DirecTV Advanced Installation Meter User Manual page 87

A Glossary
multiswitch Device that splits up the satellite feed
without compromising quality to support
multiple IRDs.
ODU Out-Door Unit
Term used to collectively refer to the satellite
equipment, including the satellite dish, that
is placed outside a building.
orbital slots The location of geostationary satellites
around the globe.
signal power A measure of the strength of the radio
frequency signal being received from a
selected satellite transponder.
SWiM Single-Wire Multiswitch
Technology that allows distribution of
satellite signals on a single cable.
tilt Rotational adjustment to compensate for
the Earth's curvature between the ODU and
a satellite's signal beam.
transponder A receiver/transmitter on a satellite, which
receives a microwave signal from earth,
amplifies it, and retransmits it back to earth
at a different frequency. A satellite has
several transponders.
AIM User's Manual
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