Yagi directional antenna,high performance (industry standard), materials hard aluminum, full material, frequency range 1070-1110 MHz, with open half wave dipole for the reception secondarily radar of the mode S/ADS b beacon, downlink frequency 1090 MHz, mounting in front of mast, polarization horizontal/vertical, connector N-female, completely with robust mast clamp - all parts made of stainless steel V2A. Technical data: G 14,5 dBi, V/R > 22 dB, alpha E 34°, alpha H 40°, length 116 cm, B 7 cm, H 16 cm.