narrowband modem

narrowband modem: A modem whose modulated output signal has an essential frequency spectrum that is limited to that which can be wholly contained within, and faithfully transmitted through, a voice channel with a nominal 4-kHz bandwidth. (188) Note: High frequency (HF) modems are limited to operation over a voice channel with a nominal 3-kHz bandwidth.

This HTML version of FS-1037C was last generated on Fri Aug 23 00:22:38 MDT 1996