[Elecraft] Systematic error in spots as heard by K3

[Andy Durbin]

"If the spotter was using a rig without an adjustable sidetone, wouldn't the frequency they spot be dependent upon the tone they prefer to hear?"

The spotted frequency should be the suppressed carrier frequency which is independent of the choice of tone frequency.  Remember there are very few true CW transmitters in use now and most use DSP MCW of a USB or LSB suppressed carrier signal.

Go back to the days when we tuned to max signal then offset the BFO for desired pitch.  The TX station frequency was the carrier frequency and completely independent of our BFO setting.

I knew there was a problem with getting consistent RTTY spots because some spot mark frequency and some spot suppressed carrier frequency.  I was not aware of any ambiguity with CW spots.

Andy, k3wyc