Tyco Electronics P5400 manual Private Operation, Receiving an Encrypted Call

Page 47

MM-012099-001, Rev. B

If the cryptographic key(s) are zeroed, one or more keys must be transferred from the Keyloader into the radio before private communications may continue.

8.18.4Private Operation

8.18.4.1 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 will be decrypted, the icon will be displayed, the receiver will unsquelch, and the message will be heard in the speaker. For this to occur, the selected group or channel must be programmed for private operation and the correct cryptographic key must be loaded into the radio.

8.18.4.2 Transmitting an Encrypted Call

1.Select the desired group or channel.

2.Place the radio in Private Mode by pressing key; then follow the selection mode rules. On a

System radio, the key can be used to toggle the Private Mode ON/OFF. When Private Mode is enabled, the icon is displayed.

3.If the last state of the radio was Private Mode, the Private Mode will be enabled on power up. Also, the Private Mode will be enabled if forced operation has been programmed in the radio.

If a group or channel is not programmed for Private Mode operation, PVT DIS will be 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 does not have the correct encryption key loaded, NO KEY# will be displayed and the call will not be transmitted.

4.Continue with standard transmission procedures. A Private Mode access tone will be heard when the PTT button is pressed.

8.18.4.3 Scanned Group Calls

Receiving a Scanned Group Call is the same as receiving a selected group call. During the scan hang time, if the radio was programmed for auto-select, it will transmit back in the same mode it received the call. For example, if a clear group is entered in the scan list, it will only receive 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 and under different modes, (clear, digital, or private), then only the first occurrence of the group will be used.

Table 8-7: Transmit/Receive Mode Compatibility for Digital Voice Operation

GROUP/CHANNEL

 

CLEAR

 

 

DIGITAL

 

 

PRIVATE

 

PROGRAMMING

 

 

 

 

 

 

 

RECEIVE

 

 

RECEIVE

 

 

RECEIVE

 

(TRANSMIT)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CLEAR

 

Yes

 

No

 

No

DIGITAL

 

Yes

 

Yes

 

No

PRIVATE

 

Yes

 

No

 

Yes*

*assumes the proper cryptographic key is loaded

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Contents P5400 Series MM-012099-001, Rev. B Table of Contents Menu 28.1 10.8.1 117 116Tables Safety Section Safety Conventions RF Exposure Guidelines Safety Training InformationElectromagnetic INTERFERENCE/COMPATIBILITY RF Exposure Compliance Testing DistancesElectronic Devices Antenna Care and ReplacementOperating Tips Efficient Radio OperationPotentially Explosive Atmospheres AircraftElectric Blasting Caps Batteries Conditioning Battery PacksConditioning NiMH Battery Packs Conditioning NiCD Battery PacksCharging Guidelines Charging Battery PacksBattery Pack Usage Additional InformationRemoving the Battery Pack Changing the Battery PackAttaching the Battery Pack Battery DisposalProduct Information Water Resistance IntroductionOptions and Accessories Options and AccessoriesCarrying Case Accessories P5400 Portable Radio User InterfaceButtons and Knobs ControlsKeypad P5400 Front Keypad Functions P5450 Scan Model Front PanelDisplay Sample Display Edacs ModeStatus Icons Descriptions Radio Status IconsTri-Color LED Universal Device ConnectorThis page intentionally left blank Edacs Operation Edacs Operation Power ON-OFF Volume KnobP5450 Scan Radio Front Panel P5450 Keypad Functions KEY Function Display Radio Display in Edacs ModeStatus Icon Descriptions Radio Status IconsStatus Messages TRI-COLOR LEDError Messages Alert Tones Alert TonesTurning on the Radio System Selection11.1 P5470 Model GROUP/CHANNEL SelectionModify Scan List Menu Item Selection Process 11.2 P5450 ModelMenu Item Information Backlight Menu Item Selection ParameterInformation Display Feature Display Parameter SettingDeclaring AN Emergency Contrast AdjustHIGH/LOW Power Adjustment Backlight ON/OFFDigital Mode Using the Menu ButtonUsing the Pre-Programmed Option Button Clear ModeSystem Encryption Key Display Private ModeReceiving an Encrypted Call Private OperationP5450 Model Radio Scanning Trunked GroupsTurning Scan On and Off Adding Groups to a Scan ListP5470 Model Radio Wide Area System Scanning Scanning Trunked SystemsDeleting Groups from a Scan List Nuisance DeleteReceiving an Emergency Call Emergency OperationPriority System Scan ProScanReceiving and Responding to an Individual Call Individual CallsDeclaring an Emergency Call 11 Calls Received Lists Sending an Individual CallReceiving a Telephone Interconnect Call Telephone Interconnect CallsCall Storage Lists Sending a Telephone Interconnect Call Dual-Tone Multi-Frequency Overdial/Conventional ModeP5450 Model Radio Method 2 P5470 model radios only Programmable EntriesSTATUS/MESSAGE Operation Message Operation Status OperationEmergency Operation Dynamic Regroup OperationMacro KEY Operation Portable DataData on Operation Scan Lockout ModeDisplays Data OFF OperationData Lockout Mode This page intentionally left blank Conventional Operation Conventional Operation Power ON-OFF Volume Knob Voice Group Selection Control Knob P5450 Scan Radio Front Panel P5470 System Radio Front Panel Radio Display Radio Status Icons Battery Charge Icons Full CycleMode no repeater Name Tone Description Error MessagesMethod 1 P5470 Model2 P5450 Model Nuisance DeleteBacklight Menu Item Parameter Only. No user selectable settings LID in EDACS/EA. In Conv it has no Using the Pre-Programmed Option Button Using the Menu ButtonReceiving a Call Sending a Call This page intentionally left blank P25 Operation 10 P25 Operation Voice Group Selection Control Knob EMERGENCY/ Home Button Enter key P5470 System Radio Front Panel Display Display Descriptions TRI-COLOR LED Error Messages Call queued for processing 10.9.1 P5470 Model GROUP/CHANNEL Selection10.9.2 P5450 Model Selectable settings Select Telephone Press Digital Voice Operation 11 System Encryption Key Display Group Clear Digital Private Programming Receive Transmit Scanning Trunked Groups 100 101 102 103 104 105 106 107 108 109 110 Transmitting a Group Call Group Calls in P25 ModeExiting Data Calls Emergency Group Calls in P25 Mode Individual Calls in P25 ModeReceiving an Emergency Group Call 114 Technical Assistance Warranty Information Technical Assistance Troubleshooting Basic TroubleshootingBattery Warranty 119 Tyco Electronics Wireless Systems Segment
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