Managing Encryption - Motorola APX 6000 User Manual

If the "Ignore Secure/Clear Switch when
Strapped" programming option is enabled,
the radio transmits without displaying any
messages in the strapped mode of
operation, regardless of the Secure/Clear
switch setting. This option must be
preprogrammed by a qualified radio
technician.
The Secure/Clear switch only applies
when the radio is transmitting.

Managing Encryption

Loading an Encryption Key
Note:
Refer to the key-variable loader (KVL) manual
for equipment connections and setup.
For first time usage, turn on the radio for a
minimum of 3 hours prior to removing the
battery or else the radio may not be able to
retain its key for 30 seconds.
1 Attach the KVL to your radio.
62
English
The display shows KEYLOAD, and all other radio
functions, except for power down, backlight, and
volume, are locked out.
2 Select the required keys and press the Menu
Select button directly below LOAD on the KVL.
This loads the encryption keys into your radio.
When the key has been loaded successfully, one of
the following scenarios occurs:
• You hear the radio sounds a short tone for single-
key radios.
• You hear the radio sounds an alternating tone for
multikey radios.
The KVL indicates that keyload is successful.
Multikey Feature
This feature allows the radio to be equipped with
different encryption keys and supports the DES-OFB
algorithm.
There are two types:
The encryption keys can be tied
Conventional
Multikey (strapped), on a one-per-channel
basis, through Customer