To receive satellite signals, you need an LNB (Low-Noise Block Downconverter). The LNB picks up all the signals coming to the satellite dish and filters out selected frequencies and amplifies the frequencies you need. It then sends the required frequencies down the cable to the satellite receiver.
DishTV KU Band LNB with 11300 L.O. frequency.
This LNB is more commonly used in Freeview installations.
It has a standard neck size of 40mm.