User's Manual
Table Of Contents
- SYMBOLS USED IN THIS MANUAL
- REGULATORY INFORMATION
- CHECKING ITEMS IN THE PACKAGE
- RADIO OVERVIEW
- BEFORE USING THE RADIO
- RADIO STATUS INDICATORS- OPERATIONAL MODE AND STATUS ICONS THE DISPLAY
- LED INDICATOR
- TURNING THE RADIO ON AND OFF
- ADJUSTING THE VOLUME
- SELECTING A ZONE
- SELECTING A CHANNEL
- SWITCHING THE CHANNEL MODE BETWEEN ANALOG AND DIGITAL
- LOCKING AND UNLOCKING THE KEYPAD
- HOME SCREEN
- PRIVATE CALLS
- GROUP CALLS
- ALL CALLS
- TALK-AROUND (DIRECT MODE)
- CALLS ON ANALOG CHANNELS
- BATTERY STRENGTH INDICATOR
 
- MENU NAVIGATION
- SCANNING CHANNELS
- EMERGENCY COMMUNICATIONS
- HDC1200 SIGNALING
- SECURE COMMUNICATIONS
- MISCELLANEOUS FEATURES
- TROUBLESHOOTING AND TECHNICAL ASSISTANCE
- CARE AND CLEANING
- MODEL NUMBERS
- WARRANTY REGISTRATION AND WARRANTY
SECURE COMMUNICATIONS 
Publication 14222-1150-2000, Rev. A  55 
GENERAL INFORMATION 
The radio’s Scrambler feature for analog channels can be used to reduce the likelihood of someone 
“eavesdropping” via analog radio channels. This feature employs analog voice inversion technology. 
This feature can be enabled and disabled on a per-channel basis. 
The radio’s Encrypt feature for digital channels can be used to prevent “eavesdropping” via the digital radio 
channel. This feature employs 256-bit  digital  AES encryption technology. This feature ensures the best 
guarantee of communication privacy. This feature can be enabled and disabled on a per-channel basis. 
OPERATION 
The Scrambler/Encrypt feature may be programmed to automatically enable when a channel is selected, or it 
may be manually enabled. When this feature is enabled/active, the   icon appears in the display. 
Manually Enabling and Disabling Scrambler/Encrypt 
There are two (2) possible ways to enable and disable the Scrambler/Encryption feature: 
•  Scrambler:
  With an analog channel selected, choose:  Menu > Settings >  Radio Set >  Scrambler  > 
Enable or Disable. 
Encrypt
: With a digital channel selected, choose: Menu > Settings > Radio Set > Encrypt > Enable or 
Disable. 
•  If the Scrambler or Encrypt shortcut key is programmed to a key, press this key to enable or disable the 
feature. A high-pitched tone sounds to indicate the feature is enabled. A low-pitched tone sounds to 
indicate the feature is disabled. 










