Editing Feed horn (section)

==Applications==
For [[satellite TV|satellite TV reception]] the feedhorn is mounted at the feed arm of the [[satellite dish]]. The feedhorn then connects via a short waveguide to the "[[low-noise block downconverter]]" (LNB), a small housing containing a part of the reception electronics (also called the "[[RF front end]]"). This LNB converts the high satellite microwave downlink frequencies to lower frequencies, so the TV signals can be more easily transmitted through [[coaxial cable]]s to receivers located anywhere inside a building. For DTH TV typically the LNB and the feedhorn are integrated into one unit called "low-noise block feedhorn" (LNBF), but separate feedhorns and LNBs are used for more specialized applications.

For [[satellite uplink]] (e.g. for transmission of "Direct-To-Home" DTH TV programs, [[satellite news gathering]] SNG, [[satellite internet access]] or [[Very-small-aperture terminal|VSAT]] applications) a [[block upconverter]] (BUC) connects via a waveguide to the feedhorn, in order to transmit via the satellite dish to the [[communications satellite]].

Feedhorns are also used in applications like [[radar]], [[line-of-sight propagation|line-of-sight]] [[microwave transmission]] or [[radio astronomy]].