Total Access Communication System (TACS)

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Total Access Communication System
NoWaterfallFiller.png
Frequencies 872 MHz,960 MHz
Frequency Range 872 MHz - 960 MHz
Mode NFM
Modulation FM,FSK
ACF
Bandwidth 25 kHz
Location Europe
Short Description A first generation analogue mobile cellular system which operated in the United Kingdom and a handful of other countries in Europe.
I/Q Raw Recording
Audio Sample

The Total Access Communication System (TACS) was an analogue cellular voice communications system. It was introduced to the United Kingdom in 1982 before expanding to Europe, Hong Kong and a few countries in the Middle East.

Signalling (for connecting voice and data calls) was conducted using FSKFrequency-Shift Keying at a speed of 8 kbit/sKilobits per second (kbps).

Extended TACS (ETACS) was introduced to expand the allocated spectrum to increase the amount of available channels.

TACS and ETACS were discontinued in the UK in 2001, and cellular services have been replaced by GSM.

Frequencies[edit]

System Uplink (MHzMegaHertz (MHz) 10^6 Hz) Downlink (MHzMegaHertz (MHz) 10^6 Hz)
TACS 600 890 - 905 935 - 950
TACS 1000 890 - 915 935 - 960
ETACS 1320 872 - 905 917 - 950

All TACS and ETACS channels were spaced at 25 kHzKiloHertz (kHz) 10^3 Hz.

Additional Links[edit]