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1-20 of 20 possibilities

modem that converts electrical signals to telephone tones and back again acoustic modem
electrical device that sends or receives radio or television signals aerial , antenna , transmitting aerial
device that signals the occurrence of some undesirable event alarm , alarm system , warning device
electronic equipment that increases strength of signals passing through it amplifier
device for converting analogue signals into digital signals analog-digital converter , analog-to-digital converter , digitiser , digitizer
extraneous signals that can be confused with the phenomenon to be observed or measured background , background signal
(nautical) each of the eight half-hour units of nautical time signaled by strokes of a ship's bell; eight bells signals 4:00, 8:00, or 12:00 o'clock, either a.m. or p.m. bell , ship's bell
electronic device that receives television signals and displays them on a screen boob tube , goggle box , idiot box , television , television receiver , television set , telly , tv , tv set
red light on the rear of a motor vehicle that signals when the brakes are applied to slow or stop brake light , stoplight
conductor for transmitting electrical or optical signals or electric power cable , line , transmission line
radio-frequency transmitter that sends and receives spoken signals CB radio
path over which electrical signals can pass channel , transmission channel
unwanted echoes that interfere with the observation of signals on a radar screen clutter
transmission line for high-frequency signals coax , coax cable , coaxial cable
one of an international code of flag signals used between ships code flag , nautical signal flag
system of signals used to represent letters or numbers in transmitting messages coding system
artificial satellite that relays signals back to earth; moves in a geostationary orbit communications satellite
device that displays signals on a computer screen computer monitor
allergy that signals discontinuation of a medicine or treatment contraindication
longer of the two telegraphic signals used in Morse code dah , dash
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