List of amateur radio modes

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The following is a list of the modes of radio communication used in the amateur radio hobby.

Modes of communication[edit]

Amateurs use a variety of voice, text, image, and data communications modes over radio. Generally new modes can be tested in the amateur radio service, although national regulations may require disclosure of a new mode to permit radio licensing authorities to monitor the transmissions. Encryption, for example, is not generally permitted in the Amateur Radio service except for the special purpose of satellite vehicle control uplinks. The following is a partial list of the modes of communication used, where the mode includes both modulation types and operating protocols.

Analog voice[edit]

Digital voice[edit]

Digital voice modes encode speech into a data stream before transmitting it.

Morse code[edit]

Morse code is still used by amateurs. Operators may either key the code manually and decode by ear, or they may use computers to send and receive the code.


Image modes consist of sending either video or still images.

Text and data[edit]

Most amateur digital modes are transmitted by inserting audio into the microphone input of a radio and using an analog scheme, such as amplitude modulation (AM), frequency modulation (FM), or single-sideband modulation (SSB).

Other modes[edit]

Activities known as modes[edit]

Certain activities in amateur radio are also commonly referred to as "modes", even though no one specific modulation scheme is used.