SELECT "Location" FROM table_30769 WHERE "Callsign" = 'DWRH'
Where are the broadcasting companys with the callsign DWRH located?
CREATE TABLE table_30769 (
    "Branding" text,
    "Callsign" text,
    "Frequency" text,
    "Power (kW)" text,
    "Station Type" text,
    "Location" text
)