The "Preferred Location Source" panel will default to "Imported or received QSO", because that was DXKeeper's behavior prior to
version 16.6.5.


When processing a QSO imported from an ADIF or tab-delimited file, or received from another application,

- If "Imported or received QSO" is selected in the "Preferred Location Source" panel, DXKeeper will seek Location information from
the imported or received QSO. If no Location information is specified in the imported or received QSO, DXKeeper will seek Location
information from the Callbook lookup results for the imported or received QSO's callsign.

- If "Callbook" is selected is selected in the "Preferred Location Source" panel, DXKeeper will seek Location information from the
Callbook lookup results for the imported or received QSO's callsign. If no Location information is specified in the Callbook lookup
results, DXKeeper will seek Location information from the imported or received QSO