รีเลย์ 5kw ของ dyfj-tv ครอบคลุมแค่ไหน? ไม่จำเป็นต้องใช้ตารางทั้งหมด
What is the coverage of relay 5kw of dyfj-tv?It is not neccessary to use all the tables.
 table_12379297_1:  (coverage__transmitter_site_ [ VARCHAR ] callsign [ VARCHAR ] station_type [ VARCHAR ] power__kw_ [ VARCHAR) ]
SELECT coverage__transmitter_site_ FROM table_12379297_1 WHERE station_type = "Relay" AND power__kw_ = "5kW" AND callsign = "DYFJ-TV"