Advanced Features

54

When your radio receives an Emergency Alarm, it displays the Emergency Alarm received indications until acknowledgement is sent (if enabled) and you exit the Emergency mode, by long pressing the emergency button.

You will not be able to receive any other indications or displays for any other calls until you exit the Alarm List.

When your radio receives an Emergency Alarm, and you change the radio channel, the radio automatically exits the Alarm list. However, the radio remains in Emergency mode so the new channel displays the Emergency icon and the LED blinks red. When you change the radio channel back to the previous channel, radio continues to display the Emergency icon and the LED continues blinking red.

Responding to an Emergency Alarm

Procedure:

When receiving an Emergency Alarm:

1In the Alarm List, ^ or vto the required alias.

2Hold the radio vertically 1 to 2 inches (2.5 to 5.0 cm) from your mouth.

If the Channel Free Indication feature is enabled, you will hear a short alert tone the moment the transmitting radio releases the PTT button, indicating the channel is now available for use.

3Press PTT button to transmit non-emergency voice to the same group that the Emergency Alarm was targeted to. The LED lights up solid green. Your radio remains in the Emergency mode.

4Wait for the Talk Permit Tone to finish (if enabled) and speak clearly into the microphone.

5Release the PTT button to listen. When the emergency initiating radio responds, the LED blinks green, the radio unmutes and the response sounds through the radio's speaker. You see the Group Call icon, the group ID, and transmitting radio ID on your display.

6Your radio displays the Alarm List.

Emergency voice can only be transmitted by the emergency initiating radio. All other radios (including the emergency receiving radio) transmit non-emergency voice.

Sending an Emergency Alarm

This feature allows you to send an Emergency Alarm (i.e. a non-voice signal) which triggers an alert indication on a group of radios.

Procedure:

1Press the programmed Emergency On button.

2The display shows Tx Alarm and the destination alias. The LED lights up solid green and the Emergency icon appears.

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Motorola SL7550 manual  Responding to an Emergency Alarm,  Sending an Emergency Alarm