Advanced Features
English
69
5 Press and hold the PTT button. Speak clearly into the 
microphone.
6 Release the PTT button to end the transmission and wait for 
a response from the dispatcher.
7 To exit Emergency Call, press and hold the preprogrammed 
Emergency button for about a second. 
Sending a Silent Emergency Alarm
This feature allows you to send an Emergency Alarm to the 
system without triggering any audio or visual indicators.
Procedure: 
1 Press the preprogrammed Emergency button.
2 The display shows no changes, the LED does not light up, 
and you hear no tones.
3 The silent emergency state continues until you:
Press and hold the preprogrammed Emergency button for 
about a second to exit the Silent Emergency Alarm mode.
OR
Press and release the PTT button to exit the Silent 
Emergency Alarm mode and enter regular dispatch or 
Emergency Call mode.
Changing Channels during Emergncy
For ALL Emergency transmissions, when changing channels:
• If the new channel is also preprogrammed for Emergency, 
you can change channels while in Emergency operation. The 
emergency alarm or call continues on the new channel.
• If the new channel is NOT preprogrammed for Emergency, 
the display shows No emergency, and you hear an invalid 
tone until you exit the Emergency state or change to a 
channel preprogrammed for Emergency.
Using the Emergency Keep-Alive Feature
This feature, when enabled, prevents the radio from being 
turned off via the On/Off Control Knob when the radio is in the 
Emergency state.
Note: The radio only exits the Emergency state using one of 
the ways mentioned in the previous sections. 
See Sending an Emergency Alarm on page 67, 
Sending an Emergency Call (Trunking Only) on 
page 68, Sending an Emergency Alarm with 
Emergency Call on page 68, or Sending a Silent 
Emergency Alarm on page 69.