transmitter

n. conveyer; broadcasting device

A transmitter (sometimes abbreviated XMTR) is an electronic device which with the aid of an antenna propagates an electromagnetic signal such as radio, television, or other telecommunications. A transmitter usually has a power supply, an oscillator, a modulator, and amplifiers for audio frequency (AF) and radio frequency (RF). The modulator is the device which piggybacks (or modulates) the signal information onto the carrier frequency, which is then broadcast. Sometimes a device (for example, a cell phone) contains both a transmitter and a radio receiver, with the combined unit referred to as a transceiver - see also Radio transmitter design.
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Noun
1. someone who transmits a message; "return to sender"
(synonym) sender
(hypernym) communicator
(hyponym) spammer
(derivation) transmit, transfer, transport, channel, channelize, channelise
2. any agent (person or animal or microorganism) that carries and transmits a disease; "mosquitos are vectors of malaria and yellow fever"; "fleas are vectors of the plague"; "aphids are transmitters of plant diseases"; "when medical scientists talk about vectors they are usually talking about insects"
(synonym) vector
(hypernym) agent
(hyponym) transducing vector, gene delivery vector
(derivation) convey, transmit, communicate
(classification) animal, animate being, beast, brute, creature, fauna
3. set used to broadcast radio or tv signals
(synonym) sender
(hypernym) set
(hyponym) jammer
(part-meronym) antenna, aerial, transmitting aerial
(derivation) air, send, broadcast, beam, transmit

(n.)
One who, or that which, transmits; specifically, that portion of a telegraphic or telephonic instrument by means of which a message is sent; -- opposed to receiver.
  

receiver