User's Guide

Table Of Contents

extra layer of safety when using Emergency Operation in a critical situation, for example during a direct

attack on the user.

3.5.10

Emergency Alert

This feature allows the radio to send emergency alerts to other radios within its DMO coverage by

pressing the Emergency button. Even in TMO mode, the radio monitors a special DMO emergency

frequency for possible emergency alerts, and responds to them by automatically joining the emergency

call.

To initiate the emergency alert, the radio must be in MS-MS DMO mode or out of coverage in TMO

mode. The alert is not sent to the dispatch console.

To receive the emergency alert, the radio must be in DMO or TMO, within RF range of the initiating

radio, and must not be in a call. When the radio receives the emergency alert, it joins the call

automatically.

The following table illustrates the dependencies between the current radio mode and the type of

emergency operation:

Table 11: Emergency Operation Dependencies

Radio Mode Initiate Emergency Emergency Alert Received

(Yes/No)

DMO, MS-MS, idle Emergency Alert Yes

DMO, Repeater, idle Standard DMO Emergency Yes

DMO, Gateway, idle Standard DMO Emergency Yes

DMO, in call Per communication mode No

TMO, no coverage Emergency Alert Yes

TMO, in coverage, idle Standard TMO Emergency Yes

TMO, in coverage, in call Standard TMO Emergency No

Network Monitor, MS-MS Emergency Alert No

Network Monitor, Repeater Standard DMO Emergency No

Gateway operation, in cover-

age

Standard TMO Emergency No

Repeater operation Standard DMO Emergency No

3.5.11

Disaster Alert

Disaster Alert call is a broadcast emergency call initiated by the radio, with emergency pre-emptive

priority that everyone in a broadcast area can hear. This feature is designed for catastrophic situations,

such as earthquakes, and has the highest priority over other calls. All radios under Disaster Alert

display emergency notification on their screens. The alert message, its duration, and destination

talkgroup can be configured in the codeplug.

To initiate Disaster Alert, switch the radio to Disaster Alert mode and press PTT button. When the call

ends, the radio exits the Disaster Alert state.

During Disaster Alert, other functionality is impacted:

•

When Disaster Alert begins, any other ongoing services are terminated.

MN001488A01-BF (en-US)

Modes

DRAFT