Technical Data : “Receiving frequency : 518KHz(English), 490KHz or 4209.5KHz(Local)” “Receiving method : F1B” “Receiving sensitivity : 2 e.m.f(50Ω), 4% error rate” “Antenna impedance : 50Ω(Active), Power 9V (inner supply)” “Display : 5.7″”LCD” “Storage capability : 200 per channel including x 3 channels” “Power supply 12/24VDC,DC1030V” Include: – Receiver – Whip Antenna – Pre-amplifier