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DMS-MTX DualMode Metrocell Cell Site Description
List of terms
A-Band
The lower 333 channels (Channel 1 - 333) of the cellular band, normally assigned
to a non-wireline operator in the US and Canada.
The Expanded Spectrum provides 83 more channels, 50 (Channel 667 - 716) in
the A’-Band and 33 (channel 991 - 1023) in the A"-Band.
ACU
Alarm Control Unit. A unit that provides discrete alarm monitoring, reporting and
control functions at the cell site. It concentrates all alarm input points at the cell
site and updates the MTX of any status change over redundant data links.
AMPS
Advanced Mobile Phone Service. Analog cellular phone service.
ATC
AutoTune Combiner. A cavity/isolator combiner featuring an automatic tuning
system which monitors the transmitted RF and automatically tunes itself to that
frequency.
B-Band
The upper 333 channels (Channel 334 - 666) of the cellular band, normally
assigned to a wireline operator in the US and Canada.
The Expanded Spectrum provides 83 more channels (Channel 717 - 799) in the
B’-Band.
BER
Bit Error Rate. The ratio of error bits to the total number of transmitted bits. It is
a measurement of quality of the digital connection.
Carrier (RF)
An unmodulated radio signal. Normally, it is a pure sine wave of steady
frequency, amplitude, and phase.
CCH
Control Channel, sometimes referred to as the Signaling Channel which is always
in use to enable call setup and registration.