Motorola XPR 5550 Benutzerhandbuch

Your radio is able to notify you of an incoming call via the horns 
and lights feature. When activated, an incoming call sounds 
your vehicle's horn and turns on its lights. 

This feature needs to be installed through your radio’s rear 
accessory connector by your dealer.

Procedure:
Press the programmed Horns/Lights button to toggle horns 
and lights feature on or off.
OR
Follow the procedure below.

g

 to access the menu.

f

 or 

h

 to Utilities and press 

g

 to select.

f

 or 

h

 to Radio Settings and press 

g

 to select.

f

 or 

h

 to Horns/Lights and press 

g

 to select.

Press 

g

 to enable Horns/Lights. The display shows 9 

beside Enabled.
OR
Press 

g

 to disable Horns/Lights. The 9 disappears from 

beside Enabled

You can enable and disable the radio’s internal public address 
(PA) system.

Procedure: 
Press the programmed PA On/Off button to toggle the feature 
on or off.

You can enable or disable the audio routing between the 
connected public address (PA) loudspeaker amplifier and the 
radio’s internal public address (PA) system.

Procedure: 
Press the programmed Ext PA On/Off button to toggle the 
feature on or off.

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