Motorola 4550 User Manual

This feature prompts an emergency to be raised if there is no 
user activity, such as any radio button press or activation of the 
channel selector, for a predefined time.

Following no user activity for a programmed duration, the radio 
pre-warns the user via an audio indicator once the inactivity 
timer expires.

If there is still no acknowledgment by the user before the 
predefined reminder timer expires, the radio initiates an 
Emergency Alarm.

Only one of the following Emergency Alarms is assigned to this 
feature:

Emergency Alarm

Emergency Alarm with Call

Emergency Alarm with Voice to Follow 

The radio remains in the emergency state allowing voice 
messages to proceed until action is taken. See Emergency 
Operation on page 36 on ways to exit Emergency.

NOTE: This feature is limited to radios with this function 

enabled. Check with your dealer or system 
administrator for more information.

You can adjust your radio's squelch level to filter out unwanted 
calls with low signal strength or channels that have a higher 
than normal background noise.

Settings: Normal is the default. Tight filters out (unwanted) 
calls and/or background noise. However, calls from remote 
locations may also be filtered out.

Procedure: 
Press the programmed Squelch button to toggle squelch level 
between normal and tight.
OR
Follow the procedure below.

S

 to access the menu.

P

or

 

Q

 to Utilities and press 

N

 to select.

P

or

 

Q

 to Radio Settings and press 

N

 to select.

P

or

 

Q

 to Squelch and press 

N

 to select.

Choose either Tight or Normal and press 

N

 to select.

Screen returns to the previous menu.

NAG_6880309T15.book  Page 56  Tuesday, March 9, 2010  11:47 AM