Brief Answer
The emergency call, Lone Worker, and Dead Man Function are safety features of professional radios. An emergency call can be triggered by a button, Lone Worker monitors regular feedback, and Dead Man or Man-Down functions respond to position, immobility, or inactivity. Proper programming, defined alarm targets, acknowledgment of receipt, training, and regular testing are crucial.
Many devices offer safety features. However, the benefit only arises from a well-thought-out alarm concept and clear responsibilities.
The Most Important Functions
| Function | Principle | Important |
|---|---|---|
| Emergency Call | Active alarm button on the device. | Define alarm target and priority. |
| Lone Worker | Regular confirmation by the user. | Define appropriate times and escalation. |
| Dead Man / Man Down | Alarm for position, immobility, or inactivity. | Consider false alarms and testing process. |
What is Included in the Safety Process
- Who receives the alarm?
- How is the alarm acknowledged?
- What happens in case of radio dead zones or empty batteries?
- How are false alarms handled?
- How often are functions and processes tested?
Typical Errors
The function is activated in the device, but no one defines alarm targets, response times, or tests. This creates a false sense of security.
FAQ
What is Lone Worker?
A function for solitary work where the user must regularly respond; otherwise, an alarm is triggered.
What is the Dead Man Function?
A function that can trigger an alarm under certain position, immobility, or inactivity.
Is Man Down the same?
Man Down is often used similarly. The specific implementation depends on the device and programming.
Is activation in the radio sufficient?
No. Alarm target, process, training, and testing are crucial.
Sources and Currency
This page was created on July 6, 2026. Technical and regulatory information must be matched with current manufacturer data, standards, frequency specifications, and site conditions for specific projects.