The Letter A in Morse Code
A is ·−: one short di and one long dah, di-dah. It lasts 5 units.
·−di-dahFacts about A
- Code
·−· di-dah- Elements
- 2 — one dot, one dash
- Length
- 5 units + 3 before the next letter
- Time
- 0.3 s at 20 WPM · 0.75 s at 8 WPM
- Tree
- E → A · below it: R, W
- Frequency
- 8.04% of English letters, 3rd of 262
- Koch order
- 8th sign of the course
- Spelling
- Alfa
- Same signal
- А in Russian Morse · Α in Greek Morse · イ in Wabun
§ 1Don’t confuse A with
- Athis letterdi-dah
- Eone element shorterdit
- Tone element shorterdah
- Ilast element differsdi-dit
- Mfirst element differsdah-dah
- Uone element longerdi-di-dah
- Rone element longerdi-dah-dit
- Wone element longerdi-dah-dah
- Kone element longerdah-di-dah
- Nmirror: every di and dah swappeddah-dit
Blue marks the elements that differ from A.
§ 2How to remember A
a-HEAD (·−) — A is N (−·) back to front, so notice which half comes first: A opens short.
§ 3Words with A
§ 4Questions about A
- How do you send A in Morse code?
- Press the key briefly, let go for the length of that dot, then hold it three times as long. The gap inside the letter is only one dot long, so A should sound like one short-long word, never like two separate letters.
- Is A the same as N in Morse code?
- No, N is A reversed: a dash first, then a dot (−·). New learners often swap them for a week or two; saying the rhythm aloud while you listen helps the ear fix the order.
- Which prosign starts with A?
- AR (·−·−·), the end-of-message signal, is A and R sent as one sign without a gap. The ITU table uses the same pattern for the plus sign, so you will hear the opening of A at the close of many messages.