The ATH7G18A from AR RF/Microwave Instrumentation is a Microwave Horn Antenna that operates from 7.5 to 18 GHz. It can handle an input power of 2800 W, provides a gain of 20 dBi and has a VSWR of 1.5:1. The antenna supplies the constant high-intensity fields necessary for RFI/EMI field testing. It has a compact and lightweight design but is tough enough for outdoor use. The antenna measures 9.0 x 10.8 x 20.6 cm, has a WRD-750 waveguide interface and can easily be mounted on a rigid waveguide. The export classification for this equipment is EAR99.