The process of converting a message into a code. This keeps the message private to anyone who does not have the key to the code.

A signal that uses binary code (1s and 0s). It provides a constant and consistent signal.

A signal that is a continuous wave, varying in strength or frequency (includes the human voice and FM radio).

The original sender of the message, which could be a person or a machine

An electronic device that produces radio waves - or the device that sends the message.

Device that captures radio signals to convert signals into a usable or readable form

A device, circuit, software program, or person that converts information from the source into another format to prepare for transmission.

A device that converts signal into sound, pictures, or readable text for the receiver.

Transmits communication signals over hair-thin strands of glass or plastic

Type of electromagnetic radiation, not visible to the human eye, that is used for communication technologies, such as television, mobile phones and radios.

The range of wavelengths or frequencies over which electromagnetic radiation extends. Includes radio waves, microwaves, visible light, etc.

Which term is NOT part of the sending of a message in the communications process?

Which term is NOT part of the receiving of a message in the communications process?