66
Key Zero
All cryptographic keys can be zeroed (erased from radio memory) by pressing
the
c
button (System Model) or
C
(Scan Model) and while still pressing
this button, press and hold the
o
button (System Model) or
O
(Scan Model).
Press both buttons for 2 seconds. A series of warning beeps will begin at the
start of this 2 second period and then switch to a solid tone after the keys have
been zeroed. The display will indicate
KEY ZERO
.
If the cryptographic key(s) are zeroed, one or more keys must be transferred
from the Keyloader into the radio before private communications may
continue.
Private Operation
Receiving An Encrypted Call
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 key light (System Model) or OPTION key light
(Scan Model) will flash, the receiver will un-squelch 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 Call
1. Select the desired group or channel.
2. Place the radio in private mode by pressing the PVT button (System
Model) or
O
(Scan Model). When private mode is enabled, the PVT
key light (System Model) or OPTION key light (Scan Model) will be ON.
If the last state of the radio was private mode, the private mode will be
enabled on power up. Also the private mode will be enabled if forced
operation has been programmed in the radio
If a group or channel is not programmed for private mode operation,
PVT
DIS
will be displayed if an attempt is made to enable private transmit
mode. It is not possible to operate on this group/channel in private mode.
If the radio is programmed for forced private transmit operation,
FRCD
PVT
will be displayed if an attempt is made to disable private transmit
mode. It is not possible to transmit on this group/channel in clear mode.
If the radio does not have the correct encryption key loaded,
NO KEY #
will be displayed and the call will not be transmitted.
Содержание Orion
Страница 1: ...Operator s Manual LBI 38888 Rev N Mar 05 Orion Mobile Radio ...
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