Across
- 5. A device that sends out radio waves.
- 6. an instrument for converting sound waves into electrical energy variations, which may then be amplified, transmitted, or recorded.
- 8. Information processed or stored on a computer and transmitted in the form of electrical signals and recorded on magnetic, optical, or mechanical recording media.
- 9. The transmission and reception of electromagnetic waves of radio frequency, especially those carrying sound messages.
- 10. a unit used to measure the intensity of a sound or the power level of an electrical signal by comparing it with a given level on a logarithmic scale.
Down
- 1. An instrument that uses electronic circuits to produce sound.
- 2. the term for the height of a radio wave’s peak.
- 3. a device for merging input signals to produce a combined output in the form of sound or pictures.
- 4. An electromagnetic wave of a frequency between about 10⁴ and 10¹¹ or 10¹² Hz, as used for long-distance communication.
- 7. A piece of radio or television apparatus that detects broadcast signals and converts them into visible or audible form.