History
A History of the 10-4 Call Sign in Radio Communication
The phrase “10-4” has become a widely recognized as a friendly way to say “affirmative” or “understood.”
Ten-4 Radios June 25, 2025
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The phrase “10-4” has become a widely recognized as a friendly way to say “affirmative” or “understood.”
Ten-4 Radios is a leader in affordable nationwide PTT communication solutions.
3900 Rock Creek Blvd, Unit 2
Joliet IL 60431
Toll-Free: 800-460-8729
This is perfect for small fleets and families that do not want to worry about dealing with a monthly bill and do not have the need for custom programming.