Motorola BASIC XTS 3000 - Manual (Page 32)

28
Special Radio Features
Secure Operation
Secure operation provides the highest level of commercially
available voice security on trunked or conventional channels.
Unlike other forms of security, Motorola digital encryption
provides signalling that makes it virtually impossible for others to
decode any part of an encrypted message.
Selecting Secure or Clear Transmissions
The Secure/Clear Switch (if programmed, see page 2)
will set the transmit operation of the radio before the
PTT Switch is pressed; the transmit operation cannot
be changed while the PTT Switch is pressed.
If a channel is programmed for secure-
only operation, and the Secure/Clear
Switch is in the clear (
E) position,
when the PTT Switch is pressed, an
invalid-mode tone will sound, and
the radio will not transmit until the
Secure/Clear Switch is set to the
secure (
D) position.
Note
See page 2
for your
radio’s
feature-
control
programming.
A B
C
If a channel is programmed for clear-
only operation, and the Secure/Clear
Switch is in the secure (
D) position,
when the PTT Switch is pressed, an
invalid-mode tone will sound, and
the radio will not transmit until the
Secure/Clear Switch is set to the
clear (
E) position.
Model I Book Page 28 Wednesday, August 14, 1996 8:51 AM