User Manual
Table Of Contents
- 1 SAFETY SYMBOL CONVENTION
- 2 RF ENERGY EXPOSURE INFORMATION
- 3 OPERATION SAFETY RECOMMENDATIONS
- 4 OPERATING RULES AND REGULATIONS
- 5 PRODUCT DESCRIPTION
- 6 CHANGE OPERATING MODE (700/800 MHZ RADIOS ONLY)
- 7 OPENSKY OPERATION (700/800 MHZ RADIOS ONLY)
- 7.1 CH721 FRONT PANEL COMPONENTS
- 7.2 POWER UP AND VOLUME CONTROL
- 7.3 SELF-TEST
- 7.4 LOGIN TO THE NETWORK
- 7.5 LOG OFF THE NETWORK
- 7.6 TURN THE RADIO OFF
- 7.7 MENU DISPLAY AND CONTROL AREA
- 7.8 RADIO STATUS ICONS
- 7.9 DWELL DISPLAY
- 7.10 ERROR MESSAGES
- 7.11 PERSONALITY
- 7.12 ALERT TONES
- 7.13 BASIC MENU STRUCTURE
- 7.14 KEYPAD
- 7.15 CHANGE THE ACTIVE PROFILE
- 7.16 CHECK OR CHANGE THE SELECTED TALK GROUP
- 7.17 ENABLE/DISABLE VOLUME SIDE TONE
- 7.18 ADJUST DISPLAY AND BUTTON BACKLIGHT BRIGHTNESS
- 7.19 STEALTH MODE
- 7.20 ADJUST SIDE TONE AUDIO LEVEL
- 7.21 CHANGE OPERATING MODE
- 7.22 RECEIVE AND TRANSMIT VOICE CALLS
- 7.23 ADJUST AUDIO TREBLE LEVEL
- 7.24 INTERCOM MODE
- 7.25 TALK GROUP LOCK OUT
- 7.26 SCAN
- 7.27 MAKE SELECTIVE CALLS
- 7.28 SELECTIVE ALERT
- 7.29 TELEPHONE INTERCONNECT CALLS (SYSTEM MODEL CONTROL HEAD)
- 7.30 EMERGENCY COMMUNICATIONS
- 7.31 ENCRYPTION
- 7.32 PRESET BUTTONS
- 7.33 DYNAMIC REGROUPING
- 7.34 GPS COORDINATES
- 7.35 SCENE-OF-INCIDENT MODE
- 8 P25/EDACS/CONVENTIONAL COMMON OPERATION
- 8.1 TURN THE RADIO ON
- 8.2 CH721 FRONT PANEL COMPONENTS
- 8.3 SELECTION MODE RULES
- 8.4 DIRECT ACCESS
- 8.5 FEATURE ENCRYPTION DISPLAY
- 8.6 SYSTEM/GROUP/CHANNEL SELECTION
- 8.7 LAST SYSTEM/GROUP/CHANNEL RECALL
- 8.8 DIGITAL VOICE OPERATION (PROVOICE)
- 8.9 MACRO KEY OPERATION
- 9 EDACS AND P25 TRUNKED OPERATION
- 9.1 RADIO STATUS ICONS
- 9.2 MESSAGES
- 9.3 ALERT TONES
- 9.4 MENU
- 9.5 RECEIVE A CALL
- 9.6 SEND A CALL
- 9.7 CONVENTIONAL FAILSOFT
- 9.8 EMERGENCY OPERATION
- 9.9 SYSTEM SCAN OPERATION
- 9.10 GROUP SCAN OPERATION
- 9.11 INDIVIDUAL CALLS
- 9.12 SCAT OPERATION
- 9.13 TELEPHONE INTERCONNECT CALLS
- 9.14 MOBILE DATA
- 9.15 STATUS/MESSAGE OPERATION
- 9.16 EDACS CONVENTIONAL P1 SCAN
- 9.17 DYNAMIC REGROUP OPERATION
- 9.18 PAGE (P25 TRUNKED ONLY)
- 10 CONVENTIONAL OPERATION
- 11 P25 CONVENTIONAL OPERATION
- 12 BASIC TROUBLESHOOTING
- 13 TECHNICAL ASSISTANCE
- 14 KEYPAD REMAPPING
- 15 RADIO SETUP
MM-014716-001, Rev. E
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7 OPENSKY OPERATION (700/800 MHZ RADIOS ONLY)
7.1 CH721 FRONT PANEL COMPONENTS
The front panel of the control head includes a dot matrix display, controls for menu navigation, an
emergency button, three pre-set buttons, a Power On-Off/Volume Control knob, and a microphone
connector. In addition, the system model control head features a DTMF keypad (Figure 7-1). Table 7-1
lists all defau
lt front panel controls and their functions.
Figure 7-1: System Model
Figure 7-2: Scan Model
The buttons on the front panel are backlit for operation in a low ambient light level such as nighttime
operation. Some buttons also flash to provide feedback of various operating conditions.
In addition, the front panel contains a light-level sensor that samples ambient light levels for automatic
display and button backlight brightness adjustments. In other words, it automatically brightens the display
and backlights when higher external light levels exist and it automatically dims the display and backlights
during lower external light levels.