Editing Low-noise block downconverter (section)

=== Dual, twin, quad, and octo LNBs ===
[[Image:twin universal flange lnb.jpg|thumb|120px|A twin-output universal LNB with a C120 flange fitting for a separate feedhorn]]
An LNB with a single feedhorn but multiple outputs for connection to multiple tuners (in separate receivers or within the same receiver in the case of a twin-tuner PVR receiver). Typically, two, four or eight outputs are provided. Each output responds to the tuner's band and polarization selection signals independently of the other outputs and appears to the tuner to be a separate LNB. Such an LNB usually may derive its power from a receiver connected to any of the outputs. Unused outputs may be left unconnected (but waterproofed for the protection of the whole LNB).

Note: In the US an LNB with two outputs is termed a ''dual LNB'', but in the UK the term ''dual LNB'' historically described an LNB with two outputs, each producing only one polarisation, for connection to a multiswitch (the term and the LNBs fell out of use with the introduction of the universal LNB and the multiswitch equivalent, the quattro LNB – see below). Today ''dual LNB'' (and ''dual feed'') describes antennas for reception from two satellite positions, using either two separate LNBs or a single monoblock LNB with two feedhorns. In the UK, the term ''twin-output LNB'', or simply ''twin LNB'', is usually used for an LNB with a single feedhorn but two independent outputs.<ref name="WS article"/>