Input  Frequency of 11.7 to 12.75 GHz gives them extended use for those special applications.  US standard 10.750 GHz LO for ease of set up.  Super low noise of 0.2dB makes it the best available LNBF for the money.  Standard 40mm LNBF throat allows it to be mount to just about any dish.  If you are looking for the best possible LNBF at a low cost, Avenger LNBFs are for you.