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Episode 15: Radio Communications Can Impact Situational Awareness

Episode 15: Radio Communications Can Impact Situational Awareness

On this episode….

  1. We’ll discuss how radio communications can impact situational awareness.
  2. I’ll share a near-miss incident where a firefighter fell through an open crawl space hatch in a floor due to lack of communications from a fellow firefighters.
  3. Finally, I will answer one of the most often asked questions I receive… what does it cost to host a Situational Awareness Matters Tour Stop Event?

Length: 18 minutes
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If you are interested in taking your understanding of situational awareness and high-risk decision making to a higher level, check out the Situational Awareness Matters Online Academy.
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A frequent contributing factor in firefighter casualty incidents is too much radio traffic. This can have a significant impact on first responder situational awareness because it becomes near impossible to take in, process, comprehend and remember the volumes of information being transmitted over the radio when communications is not disciplined. This article explores some of the causes of the problem and makes some recommendations for improving radio discipline.


Have radio, must talk


On numerous occasions I have had conversations with fire chiefs who said they regretted issuing a radio to every member. They said the concept was good – give everyone a radio in case they get into trouble they can call for assistance. However, the strategy backfires when everyone who has a radio feels compelled to talk on it. It is tantamount to a person thinking that because they are carrying an axe, they must chop something. A radio is a tool to be used for a specifically intended purpose. Unfortunately, most fire departments do not train firefighters on how and when to use a radio.


Radio training


It should not be assumed that a firefighter will automatically know how and when to talk on a radio. To assume so is to make a great leap of faith that will, undoubtedly, come back to bite the assumer in the behind. Talking on a radio is not an intuitive task. Knowing what to say, how to say it and when to say it are skills that must be taught.


Having listened to numerous audio recordings of incidents where firefighters were injured or killed, it is painfully evident this still has not been taught and, if it has been, the instructions were poor or the radio user has fallen out of practice with best practices.


Best practices


Radio transmissions can provide critical clues and cues that, when transmitted properly and timely can be a tremendous asset in the development and maintenance of situational awareness. Those demonstrating the best practices in radio usage know what to say, how to say it, who to say it to, and when to say it. And, perhaps of equal importance, they know what NOT to say, how NOT to say it, who NOT to say it to and when to stay off the air.


Prioritizing radio messages


I recently had a discussion with some firefighters about their radio discipline. After deciding their incident management is hampered from too much radio traffic, they have embarked on a mission to revamp how they use their radios. They have decided radio transmissions fall into one of three categories: Urgent, Necessary, and Unnecessary.


For Urgent messages, the transmission will start with the word Urgent followed by the message. The department is developing a list of examples of urgent messages and training personnel on why those messages would be considered urgent.


Necessary radio traffic will not have a pre-empted word and the department will provide members with a definition of necessary radio traffic and some examples.


Unnecessary radio traffic will be defined and a sample list will be provided to the members. Unnecessary radio traffic will no longer be transmitted over the radio. Instead, it will be stated face-to-face, by mobile data computer, or will not be communicated at all.


Cadence and key phrases


The department is also going to adopt a cadence protocol. Cadence is when the same thing is said on the radio in the same order (or sequence) every time. For example, when giving a progress or update report the crew employs the acronym C.A.N. (Conditions, Actions, Needs). Or, when calling a mayday, the department would give a L.U.N.A.R. report (Location in the building, Unit designation, Names of personnel needing assistance, Air supply remaining, and Resource needs).

The department is also going to adopt key phrases that will be used to communicate a broader concept. Personnel will be trained on what the key phrases mean so when communicated the meaning is shared among the sender and the receiver(s).




The fire department is going to conduct audits of recorded radio transmissions to ensure the new procedure is being followed. As with anything new, this procedure entails a paradigm shift for how the department uses radios. They should expect to show steady progress toward changing habits. It is important for the audits to be conducted on both significant alarms and non-significant alarms. The habits developed during the many non-significant alarms will become the automatic performance during significant alarms. Ensuring the new procedures are being used consistently across the board is important.




Radio communication is critical to the success of an incident and is vital to developing and maintaining situational awareness. Disciplined communications reduces the possibility of radio channel overload and it reduces the possibility of cognitive overload by those who are listening to the radio.


Reducing the amount of unnecessary radio traffic will also reduce the possibility that personnel operating at the scene (including the commander) will not tune out the radio because of the volume of chatter that is impacting the ability to comprehend other things. The brain only has a limited capacity to process information and under stress it is not that hard to overload the brain. Reducing radio traffic to urgent and necessary messages only is a best practice that will improve responder safety.



  1. Develop a definition and create a list of urgent, necessary and unnecessary radio transmission.


  1. Obtain an audio tape from a recent significant event in your department. Categorize the radio transmissions as urgent, necessary and unnecessary. Record the percentage of airtime from the incident dedicated to each.


  1. Discuss strategies for how to eliminate unnecessary radio transmissions.




This lesson comes to us from the Firefighter Near Miss Reporting System, where lessons learned become lessons applied.


Crawl Space Opening Not Identified

May 21, 2014


My company responded to a report of fire that was allegedly started by a torch from some plumbing work. The subfloor was involved and the homeowner reported to us that the fire was out. Two other firefighters and myself entered the home through the front door to confirm that there was no extension and that the fire was out.


The two firefighters opened a crawl space access panel located in the living room floor – which was located just inside the garage door – to check for extension. They left the access panel open, in case they had to make a quick egress. A third firefighter on the crew entered the house from the garage and was unaware that the crawl space access panel was open. The third firefighter stepped into the open hole and fell into the crawl space. The firefighter was not injured and was wearing full PPE.


The purpose of the SAMatters Radio show is to improve situational awareness and decision making for individuals and teams who work in high risk, high consequence environments.

The SAMatters mission is simple… To help you see the bad things coming… in time to avoid bad outcomes.


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