What Is the BT Prosign in Morse Code?
BT is the prosign for a new paragraph or separator. Sent as B (−···) and T (−) run-together, it is identical to the equals sign (=) in Morse code.
When you search for “bt prosign in morse code”, “morse code for bt prosign”, or “BT in morse code”, the answer is the same ITU-standard pattern: -...-. Other common names for this prosign include new paragraph, separator, equals sign substitute, double dash.
When to Use the BT Prosign
Use BT to separate sections of a long message — between the address and body, between body paragraphs, or anywhere a written message would have a paragraph break.
Practice: What Is the Morse Code for the BT Prosign?
Select the correct Morse code for the bt prosign (BT):
How to Tap the BT Prosign in Morse Code
To transmit the bt 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 BT Prosign in Morse Code
“Big Tap” — Three short dots sandwiched between two long dashes: −···−. Picture a fence with two posts and three rails.
Frequently Asked Questions — BT Prosign in Morse Code
The bt prosign (BT) in Morse code is -...- (3 dots, 2 dashes). It’s the standard ITU code used worldwide.
The Morse code for the bt prosign is -...-. Tap the sequence as: dash, dot, dot, dot, dash, with a one-unit gap between each signal.
To send the bt prosign: long press, then short tap, then short tap, then short tap, then long press. Keep one unit of silence between each signal and three units between this character and the next.
The bt prosign uses 5 signals total: 3 dots and 2 dashes.
Use BT to separate sections of a long message — between the address and body, between body paragraphs, or anywhere a written message would have a paragraph break.
Yes — -...- is defined by the ITU (International Telecommunication Union) Recommendation M.1677 and is used worldwide for the bt prosign.
Related Morse Code Prosigns
Other prosigns commonly used alongside the bt prosign: