Tait TM9100 User Manual - page 2
2
TM9100 and TP9100 User’s Guides
© Tait Electronics Limited December 2005
3 Additions to “Safeguarding you and your radio” chapter
About encryption
Note:
This feature is available for digital and
dual-mode channels only.
Your radio may be programmed to use
encryption to make your communications
completely private. You may be able to turn
encryption on and off and change the
encryption key that your radio uses when
you make a call.
The radio receiving your call must have the
same encryption key in order to decode
your encrypted call.
The encryption symbol
remains in
the display while encryption is turned on.
Turning encryption on and off
Using the Main menu
To turn encryption on and off using the
Main menu:
1. Press
Menu
and select
Security
>
Encryption
.
2. Scroll to
On
(or
Off
) and press
Select
.
The message
Encryption activated
(or
Encryption deactivated
) appears in
the display.
Using a function key
To turn encryption on and off using a
function key programmed for encryption.
1. Press the function key to turn
encryption on.
The message
Encryption activated
appears
in the display.
2. Press the function key again to turn
encryption off.
The message
Encryption deactivated
appears in the display.
Using the 3-way selector (TP9100 only)
To turn encryption on and off when the
3-way selector is programmed for encryption:
1. Turn the 3-way selector to either posi-
tion A or B.
The message
Encryption activated
appears
in the display.
2. Turn the 3-way selector to position C to
turn encryption off.
The message
Encryption deactivated
appears in the display.
Making an encrypted call
1. Select the required channel and group.
2. Check that encryption is on (the encryp-
tion symbol
is showing in the display).
3. Check that the channel is free (green
LED is off).
4. Press and hold the PTT key to transmit.
The name of the encryption key that
your radio is using for the transmission
may appear briefly:
While you are transmitting, the LED
glows red and the transmit symbol
appears in the display.
Receiving an encrypted call
When you receive an encrypted call, your
radio unmutes and you can hear clear speech
if the received call is encrypted with a key
that matches a key stored in your radio.
The name of the encryption key used in the
transmission may appear briefly:
If the key required to decode the call is not
present in your radio, then the radio
remains muted.