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ADVANCED FEATURES
Secure Operations
Requesting an Over-the-Air Rekey (ASTRO
®
25 Conventional Only)
If the Multi-system Over-the-Air Rekeying feature is in use, the rekey request is only for the current selected
secure profile.
Ensure that the Unique Key Encryption Key (UKEK) or Unique Shadow Key (USK) is loaded into the radio
with the Key Variable Loader (KVL) before the rekey request can be sent. Refer to your local key management
supervisor for more information.
Procedure:
1. From the home screen, scroll left or right to Reky.
2. Press the Menu Select button directly below Reky.
3. Press the PTT button to send the rekey request.
OR
Press the PTT button again, or the Home or Emergency button, to exit the feature and transmit in normal
mode.
If the rekey operation fails, you hear a bad-key tone and the display shows Rekey fail.
Note: The rekey operation failure indicates that your radio does not contain the UKEK or USK.
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