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HH — Morse Prosign

Error / correction. Indicates a mistake — the previous word should be disregarded.

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What does the HH prosign mean?

Error / correction. Indicates a mistake — the previous word should be disregarded.

What is the Morse code for HH?

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

When do you use HH in Morse code communication?

HH is a procedural signal (prosign) used to manage the flow of Morse code communication. Error / correction. Indicates a mistake — the previous word should be disregarded.

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.

BT -...-

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

Explore all prosigns and the full Morse alphabet → อะคาเดมี