baseband
/ˈbeɪsbænd/Definitions
1. noun
A method of transmitting digital data over a communication channel, typically at a lower frequency than the frequency used for the carrier signal.
“The satellite uplink used a baseband signal to transmit data to the receiver on Earth.”
2. noun
A digital signal that is not modulated onto a carrier wave but is transmitted directly, usually for digital data transmission.
“The baseband signal from the modem was decoded by the computer to retrieve the data.”
3. noun
A device or system that generates or processes baseband signals.
“The baseband processor was used to decode the digital signal before it was converted to an analog signal.”