The FM9856B/NF-20 from Fairview Microwave is a Horn Antenna with Frequency 8.2 to 12.4 GHz, Gain 20 dBi, E Plane 16.5 Degrees, H Plane 16.1 Degrees, Weight 131.54 g. Tags: Standard Horn, Pyramidal Horn Antenna. More details for FM9856B/NF-20 can be seen below.