[Elecraft] CW Pitch Resolution

[Ron D'Eau Claire]

Assuming that you are talking about a KX3 or K3, they both tune in as little
as 1Hz steps depending upon your RATE setting. So set your pitch to the
closest 10 Hz, tune in a station and then adjust the tuning slightly as
needed. 

If you think the other station might detect the tiny offset when you
transmit, you and always rely on SPLIT or some combination of RIT/XIT to
keep the xmit frequency the same. 

Personally, I work in SPLIT all the time so, after tuning in zero beat with
the station I will call, I just tap A > B (or A=B) to put the transmit, B,
VFO on that frequency and then I'm free to adjust the main tuning all I want
without affecting the transmit frequency. Sometimes I do that just to listen
to a different pitch in a long rag chew. But I'm usually making changes of
100 Hz or more when I do that.  

None of the filters are narrow enough to show any difference in less than 10
Hz tuning from the presumed center. 

73, Ron AC7AC



-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of John Seney
Sent: Sunday, October 13, 2013 7:03 AM
To: Elecraft Elecraft
Subject: [Elecraft] CW Pitch Resolution

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