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carrier
Last modified: Wednesday, February 19, 2003
Short for
carrier signal, carrier system,
or
carrier service provider:
carrier signal
: A frequency in a
communications channel
modulated to carry
analog
or
digital
signal information. For example, an FM radio transmitter modulates the frequency of a carrier signal and the receiver processes the carrier signal to extract the analog information. An AM radio transmitter modulates the amplitude of a carrier signal.
carrier system
: A communications
system
providing a number of point-to-point channels through some type of
multiplexing
.
T-1
and
T-3 carrier
services are examples of carrier systems that can be used between points in a
Wide Area Network (WAN)
.
carrier service provider
: A company offering telephone and data communications between points in a state or in one or more countries. The
Regional Bell Operating Companies (RBOCs)
are example of carriers.
Related Categories
Communications
Networks
Related Terms
demultiplex
FDM
FSK
multiplex
PSK
SCPC
T-1 carrier
T-3 carrier
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