Additional Features: Frequency Range: 1 GHz - 18 GHz Input Power (CW): 300 Watts VSWR: 2.0 : 1 Polorization: Linear Impedance: 50 Ohm Connector type: N Female Weight: 4 lb. Size: 7.8" X 9.5" X 5.6" max. Broadband - For sweep measurements High Gain - Lower Floor Noise for Emissions Two year warranty Individual calibration The Com-Power AH-118 is a standard broadband double ridged waveguide horn antenna linearly polorized and is designed specifically for EMC measurements for the 1-18 GHz frequency range. The Com-Power AH-118 is suitable for ANSI 63.4, CISPR16, EN 55022, FAA and other EMC standards that require emissions and immunity testing. The Com-Power AH-118 high gain reduces input power requirements to generate high electromagnetic field levels for immunity testing. High gain also increases antenna sensitivity to low level signals.