Start LinLogBook. Open your database from the File menu. Now you can enter your
qso data. To make the logging easier, you can select default values for the band and
the mode.
You can search in your loogbook for a qso with a special callsign by entering the
callsign in the callsign field. If you enter only some initial values all callsigns starting
with these values are looked for and the qsos are listed.