Ericsson LBI-38732E manual Transferring Keys Into The Radio

Cryptographic keys are transferred to the radio using a cryptographic Keyloader. Up to seven (7) different cryptographic keys, numbered 1-7, can be transferred from a Keyloader and stored in the radio. An individual key is automatically selected on a per-group/channel basis according to the radio’s programming. Groups and channels within Aegis systems can be programmed for keys 1-7. Groups and channels within Voice Guard sys- tems can be programmed for keys 1-7. Up to 8 banks of 7 keys can be stored for Aegis (DES and VGE) systems and up to 4 banks of 7 keys for Voice Guard systems. The bank is specified per system.

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 trans- missions and the radio will receive clear and private signals. The PVT status flag in the display 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. Radios programmed for forced private op- eration do not allow a change of the transmit mode; therefore, the PVT button has no effect.

Transferring Keys Into The Radio

The following procedure outlines basic key transfer- ring steps.

1. Turn the radio off.

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