In satellite dish and antenna design parlance, a feedhorn (or feed horn)'s a horn antenna used to convey radio waves between the transceiver (transmitter and/or receiver) and the reflector. The feedhorn also selects the polarity of the waves to be received, which helps to attenuate unwanted signals from adjacent channels and transponders, and from other communications satellites at nearby orbital positions. This can be either horizontal or vertical if the polarization's linear, or clockwise or c… (More on Feedhorn)