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Group/Channel Encryption Key
Key Zero
All cryptographic keys can be zeroed (erased
from radio memory) by pressing the
MONITOR/CLEAR button and while still pressing this
button, press and hold the OPTION button. Press
both buttons for 2 seconds. A series of beeps will
begins at the start of the 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
icon will turn
on, 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