MAIN DISPLAY:  
The APX 4000 / 6000 has a color LCD display on the front 
of the radio.  
 The main display is how the radio shows you, at a glance, 
how your radio is operating and setup. The example to the 
right only shows some of the more commonly seen icons; 
however, there are additional icons which may appear and 
these are indicated in the following list. 
At the top left of the screen is a signal strength indicator.  
This functions much as the “signal bars” you may have on 
your cell phone screen. Moving to the right we see a     
number of small icons arrayed at the top of the screen.  In 
this example, we see a large Z that indicates we have a 
scan list populated and the radio is actively scanning talk-
groups within our scan list.  
Adjacent to the scan icon we see a small H.  The radios are 
set by default to “High Power,” thus this icon will 
constantly remain on your screen.  Adjacent to the H we 
can see a battery life indicator.  This also functions much 
as the battery life indicator you may have on your cell 
phone.   Moving towards the center of the display, we can 
see that the radio is currently set to FC Zone A Dg (Digital) and is tuned to talk-group FIRE 1 within that zone.  At the very bottom 
of the display we can see various menu options that can be accessed by pressing the corresponding menu select button.  We can 
change the menu  options at the bottom of the display by using the 4-way navigation button to scroll between the various choices. 
MAIN DISPLAY ICONS: 
ICON  DESCRIPTION  ICON  DESCRIPTION  ICON  DESCRIPTION 
Displays the RSSI. The more bars, 
the stronger the signal. 
If displayed the radio is in direct 
mode (tac channel). If absent the 
radio is in repeater/trunked mode. 
Displays the battery level. 
The radio is transmitting. 
Radio is set to high power by 
default; cannot be changed. 
Battery increments will drop as 
battery is depleted. 
Solid: Encryption is turned on.          
Blinking: The radio is receiving an     
encrypted transmission. 
Absent: GPS feature disabled.  
Solid: GPS feature available.   
Blinking: Seeking GPS signal. 
Battery display will flash when 
battery level is critical. 
A scan list is populated and the   
radio is currently scanning. 
Bluetooth is on and ready for a 
Bluetooth connection. 
You are tuned to a talkgroup in your scan 
list that is currently broadcasting. 
Radio is currently connected to 
external Bluetooth accessory. 
Private call or page received. 
FC  ZONE A Dg 
FIRE 1