1-2 Introduction: Radio Description
1.3 Radio Description
The ASTRO APX 2000/ APX 4000/ APX 4000Li radio provides improved voice quality across more 
coverage area. The digital process, called embedded signaling, intermixes system signaling 
information with digital voice, resulting in improved system reliability and the capability of supporting 
a multitude of advanced features.
ASTRO APX 2000/ APX 4000/ APX 4000Li radios are available in Single Display configuration. 
Table 1-1 describes their basic features.
NOTE:
*
 Only applicable for APX 2000/ APX 4000Li.
1.4 FLASHport
®
The ASTRO APX 2000/ APX 4000/ APX 4000Li radio utilizes Motorola’s FLASHport technology. 
FLASHport makes it possible to add software that drives the radio’s capabilities both at the time of 
purchase and later on. Previously, changing a radio’s features and capabilities meant significant 
modifications or buying a new radio. But now, similar to how a computer can be loaded with different 
software, the radio’s features and capabilities can be upgraded with FLASHport software.
Table 1-1.  ASTRO APX 2000/ APX 4000/ APX 4000Li Basic Features
Feature
Standard Control 
(Model 1.5) (
*
)
Limited Keypad (Model 2) Full Keypad (Model 3)
Display • Full bitmap color LCD 
display
• 3 lines of text x 14 
characters
• 1 line of icons
• 1 menu line x 3 menus
• White backlight
• Full bitmap color LCD 
display
• 3 lines of text x 14 
characters
• 1 line of icons
• 1 menu line x 3 menus
• White backlight
• Full bitmap color LCD 
display
• 3 lines of text x 14 
characters
• 1 line of icons
• 1 menu line x 3 menus
• White backlight
Keypad • Backlight keypad
• 3 soft keys
• Backlight keypad
• 3 soft keys
• 4 direction Navigation key
• Home and Data buttons
• Backlight keypad
• 3 soft keys
• 4 direction Navigation 
key
• 4x3 keypad
• Home and Data buttons
Channel Capability 512 512 512
FLASHport Memory 64MB 64MB 64MB