Glossary of terms

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This is a table of commonly used phrases by the ATV community.

Term / TLA Definition comment Link
QPSK Quadrature Phase Shift Keying Commonly used digital modulation https://en.wikipedia.org/wiki/Phase-shift_keying
Bit rate Number of bits per second of data - used in DATV to describe the video and audio bit rate before modulation https://en.wikipedia.org/wiki/Bit_rate
Symbol rate Used in DATV to describe the actual modulation rate after FEC https://en.wikipedia.org/wiki/Symbol_rate
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