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Radio Communication Protocol for Security Teams

8 min read· Updated 2026-07-07· Free · No signup

Radio discipline is the connective tissue of a security team. Sloppy comms cost seconds; in an incident, seconds cost outcomes.

Key takeaways

  • Callsign first, message second.
  • Repeat critical information back.
  • Priority calls override routine chatter.
  • Silence is a message too — 'radio check' every hour.

Standard call format

'Control, this is Post 3, over.' Wait for acknowledgement. Deliver message. Wait for confirmation. Sign off.

Phonetic alphabet — actually use it

NATO phonetic (Alpha, Bravo, Charlie…). Any callsign, any registration, any name that could be misheard uses it.

Incident priority

'Priority, priority, priority' or 'code red' (site policy) clears the net. All other traffic stops. Control acknowledges and coordinates.

Quick checklist

  • Callsigns memorised
  • NATO phonetic fluent
  • Priority signal for the site known
  • Radio check hourly

Common mistakes

  • Long rambling transmissions.
  • Skipping callsign and just talking.

Frequently asked questions

What's a 'strength check'?+

Signal-quality check: 'Post 3, radio check, over.' Response: 'Strength 5, over.'

Can I use a personal phone instead?+

Not in place of a radio for incident-critical comms. Phones for logistics, radio for operations.

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