Standard Gain Horn Antenna LB-5-10-ASPO, operating from 140 to 220GHz with a nominal 10dB gain and low VSWR 1.45:1 with UG387/U-M output. The model LB-5-10-ASPO has uniform gain through its frequency span, providing efficient performance characteristics and directionality. Constructed of lightweight corrosion-resistant aluminum, the horn comes with a specially designed weatherproof radome which provides excellent protection against the rain and dust but has very little loss across the full operating frequency band. This standard gain horn antenna is linearly polarized and ideally suited for EMI testing, direction finding, surveillance, antenna gain and pattern measurements and other applications.