Prosigns & Abbreviations

BT — Morse Prosign

Break/pause separator between sections of a message. Equivalent to a new paragraph.

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Frequently Asked Questions

What does the BT prosign mean?

Break/pause separator between sections of a message. Equivalent to a new paragraph.

What is the Morse code for BT?

The Morse code for BT is: -...-. Prosigns are sent as a single unbroken sequence, without the normal letter gaps.

When do you use BT in Morse code communication?

BT is a procedural signal (prosign) used to manage the flow of Morse code communication. Break/pause separator between sections of a message. Equivalent to a new paragraph.

Other Prosigns

SOS ...---...

International distress signal. Sent as a single unbroken sequence, not three separate letters.

CQ -.-. --.-

General call to all stations. Used to initiate contact with any available operator.

DE -.. .

"From" — identifies the sending station. Used as: CQ CQ DE [callsign].

AR .-.-.

End of transmission. Signals that the message is complete.

SK ...-.-

End of contact (Silent Key). Signals the end of a communication session.

KN -.--.

Invitation to a specific station only. "Go ahead, named station only."

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