How many locations have the call signs dxjp-fm? 
CREATE TABLE table_17487395_1 (location VARCHAR, callsign VARCHAR)
SELECT COUNT(location) FROM table_17487395_1 WHERE callsign = "DXJP-FM"
### Context: CREATE TABLE table_17487395_1 (location VARCHAR, callsign VARCHAR) ### Question: How many locations have the call signs dxjp-fm?  ### Answer: SELECT COUNT(location) FROM table_17487395_1 WHERE callsign = "DXJP-FM"