[Elecraft] Sidetone or zero beat

[Darwin, Keith]

Tone matching judgment - depending on what you're referring to, nobody
has it.

Most people can identify which of two tones is higher or lower if they
have enough pitch separation.  As they get closer in pitch, people's
ability to tell high or low (sharp or flat) goes away.  At that point
you have to listen to the beat pattern that the tones establish in your
brain.  I find it is pretty easy to do with the K2 PROVIDED I have the
side tone output going through a good low pass filter to make it more of
a pure sine wave.  Once filtered, the signal and sidetone have the same
"timbre" and detecting the beat frequency is much easier.

In the music field, we use guitar tuners.  They tell you if you're sharp
of flat.  I've often though of using a guitar tuner to tune CW.  622 Hz
is an Eb, 659 Hz is an E.

- Keith -

-----Original Message-----
From: Brett gazdzinski
 
I find the K2 and other modern rigs hard to zero, as I have NO tone
matching judgment.