CREATE TABLE table_name_14 (coverage__transmitter_site_ VARCHAR(255), power__kw_ VARCHAR(255), callsign VARCHAR(255))
What is Coverage (Transmitter Site), when Power (kW) is "10kW", and when Callsign is "DYFX-TV"?
    
SQL: SELECT coverage__transmitter_site_ FROM table_name_14 WHERE power__kw_ = "10kw" AND callsign = "dyfx-tv"