CREATE TABLE table_77614 ("Call sign" CLOB, "Frequency MHz" CLOB, "City of license" CLOB, "ERP W" FLOAT, "Class" CLOB, "FCC info" CLOB)

Name the call sign for ERP W of 4
SELECT "Call sign" FROM table_77614 WHERE "ERP W" = '4'
SELECT "Call sign" FROM "table_77614" WHERE "ERP W" = '4'