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GLOS SA RY
kbps
kHz
LAN
LCD
LED
LNB
MCR
MDU
MF
MHz
Mix-minus
Mono
MP3
MPEG
MSF
Musicam
MUX
Pan
PFL
PI Code
PPM
Promo
PS Name
(RDS)
PSU
PTY
56
Kilo-bits per second - the number of 1s or 0s transmitted or transferred in
one second.
Kilo Hertz (samples per second).
Local Area Network - scheme where several computers on the same
premises are connected together so that they can exchange data.
Liquid Crystal Display (grey displays e.g. on calculators).
Light Emitting Diode (small lights e.g. on computers).
Low Noise Block - the RF amplifier attached to a satellite dish.
See racks room.
Mains Distribution Unit - a panel of mains outlets for power distribution.
Medium Frequency - another name for Medium Wave - roughly
frequencies between 300kHz and 3MHz.
Mega-hertz - One million cycles per second.
A mix-minus is similar to a cleanfeed except that the caller's voice is
removed from the signal electronically. Due to phasing problems at the
signal band edges, the mix-minus method often produces a lower
grade signal.
Monophonic sound (system of broadcasting, recording or reproducing
sound) using only one channel between source and loudspeaker.
MPEG 1 Layer 3 - see MPEG.
(ISO MPEG) Motion Picture Experts Group. For audio, this is used to refer
to a framing format standard. There are several layers and variants. Most
common ones are listed below.
MPEG 1 Layer 1 Used for Digital Compact Cassette.
MPEG 1 Layer 2 (Musicam) used in digital radio, digital terrestrial
television, ISDN and many hard-disk storage systems.
MPEG 1 Layer 3 Known as MP3. A more elaborate version of
MPEG 1 Layer 2 that allows for audio storage using low bit-rates.
This is radio code signal sourced from Rugby in England, which can be
used to automatically synchronize the Sentinel+ audio logger and PC
time to an accurate atomic clock, UK Time.
Masking Pattern Universal Sub-Band Encoding.
Short for Multiplex - a 'package' of digital radio services.
This controls the levels sent to the left and right outputs and is an
abbreviation of 'panorama' .
(Pre Fade Listen, or Cue). This is a method of auditioning audio material
independently of the programme output, without routing the signal
to air. The PFL button on each channel routes the signal to the PFL bus,
where it can be monitored.
(RDS) Programme Information Code used to identify an FM RDS station.
Peak Performance Meter (BBC Specification).
Something used to promote a product.
Programme Service Name - 8 characters used for naming an
FM RDS station.
Power Supply Unit.
(RDS and DAB) Programme Type. A code transmitted to describe the
overall programme content of a radio station (Static PTY) and/or the
moment by moment content (Dynamic PTY). RDS has 32 codes although
3 are used in special circumstances only.
Redbox User Handbook No 2
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