What Is T in Morse Code?
The Morse code for T is -, a sequence of 0 dots and 1 dash. In international Morse code (the ITU standard), each letter has a unique combination of dots (·) and dashes (−). T is the shortest dash-only letter, matching its high frequency in English.
When you hear or read “morse code t”, “morse code for t”, “t morse code”, or “letter t in morse code”, the answer is always the same 1-signal pattern: -.
NATO Phonetic Word for T
In the NATO phonetic alphabet, the letter T is spoken as Tango. This pairing — Morse code - with the spoken word Tango — is used by aviation, military, and amateur radio operators worldwide for unmistakable communication.
History of Letter T in Morse Code
The letter T in Morse code is - — a single dash. It is, along with E (a single dot), one of the two most elemental patterns in the entire code: one signal, indivisible, impossible to miscount. T and E together form the root of the Morse code tree — every other letter branches from combinations that begin with or extend these two primitives.
The assignment of a single dash to T reflects deliberate design. T is the second most frequent letter in English text (after E), and the ITU International Morse Code standard — ratified in 1865 — consistently rewarded high-frequency letters with shorter codes. E received the shortest dot and T received the shortest dash, ensuring that the two most common letters in the language were also the two fastest to transmit. This frequency-based efficiency is Morse code's most elegant structural feature.
In early maritime telegraphy, T's single-dash simplicity made it a natural timing reference. Operators calibrated their speed by sending strings of T (- - - - -) to establish a clean, consistent dash length — a practice that survives today in CW training software that uses repeated T transmission to help learners find their natural sending rhythm.
Real-World Uses of T in Morse Code
T is the second most common letter in English, so it saturates all plain-language Morse traffic. Here are the most notable real-world scenarios where - is transmitted:
- THE, TO, THAT: The three most common English words all begin with T — each one opens with a single dash, making - the most frequent letter-opener in ordinary CW traffic
- RST reports: The "T" in RST stands for "tone" — operators send T9 for a perfect tone, transmitting - followed by ----. in every clean-signal report
- QTH (location): The second letter of QTH is T — --.- - .... — meaning every "my location is" exchange includes a solitary dash mid-sequence
- TNX (thanks): One of the most-sent CW abbreviations, TNX (- -. -..-) opens with a single T dash — a clean one-signal opener before the longer letters
- TU (thank you): The shortest common two-letter abbreviation in CW, TU (- ..-) is sent at the end of thousands of contacts daily
- Timing calibration: A string of T (- - - - -) is the standard keyer timing test — experienced operators listen for even, well-spaced dashes to verify their speed and weight settings
TU ("thank you", - ..-) and TNX
(- -. -..-) are sent at the close of nearly every amateur radio contact.
Because T opens both of these sign-off abbreviations with a single clean dash, the
pattern - will be among the very first reflexes any new CW operator develops — often
before they are even aware of learning it.
T Among the Morse Code Alphabet
Letter T (-) is one of just two single-signal letters in the entire alphabet — the other being E (.). Together they form the two-node root of the Morse decision tree. Compare T with its alphabetic and structural neighbours:
| Letter | Morse Code | Signals | Sound Pattern |
|---|---|---|---|
| A | .- | 2 | dit dah |
| B | -... | 4 | dah dit dit dit |
| C | -.-. | 4 | dah dit dah dit |
| D | -.. | 3 | dah dit dit |
| E | . | 1 | dit |
| F | ..-. | 4 | dit dit dah dit |
| G | --. | 3 | dah dah dit |
| H | .... | 4 | dit dit dit dit |
| I | .. | 2 | dit dit |
| J | .--- | 4 | dit dah dah dah |
| K | -.- | 3 | dah dit dah |
| L | .-.. | 4 | dit dah dit dit |
| M | -- | 2 | dah dah |
| N | -. | 2 | dah dit |
| O | --- | 3 | dah dah dah |
| P | .--. | 4 | dit dah dah dit |
| Q | --.- | 4 | dah dah dit dah |
| R | .-. | 3 | dit dah dit |
| S | ... | 3 | dit dit dit |
| T | - | 1 | dah |
| U | ..- | 3 | dit dit dah |
| V | ...- | 4 | dit dit dit dah |
| W | .-- | 3 | dit dah dah |
| X | -..- | 4 | dah dit dit dah |
| Y | -.-- | 4 | dah dit dah dah |
| Z | --.. | 4 | dah dah dit dit |
T (-) and E (.) are the two roots of the Morse binary tree: every other letter is simply T or E with more signals appended. Learning T and E first is not just good pedagogy — it is understanding the architecture of the entire code. N (-.) is T plus a dot; M (--) is T plus a dash; every longer letter traces back to one of these two primitives.
Practice Phrases Containing the Letter T
Drill - in context, ensuring each single dash is clean, well-weighted, and clearly distinct from multi-dash sequences. Work through these phrases:
| Phrase | Morse Code |
|---|---|
| T | - |
| TT | - - |
| TU (thank you) | - ..- |
| TNX (thanks) | - -. -..- |
| RST (signal report) | .-. ... - |
| QTH (location) | --.- - .... |
| THE | - .... . |
Make TU (- ..-) your primary two-character drill.
It is sent at the end of nearly every CW contact, it pairs T's single solitary dash
against U's two dots and a dash, and after even a modest number of on-air exchanges
it will be the most automatic two-letter sequence in your hands — not from practice,
but from use.
Tips for Memorising Letter T in Morse Code
One dash — T is the simplest letter in the code to describe and one of the hardest to confuse. Here are four techniques to make - completely automatic:
- There is almost nothing to memorise: A single dash is the shortest possible non-dot signal. If you hear one long tone and nothing else, that is T. The only potential confusion is with M (--) and O (---), both of which require two or more dashes. Knowing T is knowing that one dash — and only one — means T.
- Say it aloud: Chant "daaah" — one long, steady beat. Practice sending strings of T (- - - - -) at a comfortable speed, listening for even spacing and consistent dash length. This is the same calibration drill professional telegraphers used, and it builds both T recognition and clean keying technique simultaneously.
- Pair it with E (.): E and T are each other's mirror — one is the shortest dot, the other the shortest dash. Alternate E and T: . - . - . -. At slow speed this is a direct ear-training exercise for the fundamental dot/dash distinction that underpins all of Morse code. If you can cleanly distinguish E from T, you have the perceptual foundation the entire code rests on.
- Use TU as your anchor: Close every practice QSO with TU (- ..-). It is courteous, it is correct operating practice, and it sends T at the start of every single exchange closure. After a few sessions, your hand will send - before your brain has finished thinking "T" — which is exactly the level of automaticity good CW operation requires.
Practice: What Is the Morse Code for T?
Select the correct Morse code for T:
How to Tap Letter T in Morse Code
To transmit Letter T (-), use this sequence:
ITU Timing Rules
- Dot (·) = 1 unit
- Dash (−) = 3 units (3× longer)
- Signal gap = 1 unit
- Letter gap = 3 units
- Word gap = 7 units
Timing Reference Table
| Speed | Dot | Dash | Letter gap | Word gap |
|---|---|---|---|---|
| 5 wpm | 240ms | 720ms | 720ms | 1680ms |
| 10 wpm | 120ms | 360ms | 360ms | 840ms |
| 17 wpm (this page) | 70ms | 210ms | 210ms | 490ms |
| 20 wpm | 60ms | 180ms | 180ms | 420ms |
How to Remember Letter T in Morse Code
T is a single dash — one long tone.
NATO phonetic word: Tango — pair the spoken word with the rhythm to remember faster.
Frequently Asked Questions — Letter T in Morse Code
T in Morse code is -. The letter T uses 0 dots and 1 dash, the standard ITU pattern.
The Morse code for T is -. Tap the 1 signal in sequence with a one-unit gap between each.
To send letter T: long press. The NATO phonetic name for T is Tango.
- means the letter T in international Morse code (the ITU standard used worldwide for amateur radio and communication).
The NATO phonetic alphabet word for T is Tango. It pairs with the Morse code - for clear voice and signal communication.
Related Morse Code Letters
Other letters often learned alongside T: