Low-noise block downconverter
A low-noise block downconverter (LNB) is the receiving device mounted on satellite dishes used for satellite TV reception, which collects the radio waves from the dish and converts them to a signal which is sent through a cable to the receiver inside the building. Also called a low-noise block, low-noise converter (LNC), or even low-noise downconverter (LND), the device is sometimes inaccurately called a low-noise amplifier (LNA).
A disassembled LNB. A waveguide carrying the microwave signal ends at the hole in the center, where for this LNB two pins act as antennas (for two different polarizations). Here the microwave signal is coupled into microstrips on the LNB's circuit board, in order for the RF signal to be amplified and downconverted into lower frequencies, which are output at the two F connector sockets at the bottom.
Cross-section across a low-noise block downconverter.
Viewing of the pin and the horn antenna in a low-noise block downconverter.
Ku-band linear-polarized LNBF
A satellite dish is a dish-shaped type of parabolic antenna designed to receive or transmit information by radio waves to or from a communication satellite. The term most commonly means a dish which receives direct-broadcast satellite television from a direct broadcast satellite in geostationary orbit.
Sat finder
Special dish for up to 16 satellite positions (Ku-band)
General Electric satellite dish for DirecTV satellite television.
Sky "minidish".