amplifier electronic equipment that increases strength of signals passing through it
clock radio a radio that includes a clock that can be set to turn it on automatically
crystal set an early radio receiver using a crystal detector
detector any device that receives a signal or stimulus (as heat or pressure or light or motion etc.) and responds to it in a distinctive manner
demodulator,
detector any device that receives a signal or stimulus (as heat or pressure or light or motion etc.) and responds to it in a distinctive manner
wireless -
Of or relating to communication without a wired connection, such as by radio waves.
Wikipedia
s, wireless communication is the transfer of information without the use of wires. The distances involved may be short (a few meters as in television remote control) or long (thousands or millions of kilometers for radio communications). The term is often shortened to "wireless".
OmegaWiki Dictionary
Ω
wireless Not having any wires.
wireless (For an electric device) Having no cord, usually using batteries as a source of power.