These usually have an antenna input and a diplexer, so that the antenna signal is also distributed along with the satellite. More modern installations confront several issues. There are often multiple satellite dishes that need to feed several receivers or even multichannel receivers. See, for example, single cable distribution. Diplexers were also used to combine UHF TV and VHF TV and FM signals onto one downlead, which can then be split back into its component parts as required. See also Power dividers and directional couplers Bias tee References External links Use of diplexers in domestic TV distribution. Broadcast engineering Radio electronics