Morse Code Number 7
Two dashes followed by three dots – ITU standard for digit 7 (— — · · ·). The rhythm: long, long, short, short, short.
🎧 Listen to Number 7
✔ Dash = 3 units, dot = 1 unit, gap between symbols = 1 unit. Pattern: dash + dash + dot + dot + dot.
✋ Tapper – practice sending 7
Correct sequence for 7: dash → dash → dot → dot → dot
📘 Tutorial: How to send and receive 7
Pattern breakdown
Number 7 = — — · · · (two dashes, three dots). In standard text format: --... (two hyphens, three periods).
Timing rules (standard Morse)
- Dash length = 3 units of time
- Dot length = 1 unit each
- Internal gap between symbols = 1 unit
- Total duration = (3+3) for dashes + (3×1) dots + 4 internal gaps = 13 units
Spoken mnemonic
“dah dah di di di” — two long “dah”s, then three short “di”s. Remember it like “DAH-DAH-diddy-dit”.
Mirror relationship with number 3
Number 3 is ...-- (three dots, two dashes). Number 7 is its exact reverse: --... (two dashes, three dots). This mirror symmetry across 0-9 aids memorization.
✍️ Practice quiz
Question: What is the correct Morse code for the number 7?
Use . for dot, - for dash. Accepts spaces. Correct format: --... (two dashes + three dots).