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: [email protected] [mailto:[email protected]] 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 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
