Radiotelephone Procedure & Prowords
How to actually talk on the radio: the basic exchange, prowords, phonetics, and numbers.
Self-paced · 0/0 required steps
The basic exchange
Every transmission follows the same shape: who you're calling, then who you are, then your message, then a proword telling the other station what to do. 'Net Control, this is Field Team One, radio check, over.' Say the receiving station first so they perk up before you identify yourself. End with OVER when you expect a reply, or OUT when you're finished and expect none. Never say 'over and out' — they contradict each other.
Prowords that do the work
Prowords are standard words that replace long phrases and remove ambiguity. Master these and you sound like a professional operator:
- OVER — I'm done, your turn / reply expected.
- OUT — I'm done, no reply expected.
- ROGER — I received your last transmission. (Not 'yes'.)
- WILCO — I received and WILl COmply.
- SAY AGAIN — repeat your transmission. (Never 'repeat'.)
- I SAY AGAIN — I am repeating for clarity.
- AFFIRMATIVE / NEGATIVE — yes / no.
- STANDBY (or WAIT) — pause, I'll be right back.
- CORRECTION — I made an error; the right version follows.
- BREAK — separates portions of a message, or signals urgent traffic.
- HOW COPY — did you receive me, and how well?
Phonetic alphabet and numbers
Spell anything that could be misheard using the NATO phonetic alphabet — call signs, grid letters, names. 'Bravo Tango Four Two', not 'B T forty-two'. Pronounce numbers as individual digits. Aviation and emergency-services practice often uses 'tree' for 3, 'fife' for 5, and 'niner' for 9 to avoid confusion. See the Reference tab for the full alphabet.
Plain language — the all-hazards rule
On a multi-agency incident, NIMS requires plain language, also called clear text. That means common everyday words, not agency-specific codes or '10-codes', because the fire crew, the sheriff, the hospital, and the volunteer communicators all have to understand each other instantly. 'Send an ambulance' beats 'request a 10-52' when nobody shares your codebook. Spell out what you mean. Avoid jargon, acronyms a partner agency won't know, and signals that only make sense inside one organization. All-hazards radio operator training drills this hard.
Delivery: slow down and be clear
Good radio voice is about rhythm and clarity, not volume. Speak slightly slower than normal conversation, in a steady pitch, with natural pauses between phrases so the receiving operator can copy. Think the message through before you key — dead air while you figure out what to say ties up the net.