CREATE TABLE table_30769 ("Branding" TEXT, "Callsign" TEXT, "Frequency" TEXT, "Power  ( kW ) " TEXT, "Station Type" TEXT, "Location" TEXT)

Where are the broadcasting companys with the callsign DWRH located?
SELECT "Location" FROM table_30769 WHERE "Callsign" = 'DWRH'
SELECT "Location" FROM "table_30769" WHERE "Callsign" = 'DWRH'