What Is R in Morse Code?
The Morse code for R is .-., a sequence of 2 dots and 1 dash. In international Morse code (the ITU standard), each letter has a unique combination of dots (·) and dashes (−). R is symmetric: dot-dash-dot.
When you hear or read “morse code r”, “morse code for r”, “r morse code”, or “letter r in morse code”, the answer is always the same 3-signal pattern: .-..
NATO Phonetic Word for R
In the NATO phonetic alphabet, the letter R is spoken as Romeo. This pairing — Morse code .-. with the spoken word Romeo — is used by aviation, military, and amateur radio operators worldwide for unmistakable communication.
History of Letter R in Morse Code
The letter R in Morse code is .-. — a dot, a dash, then a dot. This three-signal pattern was established in the ITU International Morse Code standard of 1865 and has remained unchanged ever since. R is one of the most common letters in English — ranking fourth by frequency — which means .-. is transmitted more often than almost any other three-signal pattern in the code.
In telegraphy and radio procedure, R acquired a special role as the received/roger prosign. Sending a single R (.-.) to confirm that a message has been received in full is one of the oldest conventions in wireless communication — predating voice radio and carried forward into modern digital modes, aviation phraseology, and military communication as the word "roger."
The pattern .-. is sometimes called a "sandwich" by CW instructors — a dash surrounded by two dots. This memorable structural image makes R one of the easier three-signal letters to commit to memory, and its palindrome-like quality (it reads the same forwards and backwards) helps learners recognise it instantly even at high copy speeds.
Real-World Uses of R in Morse Code
Letter R is among the highest-frequency letters in English-language Morse traffic. Here are the most notable real-world scenarios where .-. is transmitted:
- Roger prosign: A single R (.-.) sent alone means "received OK" — one of the most transmitted single-letter signals in all of radio history
- RST reports: R appears in "readability" — the first digit of every RST signal report — and in abbreviations like "R5" meaning perfect readability
- QRP and QRZ: Both begin with Q but contain R as their second letter — .-. fires twice in every QRP and QRZ exchange
- Call signs: W-prefix US calls, VK (Australia), and ZL (New Zealand) frequently include R — .-. appears in a large proportion of DX call signs
- "UR 73" sign-off: The traditional "best regards" sign-off is often sent as UR 73 — "your 73" — putting .-. in one of the most-sent closing sequences in amateur radio
- RIG: "RIG" (.-. .. --.) is among the first equipment abbreviations new CW operators learn when exchanging station details
The prosign R ("roger") is arguably the most semantically important single letter in radio communication. Every confirmed exchange ends with it. For CW operators, .-. is so woven into the rhythm of a contact that it becomes reflexive within hours of first real on-air use — not memorised but absorbed.
R Among the Morse Code Alphabet
Letter R (.-.) uses three signals and sits in the mid-length tier alongside D, G, K, N, O, S, U, and W. Its palindrome structure (dot-dash-dot) is unique among three-signal letters. Compare R with its 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 |
R (.-.) and U (..-) are often confused by beginners: both open with a dot, but R inserts a dash between two dots while U ends with the dash. Drilling .-. and ..- alternately — "dot-DASH-dot" vs "dot-dot-DASH" — is one of the fastest ways to lock in both letters.
Practice Phrases Containing the Letter R
Drill .-. in context, hearing the dash sandwich between two crisp dots. Work through these phrases until the pattern is effortless:
| Phrase | Morse Code |
|---|---|
| R (roger) | .-. |
| RR | .-. .-. |
| RST (signal report) | .-. ... - |
| QRP (low power) | --.- .-. .--. |
| UR (your) | ..- .-. |
| RIG (radio setup) | .-. .. --. |
| ROGER | .-. --- --. . .-. |
Make RST (.-. ... -) your primary three-character drill.
Signal reports are exchanged in every CW contact, and RST frames three letters in a
single short burst — the contrast between R's symmetric shape, S's three rapid dots,
and T's single solitary dash trains three essential patterns at once.
Tips for Memorising Letter R in Morse Code
A dot, a dash, a dot — R sounds like a quick knock-pause-knock. Here are four techniques to make .-. completely automatic:
- The "dash sandwich" image: Picture a burger: top bun (dot), patty (dash), bottom bun (dot). The filling is bigger than the bread — a dash is three times longer than a dot. The image is simple, but once it is in your head you will never confuse .-. with anything else.
- Say it aloud: Chant "dit-daaah-dit" — two quick taps around one slow beat. The central dash is the stressed syllable. Tap it on the table: tap-hold-tap. After ten repetitions the physical rhythm encodes the pattern in muscle memory without any conscious effort.
- Contrast with U (..-) and K (-.-): U puts both dots first; K is the mirror of R with the dash on the outside; R puts the dash in the middle. Sending .-. ..- -.- in a loop trains all three patterns simultaneously and sharpens the ear for exactly where the single dash sits in each three-signal letter.
- Use R as the "roger" reflex: After every message you receive and understand, send a single R (.-.). This is good operating practice and a repetition drill disguised as courtesy. Within a single on-air session, .-. will be the most-sent pattern in your log.
Practice: What Is the Morse Code for R?
Select the correct Morse code for R:
How to Tap Letter R in Morse Code
To transmit Letter R (.-.), 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 R in Morse Code
R for "ro-TA-tion" — di-DAH-dit.
NATO phonetic word: Romeo — pair the spoken word with the rhythm to remember faster.
Frequently Asked Questions — Letter R in Morse Code
R in Morse code is .-.. The letter R uses 2 dots and 1 dash, the standard ITU pattern.
The Morse code for R is .-.. Tap the 3 signals in sequence with a one-unit gap between each.
To send letter R: short press, then long press, then short press. The NATO phonetic name for R is Romeo.
.-. means the letter R in international Morse code (the ITU standard used worldwide for amateur radio and communication).
The NATO phonetic alphabet word for R is Romeo. It pairs with the Morse code .-. for clear voice and signal communication.
Related Morse Code Letters
Other letters often learned alongside R: