Glossary of terms

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This is a table of commonly used three-letter acronyms (TLA),used by the ATV community.

Term / TLA Definition comment Link
QPSK Quadrature Phase Shift Keying Commonly used digital modulation
Bit rate Number of bits per second of data - used in DATV to describe the video and audio bit rate before modulation
Symbol rate Used in DATV to describe the actual modulation rate after FEC
STB Set top box Typical stand alone satellite receiver designed for consumer use
FTA Free To Air Describes a consumer set top box which is capable of receiving non encrypted signals - as opposed to a Sky STB which is not capable of receiving UK DATV signals