[Elecraft] Slight K2 Drift When on PSK31

[designer]

This "drift" is discussed in the ReadMe file of one of the PSK 
programs (WinPSK, MixW, TrueTTY, etc.). If both have snap and/or AFC 
and the sound cards are "off"  a little, then one slowing creeps up 
the band as each station adjusts to the other.

A protocol was suggest were only one party used Snap and/or AFC. If 
the K2 is solid in other modes, I'd say this is a soundcard 
(calibration?)/software issue.

73,
Paul