narrowband signal
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- Any analog signal or analog representation of a digital signal whose essential spectral content is limited to that which can be contained within a voice channel of nominal 4-kHz bandwidth. Note: Narrowband radio uses a voice channel with a nominal 3-kHz bandwidth.
ATIS - Cite This Source - This Definition - CDMA (Code-division multiple access access), code-division multiple access (CDMA), narrowband modem, narrowband radio voice frequency (NBRVF), quasi-analog signal, rf bandwidth, wideband, wideband modem