Re: [Elecraft K3] Frequency Calibration using Sidetone

Posted by Pete Smith N4ZR on Apr 06, 2011; 10:47am
URL: http://elecraft.85.s1.nabble.com/Elecraft-K3-Frequency-Calibration-using-Sidetone-tp6243828p6245552.html

If you don't have perfect pitch, you can use a technique I recently
described on the Reverse Beacon Network blog, substituting Spectran for
a good ear, which I don't have.  See
<http://reversebeacon.blogspot.com/2010/12/frequency-calibration-and-rbn.html>
for the full story.

73, Pete N4ZR

The World Contest Station Database, updated daily at www.conteststations.com
The Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com,
spots at telnet.reversebeacon.net, port 7000



On 4/5/2011 5:08 PM, David Robertson wrote:
> On usb mode I tune the K3 to the reference standard you are using ( Any AM station such as WWV or any station of a known frequency). I set the readout to the exact known frequency of that station. I note the pitch of the sound I hear from the station (the tone from WWV or CHU works best) . Next I switch to LSB and note the pitch of the sound. If they are identical then the K3 is calibrated. If the pitch changes then you have to configure the master oscillator's frequency so the pitch between USB and LSB match.  I relies the above method requires a good ability to note slight changes in pitch. Some of us do not posses that ability and must use a different method. For those that do, this method works.
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