3
Press the
Menu Select
button directly below
Sel
to save the newly selected keyset.
The radio exits keyset selection and returns to the
Home
screen.
NOTICE:
Press
, the
PTT
button, or the
Exit
menu selection, or turn the
16-
Position Select
knob to exit this menu at any time without changing the keyset selection.
6.16.3.5
Erasing Encryption Keys
Do one of the following to erase the selected encryption keys. You can use the options interchangeably
depending on your preference and the programmed functions.
Procedure:
• Erasing the selected encryption keys using the radio menu:
a.
or to
Eras
and press the
Menu Select
button directly below
Eras
.
The display shows the last user-selected and stored encryption key, and the available menu
selections.
b.
or
to the desired encryption key.
c. Press the
Menu Select
button directly below
Optn
.
The display shows the available key erase options.
d.
or
to the required option and press the
Menu Select
button directly below
Sel
.
e. Select
Erase all keys?
or
Erase single key?
by pressing the
Menu Select
button
below
Yes
to erase the encryption key(s) in the radio.
You can return to the previous screen by pressing the
Menu Select
button below
No
.
6.16.3.6
Infinite UKEK Retention
This feature enables Unique Key Encryption Key (UKEK) to be permanently stored in the radio even
when all the encryption keys are erased. Without this UKEK key, the radio cannot be rekeyed over the
air. The Infinite UKEK Retention settings can be different for each secure profile.
NOTICE:
This feature must be preprogrammed by a qualified radio technician. Check with your
dealer or system administrator for more information.
6.16.3.7
Hear Clear
Hear-Clear is a noise reduction system which composed of Companding and Random FM Noise
Canceller.
Companding
Reduces the channel noise, such as OTA transmission that is predominantly present in UHF2 and
900 MHz channel with the following features.
Compressor
Reduces the background noise flow and the speech signal at transmitting radio.
Expander
Expands the speech while the noise flow remains the same at receiving radio.
MN003110A01-AK
Chapter 6: Advanced Features
75