CREATE TABLE table_40243 ("Call sign" TEXT, "Frequency MHz" TEXT, "City of license" TEXT, "ERP W" FLOAT, "FCC info" TEXT)

What city does call sign K248am have its license in?
SELECT "City of license" FROM table_40243 WHERE "Call sign" = 'k248am'
SELECT "City of license" FROM "table_40243" WHERE "Call sign" = 'k248am'