Motorola XTS 3000 manual Secure Operation, Selecting Secure or Clear Transmissions

Special Radio Features

Secure Operation

Note

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.

A

B

C

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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.

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.

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