What Is W in Morse Code?
The Morse code for W is .--, a sequence of 1 dot and 2 dashes. In international Morse code (the ITU standard), each letter has a unique combination of dots (·) and dashes (−). W is the reverse of G (--.).
When you hear or read “morse code w”, “morse code for w”, “w morse code”, or “letter w in morse code”, the answer is always the same 3-signal pattern: .--.
NATO Phonetic Word for W
In the NATO phonetic alphabet, the letter W is spoken as Whiskey. This pairing — Morse code .-- with the spoken word Whiskey — is used by aviation, military, and amateur radio operators worldwide for unmistakable communication.
History of the Letter W in Morse Code
The letter W in Morse code is .-- — one dot followed by two dashes. This three-signal pattern was assigned to W based on the letter frequency principles that guided Samuel Morse and Alfred Vail when they developed the original code in the 1840s. W appears in roughly 2.4% of English text — moderately common, earning it a concise three-signal pattern.
The pattern .-- has a distinctive rising quality — one short tap launching into two long tones. Experienced operators describe it as sounding confident and assertive, which feels fitting given W's prominent role in amateur radio call signs across North America. The United States is one of the largest amateur radio nations in the world, and the W prefix is one of its primary identifiers — meaning .-- is transmitted millions of times every day.
The ITU confirmed W's pattern at the 1865 standardisation conference. W shares a mirror relationship with G (--.) — W starts with a dot then two dashes, while G starts with two dashes then a dot. Both are three-signal patterns, and together they cover two of the most recognisable call sign prefixes in the world: W for the United States and G for the United Kingdom.
Real-World Uses of W in Morse Code
The letter W is one of the most transmitted letters in amateur radio, primarily because of its dominant role in US call signs. Here are the most common real-world contexts where .-- is sent:
- US call signs: W is one of the primary US amateur radio prefixes — W1AW, W3BBO, W5ABC — making .-- one of the most sent three-signal patterns on the amateur bands
- WX abbreviation: "WX" (weather) is used constantly in CW contacts — operators routinely exchange weather information and .-- starts every weather report
- WPM: "WPM" (words per minute) is the standard unit of Morse speed — operators frequently exchange their speed as part of establishing a comfortable contact rate
- W1AW broadcasts: The ARRL's flagship station W1AW transmits regular Morse code practice sessions on shortwave — .-- is the very first character of every broadcast
- CW abbreviation: The word "CW" itself begins with C but the broader term "CW WPM" for speed discussions means W appears in almost every speed-related exchange
- WAZ / DXCC awards: "Worked All Zones" and similar award discussions on CW use W heavily in abbreviations and callsign exchanges
The ARRL's station W1AW in Newington, Connecticut, is arguably the most famous amateur radio station in the world. It transmits Morse code practice sessions at multiple speeds on a published schedule, making .-- literally the first sound new CW operators hear when they tune in to learn. For generations of American hams, W1AW's call sign has been their introduction to on-air Morse code reception.
Complete Morse Code Alphabet Chart (A–Z)
Morse letters use one to four signals. W (.--) is a three-signal letter — one dot and two dashes — making it one of the shorter letters in the alphabet. See the full A–Z chart and where W sits:
| Letter | Morse Code | Letter | Morse Code |
|---|---|---|---|
| A | .- | N | -. |
| B | -... | O | --- |
| C | -.-. | P | .--. |
| D | -.. | Q | --.- |
| E | . | R | .-. |
| F | ..-. | S | ... |
| G | --. | T | - |
| H | .... | U | ..- |
| I | .. | V | ...- |
| J | .--- | W | .-- |
| K | -.- | X | -..- |
| L | .-.. | Y | -.-- |
| M | -- | Z | --.. |
W (.--) and G (--.) are near-mirror images — W starts with a dot then two dashes, while G starts with two dashes then a dot. Both are three-signal patterns. Studying them as a pair is efficient because both represent major national call sign prefixes — W for the USA, G for the UK — giving each letter an immediate real-world hook.
Practice Words Containing the Letter W
Drill .-- inside real call signs and common operating abbreviations. Start with W1AW — the most famous call sign in North American amateur radio:
| Word / Phrase | Morse Code |
|---|---|
| W | .-- |
| WX (weather) | .-- -..- |
| WPM (words per minute) | .-- .--. -- |
| W1AW (ARRL station) | .-- .---- .- .-- |
| CQ CQ DE W5ABC | -.-. --.- -.-. --.- -.. . .-- ..... .- -... -.-. |
| WKD (worked) | .-- -.- -.. |
| VY 73 DE W3XYZ | ...- -.-- --... ...-- -.. . .-- ...-- -..- -.-- ---.. |
Practise W1AW (.-- .---- .- .--) as a single flowing unit. It contains W at both the start and the end, giving you two repetitions of .-- per drill cycle. After twenty repetitions of W1AW, the pattern will feel completely effortless in any real contact.
Tips for Memorising the Letter W in Morse Code
One dot then two dashes — W has a quick light opener that launches into two solid long tones. Here are four techniques to make .-- completely automatic:
- Sound word association: Chant "dit-daaah-daaah" and think "W is Wide." The two long dashes spread out broadly after the opening dot — wide, like the letter W itself with its two spread legs. The visual shape of the letter and the wide audio pattern reinforce each other memorably.
- Pair it with G: W (.--) and G (--.) are near-mirrors — same signals, different order. Drill .-- --. .-- --. in a loop. Both represent major national prefixes (US and UK), so you can practise by imagining a contact between an American and a British station — every exchange uses both letters.
- Use W1AW as your drill: Practise the call sign W1AW (.-- .---- .- .--) daily. It contains W twice, it is the most famous call sign in amateur radio, and hearing it on the air during W1AW's scheduled broadcasts gives you immediate real-world reinforcement.
- WX weather reports: Include WX (.-- -..-) in every practice contact. Exchanging weather information is a standard part of casual CW conversation, so .-- appears naturally in every simulated QSO you practise — building fluency through realistic context rather than repetitive isolated drills.
Practice: What Is the Morse Code for W?
Select the correct Morse code for W:
How to Tap Letter W in Morse Code
To transmit Letter W (.--), 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 W in Morse Code
W for "the-WORLD-WAR" — di-DAH-DAH.
NATO phonetic word: Whiskey — pair the spoken word with the rhythm to remember faster.
Frequently Asked Questions — Letter W in Morse Code
W in Morse code is .--. The letter W uses 1 dot and 2 dashes, the standard ITU pattern.
The Morse code for W is .--. Tap the 3 signals in sequence with a one-unit gap between each.
To send letter W: short press, then long press, then long press. The NATO phonetic name for W is Whiskey.
.-- means the letter W in international Morse code (the ITU standard used worldwide for amateur radio and communication).
The NATO phonetic alphabet word for W is Whiskey. It pairs with the Morse code .-- for clear voice and signal communication.
Related Morse Code Letters
Other letters often learned alongside W: