User Manual

Installation and Operator Handbook Programming and Configuration
AMX-MA-00657 Issue: 1.02 (USA) Page 20
5.4.4 Encryption Settings
Program/Encryption Settings opens the Encryption Settings Dialog Box as shown in Figure 5-10 listing the
currently configured Encryption keys. If an encryption key is entered, and its Key ID matches that of an
incoming transmission, the key will be used to decrypt the transmission. Up to 16 keys can be entered, and
the transmission will automatically select the correct key which matches the incoming Key ID.
NOTES
1. Encryption Keys, once configured, cannot be reviewed.
2. If the radio is not licensed for the encryption feature, the
encryption keys will be ignored (see Section 7 License
Features).
Figure 5-10 Encryption Settings Dialog Box
To Add an Encryption Key click ADD and the Add Key Dialog Box appears as shown in Figure 5-11.
The required key is entered into the eight 2-hex-digit boxes using the Tab key to move between boxes.
Note that each 2-hex-digit code must have odd parity. The DMR-25 programmer will check and report any
errors of the entered encryption key. Next, enter a Key ID between 0x0000 and 0xFFFF. When the
desired Encryption Key and Key ID are entered, click OK and the new key will be listed in the Encryption
Settings Dialog Box.
Clear Key: In the Add Key Dialog Box, an entered key can be cleared by clicking the Clear Key button.
Generate Random Key: To add a random key, click Generate Random Key button and assign a Key ID.
At any stage, the CANCEL button can be clicked and the key will not be added to the list.
Delete: To delete an existing Encryption Key, highlight the desired key and click DELETE.
Close: When satisfied with the list of Encryption Keys, click CLOSE in the Encryption Settings Dialog
Box.