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Radiotelephone Procedure & Prowords

How to actually talk on the radio: the basic exchange, prowords, phonetics, and numbers.

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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.

Remember
TO — this is — FROM — message — OVER/OUT.

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?
Remember
ROGER means 'received', WILCO means 'will comply' — never use both together.
Practice goal
Practice sending an informal tactical message using correct procedure.

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.

Remember
Plain language always on shared incidents. No 10-codes, no inside jargon — say it in common words.

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.

Remember
Think, key, pause, speak. Pace beats power.