Search keys are used to select a subset of the entries in a log file. Simple search keys are strings of characters that are compared against the corresponding field in every log entry. Only entries with fields that exactly match the search key will be selected. (Upper/lower case differences are ignored during a search).
You can provide more than one search key to narrow the focus of the search. To get all CW QSOs with W1AW choose Select, fill in the "Call" field with W1AW and the "Mode" field with CW and then choose Search.
After a search use the scroll bar or mouse wheel to move through the selected entries. You can also choose one of the Display menu items to view the selected entries in a list, one per line.
To select all entries in the log choose Select and then choose Search without supplying any search keys.
For more information on search keys see Wildcards in Search Keys.
One unique feature of callsign search keys is that a call containing a single slash can match two versions of the call. For example if you specify KH6/W1ECT this will match log entries for the call KH6/W1ECT as well as entries for the call W1ECT/KH6. If you want an exact match for a specific form of the call precede the call with an = sign, for example: =W1ECT/KH6
Search keys for the Frequency field also get some special handling.
There are some special cases for Mode field search keys; some keys will match more than one value:
SSB Matches SSB, LSB, USB Phone Matches, SSB, LSB, USB, AM, FM, ... Data Matches PSK31, RTTY, AMTOR, ...
If you want to explicitly match records that have the mode set to one of these special values precede the value with an =, e.g. for SSB use =SSB as the search key.