[Elecraft] CW Pitch Resolution

[Tom]

There is no reason to be scientific about your CW pitch setting.

Set the pitch to the tone you prefer and can hear the best.  Use a CW
filter.  If you don't have one get one.

Amateure Radio Operator N5GE

On Sun, 13 Oct 2013 14:46:21 +0000, you wrote:

>Hi John,
>
>I read that article too.  Personally I think it is a lot of bunk. It 
>assumes perfect hearing.
>
>Where ones sweet spot is depends upon his hearing and hearing 
>degradation.  The closest pitch to 432 Hz is 429.97 Hz on my K3.
>Some people's sweet spot may be 700 Hz-- since 432 Hz may be 20 db down 
>from there!
>
>There was a link somebody posted a year or so ago.  It could be used 
>determined how much pitch difference one can detect.  For most people is 
> >3 Hz.  For piano tuners and musicians with perfect pitch it is likely 
>to be less.  You can also try using the K3's fine tuning and tune in a 
>carrier.  The increase or decrease the K3's frequency by 3Hz and see if 
>you can detect any change.
>
>Thus most won't perceive any difference between 429.97 and 432 Hz.
>If you can, than congratulations on your perfect pitch.
>
>73 de Brian/K3KO
>
>On 10/13/2013 14:03, John Seney wrote:
>> Hi Folks:
>>
>> The CW pitch resolution in my K3 seems to be 10 Hz per step. A recent article in QST
>> spoke of 432 Hz as being a sweet spot frequency based on musical notes. A quick search
>> on frequencies of real musical notes shows hardly any are at integer values.
>>
>> Note -- Freq -- Wavelength
>>
>> D4	293.66	117.
>> D#4/Eb4	311.13	111.
>> E4	329.63	105.
>> F4	349.23	98.8
>> F#4/Gb4	369.99	93.2
>> G4	392.00	88.0
>> G#4/Ab4	415.30	83.1
>> A4	440.00	78.4
>> A#4/Bb4	466.16	74.0
>> B4	493.88	69.9
>> C5	523.25	65.9
>> C#5/Db5	554.37	62.2
>> D5	587.33	58.7
>> D#5/Eb5	622.25	55.4
>> E5	659.26	52.3
>> F5	698.46	49.4
>> F#5/Gb5	739.99	46.6
>> G5	783.99	44.0
>> G#5/Ab5	830.61	41.5
>> A5	880.00	39.2
>>
>> Could the firmware be changed for experimentation with this or is there an easier
>> way to accomplish it with RIT or filter offsets?
>>
>> 73
>>
>> John - WD1V
>>
>>
>>
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