Hi Lennart
It’s quite easy…
All you have to do is include <OPERATOR:6>SM5CBN in your ADIF for each SE5B contact… most loggers support both the STATION_CALLSIGN and OPERATOR fields so can auto-generate this.
Alternatively, for your SE5B activities, request the Log Manager specifies the Operator during upload.
This guidance applies to anyone operating Club, Vanity or Special Event callsigns
