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The NATO phonetic alphabet (formally the International Radiotelephony Spelling Alphabet) is used in amateur radio to spell out callsigns, names, locations, and any other information that might be misheard. Each letter is represented by a standardized word chosen for its clarity and distinctness over radio.
Using phonetics is essential in amateur radio because letters that sound similar (B/D/E/G/P/T/V) are easily confused over noisy radio channels.
| Letter | Phonetic word | Pronunciation guide |
|---|---|---|
| A | Alpha | AL-fah |
| B | Bravo | BRAH-voh |
| C | Charlie | CHAR-lee |
| D | Delta | DELL-tah |
| E | Echo | ECK-oh |
| F | Foxtrot | FOKS-trot |
| G | Golf | GOLF |
| H | Hotel | hoh-TELL |
| I | India | IN-dee-ah |
| J | Juliet | JEW-lee-ett |
| K | Kilo | KEY-loh |
| L | Lima | LEE-mah |
| M | Mike | MIKE |
| N | November | no-VEM-ber |
| O | Oscar | OSS-cah |
| P | Papa | pah-PAH |
| Q | Quebec | keh-BECK |
| R | Romeo | ROH-mee-oh |
| S | Sierra | see-AIR-rah |
| T | Tango | TANG-go |
| U | Uniform | YOU-nee-form |
| V | Victor | VIK-tah |
| W | Whiskey | WISS-key |
| X | X-ray | ECKS-ray |
| Y | Yankee | YANG-key |
| Z | Zulu | ZOO-loo |
Numbers are generally spoken as individual digits. Some operators use the following pronunciations for extra clarity, particularly on HF where signals may be weak or noisy:
| Number | Spoken as |
|---|---|
| 0 | Zero (ZEE-roh) |
| 1 | One (WUN) |
| 2 | Two (TOO) |
| 3 | Three (TREE) |
| 4 | Four (FOW-er) |
| 5 | Five (FIFE) |
| 6 | Six (SIX) |
| 7 | Seven (SEV-en) |
| 8 | Eight (AIT) |
| 9 | Nine (NIN-er) |
The distinctive pronunciations for 3 ("tree"), 4 ("fow-er"), 5 ("fife"), and 9 ("niner") come from the international standard and help distinguish these numbers from similar-sounding words or each other.
The callsign W6ABC would be spoken as:
"Whiskey Six Alpha Bravo Charlie"
The callsign G0TNX would be spoken as:
"Golf Zero Tango November X-ray"
The callsign VK3RWB would be spoken as:
"Victor Kilo Three Romeo Whiskey Bravo"
If your name is Paul, you might say:
"My name is Paul — Papa Alpha Uniform Lima"
If you're in Oslo, you might say:
"My QTH is Oslo — Oscar Sierra Lima Oscar"
You should use the phonetic alphabet:
You don't need to spell out every single word phonetically in casual conversation. Use your judgement based on signal quality and context.
While the NATO alphabet is the international standard and recommended for amateur radio, you may occasionally hear operators use alternative words, especially in casual domestic contacts. For example, some US operators might say "America" instead of "Alpha" or "Washington" instead of "Whiskey."
This is generally discouraged, especially in international communication, because non-standard words may not be understood by operators whose first language isn't English. Stick to the NATO standard for clarity.