Definitions for "Narrowband"
A low-capacity communications circuit/path. It usually implies a speed of 56 Kbps or less.
A voice-grade transmission channel capable of transmitting a maximum of 34,000 bits per second. See bandwidth.
An imprecise term meaning to some people sub-voice grade channels capable of carrying only 100 to 200 bits per second, and to others meaning circuits able to carry up to 2400 bits per second.
Keywords:  narrowcasting
Generally, narrowband describes telecommunication that carries voice information in a narrow band of frequencies. More specifically, the term has been used to describe a specific frequency range set aside by the U.S. FCC for mobile or radio services, typically in the 400Mhz range. In the AIDC industry Narrow Band communications refer to Ultra High Frequency (UHF) RF.
A telecommunications medium that carries lower frequency signals; includes telephone frequencies of about 3,000 Hertz and radio subcarrier signals of about 15,000 Hertz.
single RF frequency.
Keywords:  baseband, see
See baseband.
Used to describe a connection over a computer network, which supports a relatively low bitrate. Also sometimes used to describe content optimised for such connections.
A service or connection allowing only a limited amount of information to be conveyed such as dial up internet access
A connection over a computer network, which supports a relatively low bit rate.
PDC Personal Digital Communications
In communications technology, digital communication at the rate of 64,000 bits per second or lower.
Services requiring up to 1.5 Mbps transport capacity.