Channel (freq.): UHF Ch. 21-69 (470-862 MHz)No. of elements.: 20Passive antenna gain: 7,5 dB(i)Active antenna gain: 22,5 dB(i)F/B ratio: 21 dBBeam width: Horizontal 49-56°; Vertical 53-60°Antenna lenght: 40 cmImpedance: 75 Ohm