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Morse Alphabet

The Letter A in Morse Code

A is ·−: one short di and one long dah, di-dah. It lasts 5 units.

·−di-dah
A drawn to time: 5 units, then a 3-unit gap before the next letter.
Speed

Facts 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.