J in Morse Code
J in Morse code is .---: one short dot followed by three longer dashes. Copy the pattern, play the audio, or use the timing guide below to practice the di-dah-dah-dah rhythm.
Text
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Morse Code
J = dot dash dash dash = di-dah-dah-dah
How to Read J in Morse Code
The letter J has four signal elements in a fixed order: a dot, then three dashes. Read it as di-dah-dah-dah. The dot lasts one time unit, each dash lasts three units, and each gap inside the letter lasts one unit.
Keep the four signals together as one character. The dot opens the letter, and the three dashes carry the rest of the rhythm.
Dot
.
1 unit
di
Dash
-
3 units
dah
Dash
-
3 units
dah
Dash
-
3 units
dah
See the full Morse code alphabet for every letter, number, and symbol.
How to Send J with Sound, Tapping, or Light
The medium can change, but the pattern stays the same: one short signal followed by three long signals.
Sound
Play one short beep, then three beeps each three times as long. The result should sound like di-dah-dah-dah.
Tapping
Tap once quickly, then hold three longer taps for the dashes. Keep the gaps between signals shorter than the pause after the letter.
Light
Flash the light briefly, then hold it for three longer flashes. Give every dash the same full length.
A dot is one unit. A dash is three units. Each gap inside J is one unit. Learn the complete timing and spacing rules in the Learn Morse guide.
Learn J from E and O
E and O are the two halves of J. E is one dot, O is three dashes, and J puts them together in that order.
E
.
dit
One short signal
O
---
dah-dah-dah
Three long signals
J
.---
di-dah-dah-dah
E followed by O
Listen to E, O, and J as a group. The dot opens the letter, and the three dashes close it.
J vs W in Morse Code
J and W share the same opening dot, but W has two dashes and J has three.
J
.---
di-dah-dah-dah
Dot plus three dashes
W
.--
di-dah-dah
Dot plus two dashes
Play J and W back to back. The extra dash at the end is the whole difference, and it changes the letter completely.
Practice J in Short Words
Short words let you hear J next to dashes and other letters. Leave a clear gap between each character.
JET
.--- . -
didahdahdah / di / dah
JAM
.--- .- --
didahdahdah / didah / dahdah
JOY
.--- --- -.--
didahdahdah / dahdahdah / dahdidahdah
Spaces separate letters in typed Morse code. Use / only to mark a break between words.
Try J in Your Own Message
Type a word or short phrase that contains J to preview its Morse code. Open the full translator for playback controls and WAV download.
J in Morse Code FAQ
J in International Morse code is .---: one dot followed by three dashes.
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Use the full alphabet for quick lookups, learn the timing rules, or practice J in common words.
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Read GuideReady to translate your own message?
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