No. of Elements 8 Channels Ch.5-12 Ch.21-69 Frequency Range 174-230MHz 470-862MHz Antenna Gain 3-5dBi 7-10dBi Beam Width H/V H360°V60° H50°V60° Front-back Ratio 5-10dB 8-13dB Impedance 75Ω Antenna Length 470mm Reception Distance 40Mile