transmitter

American  

[trans-mit-er, tranz-] / trænsˈmɪt ər, trænz- /

noun

1. a person or thing that transmits.

2. Also called transmitting set.  Radio. a device for sending electromagnetic waves; the part of a broadcasting apparatus that generates and modulates the radiofrequency current and conveys it to the antenna.

3. the part of a telephonic or telegraphic apparatus that converts sound waves or mechanical movements into corresponding electric waves or impulses.

4. Biochemistry. neurotransmitter.

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transmitter British  

/ trænzˈmɪtə /

noun

1. a person or thing that transmits

2. the equipment used for generating and amplifying a radio-frequency carrier, modulating the carrier with information, and feeding it to an aerial for transmission

3. the microphone in a telephone that converts sound waves into audio-frequency electrical signals

4. a device that converts mechanical movements into coded electrical signals transmitted along a telegraph circuit

5. physiol short for neurotransmitter

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transmitter Scientific  

/ trăns′mĭt-ər /

1. A device that converts sound, light, or electrical signals into radio, microwave, or other electrical signals of sufficient strength for the purpose of telecommunication.

2. Compare receiver

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Etymology

Origin of transmitter

First recorded in 1720–30; transmit + -er ¹

Example Sentences

Jamming of foreign broadcasts was pioneered by Nazi Germany during World War Two, using noise or signals from more powerful transmitters located closer to the listeners.

From BBC

But Iran said in 2016 it was reviving the technology, which requires a network of large ground-based transmitters, though experts have not confirmed it is active today.

From Barron's

Declining to specify where the transmitter is located, she said it is "closer to the Netherlands than to Iran" -- although Tehran "can figure it out" if they choose.

From Barron's

All one needs is "another radio transmitter that can broadcast on the same frequency, but louder," she said, which creates "a wall of mush."

From Barron's

One critical factor that influences how well QKD works is pointing error, which occurs when the transmitter and receiver are not perfectly aligned.

From Science Daily