Motorola 4550 - Manual (Page 66)

Advanced Features
English
56
Lone Worker
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.
Utilities
Setting the Squelch Level
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.
1 S to access the menu.
2 P or Q to Utilities and press N to select.
3 P or Q to Radio Settings and press N to select.
4 P or Q to Squelch and press N to select.
5 Choose either Tight or Normal and press N to select.
6 Screen returns to the previous menu.

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