The AH-220 is a broadband double ridge Horn Antenna capable of handling up to 800 Watts CW.
This is a linearly polarized Double Ridge Waveguide Horn Antenna, operating over the frequency range of 200 MHz to 2 GHz.
While it is designed to serve as the receiving antenna for radiated emissions tests between 200 MHz and 1 GHz, as specified within RE102 of MIL-STD-461, it can also be used as a transmitting antenna for radiated immunity tests for frequency rage 200 MHz to 2 GHz.