How many locations have the callsign DXGH?
CREATE TABLE table_28794440_1 (location VARCHAR, callsign VARCHAR)
SELECT COUNT(location) FROM table_28794440_1 WHERE callsign = "DXGH"
### Context: CREATE TABLE table_28794440_1 (location VARCHAR, callsign VARCHAR) ### Question: How many locations have the callsign DXGH? ### Answer: SELECT COUNT(location) FROM table_28794440_1 WHERE callsign = "DXGH"