Operating instructions

Advanced Features

English

Secure Operations

Secure radio operation provides the highest commercially

available level of voice security on both trunked and

conventional channels.

Unlike other forms of security, Motorola digital encryption

provides signaling that makes it virtually impossible for others to

decode any part of an encrypted message.

Enabling the Secure Transmission

1 > or < to Secure and press the Menu Select button directly

below SEC.

2 The display shows m, Secure on and the current key, if

multi-key has been enabled.

3 Monitor the mode to be sure it is not in use.

4 Press PTT button to transmit.

Note: If the selected channel is preprogrammed for clear-only

operation – when you press the PTT button, an invalid

mode tone sounds and the display shows Clear TX

only.

The radio will not transmit until you disable the secure

mode.

Clearing the Secure Transmission

1 > or < to Secure and press the Menu Select button directly

below SEC.

2 The m disappears and the display shows Secure off.

Managing Encryption

Loading the Encryption Key(s)

Note: Refer to the key-variable loader (KVL) manual for

equipment connections and setup.

Procedure:

1 Attach the KVL to your radio.

2 The display shows Keyloading, and all other radio

functions are locked out, except for power down, and

volume.

3 Press the Menu Select button below Target.

4 Press the Menu Select button below Load.

5 Press the Menu Select button below Key for single-key.

Press the Menu Select button below Group for multikey.

6 > or < to the required key or group.

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