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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8.8.5 Private Operation
8.8.5.1 Receiving an Encrypted Call
When receiving, the radio automatically switches between clear or private operation. If the transmission
being received is an encrypted transmission, it is decrypted, the receiver unsquelches and the message is
heard in the speaker. The selected group or channel must be programmed for private operation and the
correct cryptographic key must be loaded into the radio for this to occur.
8.8.5.2 Transmit an Encrypted Call
1. Select the desired group
or channel.
2. Place the radio in private mode by pressing the OPT button (System Model) or OPTION (Scan
Model).
If the last state of the radio was private mode, then private mode is enabled on power up. In addition,
the private mode is enabled if forced operation has been programmed in the radio
If a group or channel is not programmed for private mode operation, PVT DIS is displayed if an
attempt is made to enable private transmit mode. It is not possible to operate on this group/channel in
private mode.
If the radio is programmed for forced private transmit operation, FRCD PVT is displayed if an
attempt is made to disable private transmit mode. It is not possible to transmit on this group/channel
in clear mode.
If the radio does not have the correct encryption key loaded, NO KEY # is displayed and the call
does not transmit.
3. Continue with standard transmission procedures. A private mode access tone is heard when the PTT
button is pressed.
8.8.5.3 Scanned Group Calls
Receiving a scanned group call is the same as re
ceiving a selected group call. During the scan hang time,
if the radio was programmed for auto-select, it transmits back in the same mode it received the call. For
example, if a clear group is entered in the scan list, it only receives clear calls. If the same group was
available in private and entered in the scan list, it can receive clear and private calls, provided auto-select
was programmed in the radio. The user can select transmitting on the scanned or selected group. If a
group is entered in the scan list more than once in different modes (clear, digital, private), only the first
occurrence of the group is used.
8.8.6 Conventional Operation
8.8.6.1 Outside Address
The same outside address (works similar to Channel Guard operation) must be programmed in the
transmitting and receiving radios when ProVoice digital or private operation is enabled. If address is not
correct, the radios does not communicate.
8.8.6.2 Channel Guard
Channel Guard encode is transm
itted on analog clear channels only. Channel Guard decode operates on
either a clear or private channel. The exception is when G-STAR signaling is used (see Section 8.8.6.3).