AEGIS Private, ProVoice Private, And Voice Guard Private Modes
The Aegis, ProVoice and Voice Guard private modes allow the radio to transmit encrypted messages and receive clear or private transmissions. The radio will transmit private if the group/channel is programmed for private operation and forced operation is
If the radio was
•Private mode enabled, transmission always in private mode.
•Private mode disabled and private call received. Reply transmission will be private mode if made during scan hangtime. If reply transmission occurs after scan hangtime, transmission will be in clear mode.
Aegis or ProVoice transmissions cannot be received by a radio set to receive a Voice Guard transmission. Accordingly, Voice Guard or ProVoice transmissions cannot be received by a radio set to receive an Aegis transmission and niether Aegis or Voice Guard transmissions can be received by a radio set to receive ProVoice.
Cryptographic keys are transferred to the radio using a cryptographic Keyloader. Up to seven (7) different cryptographic keys, numbered
DES radios require a DES Keyloader (Option V4025 with software version 3.n or later). VGE radios require a VGE Keyloader (Option V4028 with software version 2.n or later).
When operating on a group or channel programmed for private mode, all transmissions will be private transmissions and the radio will receive clear and private signals. The PVT keylight (System Model) or OPTION keylight (Scan Model) turns ON when the private mode is enabled. If the selected group or channel is programmed for autoselect capability, the mode may be toggled between private and clear with the PVT button (System Model) or O button (Scan Model). Radios programmed for forced private operation do not allow a change of the transmit mode; therefore, the PVT button (System Model) or O button (Scan Model) has no effect.
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