Push to Talk Two Way Radio Communication Codes and Lingo Cheat Sheet

Now that you’ve invested in two-way radios from Peak PTT, it’s time to learn the language of the land, so to speak. Getting the language down can help you save time, waste fewer words, and keep your messages short, concise, and on point.

These are some of the codes you and your staff will want to know as you learn the two-way radio lingo.

PTT Radio Codes

While some consider the “10 codes” to be a thing of the past, they still hold relevance and are widely used today. These include common codes like:




10-1  Indicates you have a weak signal or are getting bad reception.


10-2 Indicates clear reception.


10-4 Means “yes” or “I got the message.” Conversely, the terms “roger” and “copy that” may be used to convey the same message among more modern users. 10-69 also means “message received.”


10-6 Lets others know you are busy at the moment or requests they stand by.


10-9 Lets people know they need to repeat the message.


10-13 Requests weather information or road conditions.


10-20 Request for your location or a report on your location.


10-24 Indicates the last assignment is completed and serves as a status report.
10-33 Reports emergency traffic at a location.


10-34 Indicates trouble at the station and serves as a request for help.


10-35 Indicates confidential information.


10-37 Requests a wrecker.


10-38 Requests an ambulance at the location.


10-42 Reports a traffic accident at a location.


10-43 Indicates traffic is backed up or stalled at a location.


10-69 Means “message received.”


10-70 Refers to a fire at a specific location.


10-73 Indicates a speed trap at a specific location.


10-77 Refers to the estimated arrival time.
10-200 Requests police at a specified location.


PTT Radio Lingo

In addition to various codes, you’ll find there are a few terms that seem unfamiliar when you first start using two-way radio communication. Some of the lingo below will take on new meaning as you become an old pro at push to talk communication.

PTT Radio Lingo It’s Meaning


Negative No
Copy That Indicates your message was understood.


Correction Refers to a mistake and provides updated or correct information.


20 or What’s Your 20? Is a request for your location or you providing your location.


Come In Request for the other party to acknowledge they heard you.


Go Ahead Indicates the other party is ready for your message
Say Again Requests you repeat your last message.


Over Indicates the end of your message


Out Indicates a conclusion to the conversation.
Radio Check Requests signal strength or whether you can hear the other party.


Read You Loud and Clear Indicates a good signal strength


On It Indicates you understand the request and have taken action.
Wilco Indicates you will comply.


Walkie Check When you first turn on your PTT radio, a responder will reply with “Good Check” to let you know your radio is working.
Standby Indicates you should wait for the other person to respond.
Wait Out Indicates a longer than anticipated wait and the other person will call when possible.


Break, Break Indicates an urgent interruption to transmission.


Emergency, emergency or “Mayday” Indicates a distress call and request for immediate assistance. Some radios are equipped with panic buttons that automate this.


Code Blue Refers to a non-critical incident.


Code Yellow Refers to incidents requiring immediate assistance but not dangerous at this time.


Code Red Refers to serious incidents requiring immediate attention or assistance.



Now that you know the lingo, you’re ready to begin using your new Peak PTT two-way radio for your business needs.

Did we miss any important PTT codes or lingo? Leave a comment below if we’ve missed any or let us know by calling us at 855-600-6161 or sending us an email at info@peakptt.com.

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