The Model AT4418 from AR RF Microwave Instrumentation is a wideband, high gain, microwave horn antenna that provides a minimum gain of 7 dB over the frequency range of 1 GHz to 18 GHz over isotropic. The Model AT4418 supplies the constant high intensity fields necessary for RFI/EMI field testing within and beyond the confines of a shielded room. It can be used for emissions testing as well. Other product characteristics include power input (maximum) of 300 watts CW up to 7 GHz, impedance of 50 ohms nominal, and VSR (typical) of 2:1. It is compact and lightweight but tough enough to withstand outdoor use and mounts easily on a tripod.Find more product information on the AR RF Microwave website.