CREATE TABLE table_5966 ("Callsign" CLOB, "Area served" CLOB, "Frequency" CLOB, "Band" CLOB, "On-air ID" CLOB, "Purpose" CLOB)

Frequency of 0 864 has what callsign?
SELECT "Callsign" FROM table_5966 WHERE "Frequency" = '0 864'
SELECT "Callsign" FROM "table_5966" WHERE "Frequency" = '0 864'