[Elecraft] [KX1] Xmit frequency differs from display on one band

[Chip Stratton]

Using the DDS menu, I have calibrated the KX1 so that the transmitted
carrier frequency is displayed accurately on the 20 meter band. However, on
the 40 meter band the carrier is 350 Hz higher than shown on the display.

Am I overlooking something or is the disparity something I just need to live
with?

Thanks,
Chip
AE5KA