Ericsson LBI-38732E - Manual (Page 55)

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
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.
PVT
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