// PROSIGNS · 6 SIGNALS
Amateur radio prosigns.
A prosign (procedural signal) is a double Morse letter sent without internal gap — a single string marking a protocol function: end of message, stand-by request, error erase.
The six essential prosigns in CW. Every entry links to a dedicated page: Morse code, long meaning, real QSO examples.
Why no internal gap?
A prosign differs from a simple sequence of letters because it's sent without an inter-letter pause. SK is not "S then K" but ···−·− as one stream. This continuity tells the ear the sign has a protocol function (not a textual one), like message structure markers.