Ericsson AEGIS FDMRTS M-PA NARROWBAND 9600, Руководство оператора

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Displaying The Currently Used
Cryptographic Key Number
To display the cryptographic key currently in
use, press and release
@
and then press
^
One of the following messages will be displayed:
•
KEY x - where "x" is the key number (1 -
6) currently in use.
•
NO KEY x - where "x" is the key number
(1 - 6) programmed for the selected group
or channel. The selected group or chan-
nel has been programmed for private op-
eration but the key has been zeroed or
never transferred into the radio.
•
PVT DIS - the selected group or channel
is not programmed for private operation.
Receiving An Encrypted Message
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 PVT status
flag will flash, 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.
Transmitting An Encrypted Message
1. Select the desired group, channel or
Special Call.
2. Toggle operation to private transmit by
pressing and releasing
@
and then
pressing PVT (
P
). When private
transmit mode is enabled, the PVT
status flag in the display will turn on.
If a group, channel or Special Call is not
programmed for private mode operation,
PVT DIS will momentarily show in the
display if an attempt is made to enable
private transmit mode. It is not possible
to operate on this group/channel/Special
Call in private mode.
If the radio is programmed for forced
private transmit operation, FRCD PVT
will momentarily show in the display if an
attempt is made to disable private trans-
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