[Elecraft] power out variation using FSK-D

[Mark n2qt]

I notice that there is a slight power output variation between the two FSK
tones (as seen on an external meter, there isn't enough resolution on the
K3's meter to see it).  Is this a result of filter ripple or is something 
else
at work here?  (since not AFSK not EQ or sound card settings).

Mark n2qt