Emergency Operation; Aegis Operation; Voice Modes - Ericsson TRUNKED MDX Operator's Manual

Emergency Operation

If the pre-programmed groupset on the currently selected system contains
an EMERGENCY/HOME group and the radio is in dynamic regroup, the radio
will exit dynamic regroup and declare the emergency on the HOME group. If
no EMERGENCY/HOME group is present, the radio will declare the emer-
gency on the currently selected dynamic regroup group.
Each talk group can be programmed for Aegis Digital Voice or Aegis
VGE Encrypted Digital Voice (private) mode of operation by
programming the "KEY" variable
When programmed "DIG", a talk group will only transmit Aegis Digital
Voice.
When programmed "1-6", a talk group will transmit Aegis VGE
Encrypted Digital Voice. Valid cryptographic keys must be loaded into
the MDX using the Universal Key Loader. The "PVT" icon (indicating
encrypted mode is on) can be turned on and off using one of the AUX
keys or by chosing "FORCED" as the mode of operation in the
programmer.

VOICE MODES

Each system in the radio is programmed for Aegis communications. Aegis
programmed systems have two (2) different voice modes: private and digital.
[A clear voice (Analog) mode is programmable for test purposes]. The voice
modes are programmed on a per-group basis within each trunked system. A
radio must be equipped with the encrypt/decrypt option before it will operate
in Aegis private mode.
TRANSMIT/RECEIVE MODE COMPATIBILITY
GROUP/CHANNEL
PROGRAMMING
(TRANSMIT)
PRIVATE
DIGITAL
* Proper cryptographic key must be loaded.

AEGIS OPERATION

NOTE
FOR AEGIS OPERATION
CLEAR
RECEIVE
Yes
Yes
DIGITAL
RECEIVE
No
Yes
PRIVATE
RECEIVE
Yes*
No
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