me something to do - as if I'm not already busy enough?  :-)

Your scheme sounds like an intriguing addition to the simplified spreadsheet, 
however, I have a looming deadline and need to finish the final draft of my 
book first before launching off on a complex spreadsheet design. Perhaps there 
are some in this group who can try developing this idea in the meantime?

Thanks very much for your suggestion!

Cheers, Ken
_______________________
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Wyatt Technical Services LLC
56 Aspen Dr.
Woodland Park, CO

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On Feb 21, 2014, at 2:19 AM, ce-test, qualified testing bv - Gert Gremmen 
<[email protected]> wrote:

> Hi Ken,
> 
> I do not know if digital multipliers
> an dividers can divide by more complex schemes than N/R !
> But this would be a nice enhancement to identify any
> possibilities.
> However, by specifying both N and R to range from 1-10
> you get 100 possible results (with some duplicates), so
> the tool will lose usefulness for larger values of N and R.
> I think that a matrix will give best results, together with
> a 2 -dimensional lookup function comparing the results
> in the matrix with a large array of common crystal frequencies....?
> A second array with the present crystal frequencies to be put in (4-5) ?
> 
> Note that a offending crystal can easily be identified with
> a receiver using SSB demodulation (and a speaker) and a cold spray....
> Upon cooling the offending crystal oscillator the drift
> will be heard very clearly.
> 
> 
> 
> Hey, now I got you something to do ;<)))
> 
> Regards,
> 
> Ing.  Gert Gremmen, BSc
> 
> 
> 
> [email protected]
> www.cetest.nl
> 
> Kiotoweg 363
> 3047 BG Rotterdam
> T 31(0)104152426
> F 31(0)104154953
> 
>  Before printing, think about the environment. 
> 
> 
> Van: Ken Wyatt [mailto:[email protected]] 
> Verzonden: Thursday, February 20, 2014 4:18 PM
> Aan: ce-test, qualified testing bv - Gert Gremmen
> Onderwerp: Re: [PSES] Harmonic analyzer tool
> 
> Hi Gert, that's a good idea. Is the equation always "N/R"? If so, it might be 
> easiest to create a second spreadsheet with a calculated column of divisors 
> (=N/R). Thanks for the idea.
> 
> Cheers, Ken
> _______________________
> Kenneth Wyatt
> Wyatt Technical Services LLC
> 56 Aspen Dr.
> Woodland Park, CO
> 
> Phone: (719) 310-5418
> 
> Email Me! | Web Site | Blog
> The EMC Blog (EDN)
> Subscribe to Newsletter
> Connect with me on LinkedIn
> 
> On Feb 20, 2014, at 2:03 AM, ce-test, qualified testing bv - Gert Gremmen 
> <[email protected]> wrote:
> 
> 
> Hi Ken,
> 
> Nice tool, but i am missing something.
> More an more often microprocessors can multiply
> external oscillators with an arbitrary number for internal operation,
> and sometimes even with N/R where N and R are
> arbitrary integers. Have you thought of that in your
> sheet ?
> May I invite you to enhancing your sheet with N and R ???
> 
> Regards,
> 
> Ing.  Gert Gremmen, BSc
> 
> 
> Van: Ken Wyatt [mailto:[email protected]] 
> Verzonden: Thursday, February 20, 2014 12:53 AM
> Aan: [email protected]
> Onderwerp: [PSES] Harmonic analyzer tool
> 
> Hi All,
> 
> I just posted details on a simple crystal oscillator harmonic analyzer tool:
> 
> http://www.edn.com/electronics-blogs/the-emc-blog/4428570/Harmonic-analyzer-tool
> 
> The blog posting has a link to download the spreadsheet.
> 
> Cheers, Ken
> _______________________
> Kenneth Wyatt
> Wyatt Technical Services LLC
> 56 Aspen Dr.
> Woodland Park, CO
> 
> Phone: (719) 310-5418
> 
> Email Me! | Web Site | Blog
> The EMC Blog (EDN)
> Subscribe to Newsletter
> Connect with me on LinkedIn
> 
> -
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