[Elecraft] Odd K3s Behavior for 30 meter DATA mode

[Bob]

Hi,

I have a K3s with FW 5.60.

On all bands except 30 meters, when I place the rig into the DATA mode, I
see the green RX window on my P3 showing to the right of the center (dial)
frequency and matching my selected filter width.  This is what I'd expect
as DATA should be sending the equal of USB.  However, on the 30 meter band
only, the green RX windows is half above and half below the center (dial)
frequency.  It's acting like the mode is AM.  Also I can't shift the filter
below 1.1 KHz (at least for a 2.8 KHz filter).

This must be some "Per Band" feature that I am not understanding.

Any idea as to how I can get 30 meters to work like the rest of the bands?

73, Bob, WB4SON