About Morse Alphabet
Morse Alphabet is a reference and primer for Morse code, kept by one independent author. Every sign is drawn to scale in time, and you can hear each one. The tables follow the international standard, ITU-R M.1677-1, and every table names its sources and the day it was last checked.
§ 1What this is
A folio: a small book of plates. The home page holds the alphabet, each letter has a page of its own, and the practice room trains your ear. Tap J and you hear it, di-dah-dah-dah, at the speed you choose.
Use it to learn a sign by its sound, to check one you are not sure of, or to print the alphabet for a class. Each page answers one question first and then shows you the sign.
§ 2Who keeps it
An independent author writes, checks and sets every page. No company, club or sponsor stands behind the site, and no one pays for a place on it.
Questions and corrections go to one address: contact@morsealphabet.net
§ 3The standard
The tables follow Recommendation ITU-R M.1677-1, International Morse code. It defines the signs and their timing: a dot is one unit, a dash three; the gap inside a sign is one unit, between letters three, between words seven.1
Some signs are in wide use but in no standard, such as Ä or the amateur prosign KN. Where they appear, the page marks them non-standard.
§ 4How the tables are checked
Each table is compared by hand with its sources, and the date of that check is printed at the foot of the page. A national alphabet follows its own rules, for example the Japanese Wabun table follows the radio regulations of Japan.
§ 5Report a mistake
If a sign, a sound or a fact looks wrong to you, write and say so. Name the page and what you expected to find, for example: “/letters/q, the mnemonic does not match the rhythm.”