What Is the SN Prosign in Morse Code?
SN (also written VE) is the prosign for understood. The letters S and N are sent run-together as one 5-signal symbol.
When you search for “sn prosign in morse code”, “morse code for sn prosign”, or “SN in morse code”, the answer is the same ITU-standard pattern: ...-.. Other common names for this prosign include VE, understood, message received.
When to Use the SN Prosign
Send SN to acknowledge that you have copied a message correctly — equivalent to “roger” in voice operating. Common in formal traffic handling and ARRL net protocols.
Practice: What Is the Morse Code for the SN Prosign?
Select the correct Morse code for the sn prosign (SN):
How to Tap the SN Prosign in Morse Code
To transmit the sn prosign (...-.), use this sequence:
ITU Timing Rules
- Dot (·) = 1 unit
- Dash (−) = 3 units (3× longer)
- Signal gap = 1 unit
- Letter gap = 3 units
- Word gap = 7 units
Timing Reference Table
| Speed | Dot | Dash | Letter gap | Word gap |
|---|---|---|---|---|
| 5 wpm | 240ms | 720ms | 720ms | 1680ms |
| 10 wpm | 120ms | 360ms | 360ms | 840ms |
| 17 wpm (this page) | 70ms | 210ms | 210ms | 490ms |
| 20 wpm | 60ms | 180ms | 180ms | 420ms |
How to Remember the SN Prosign in Morse Code
“Sure thing, Now” — three dots then dash-dot: a brisk ‘got it’ confirmation.
Frequently Asked Questions — SN Prosign in Morse Code
The sn prosign (SN) in Morse code is ...-. (4 dots, 1 dash). It’s the standard ITU code used worldwide.
The Morse code for the sn prosign is ...-.. Tap the sequence as: dot, dot, dot, dash, dot, with a one-unit gap between each signal.
To send the sn prosign: short tap, then short tap, then short tap, then long press, then short tap. Keep one unit of silence between each signal and three units between this character and the next.
The sn prosign uses 5 signals total: 4 dots and 1 dash.
Send SN to acknowledge that you have copied a message correctly — equivalent to “roger” in voice operating. Common in formal traffic handling and ARRL net protocols.
Yes — ...-. is defined by the ITU (International Telecommunication Union) Recommendation M.1677 and is used worldwide for the sn prosign.
Related Morse Code Prosigns
Other prosigns commonly used alongside the sn prosign: