APX 6500 O5 CH 
41 
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 Emergency Operation 
Special Considerations for Emergencies 
ADVANCED FEATURES 
•  If you press the emergency button while in a channel that 
has no emergency capability, a low-pitched tone sounds. 
 
•  If the unit is out of the range of the system and/or the 
emergency alarm is not acknowledged, a tone sounds and 
the display shows NO ACKNOWLEDGE. 
 
•  If you press the emergency button, then change to a mode 
that has no emergency capability, the display shows NO 
EMERGENCY and a continuous low-pitched tone sounds 
until a valid emergency mode is selected or until the 
emergency is cancelled. 
 
•  When an emergency is active, changing to another mode 
where emergency is enabled (trunked or conventional) 
causes an emergency alarm and/or emergency call to be 
active on the new mode. 
Emergency (Orange) Button*