The DRG-7518-A is a linearly-polarized wide-band Dual-Ridged Horn Antenna. It is designed to transmit or receive in the frequency band from 7.5 GHz to 18.0 GHz with low VSWR, high gain, uniform E-plane and H-plane radiation patterns, and medium transmit power capability. The antenna may be used with its typical antenna factor characteristic to make approximate field strength measurements. Greater accuracy requires individual calibration. The DRG-7518-A is supplied with a Type SMA Female waveguide-to-coax adapter that can handle 50 Watts CW power. The antenna is ideally suited for EMC testing, direction finding, surveillance, gain measurements, and pattern measurements.