80
Special Radio Features
Over-the-Air Rekeying (Rekey Request) (ASTRO Conventional 
Only)
The over-the-air rekeying (OTAR) feature allows the dispatcher to 
reprogram the encryption keys in the radio remotely. The dispatcher 
performs the rekey operation upon receiving a rekey request from the 
user. 
Use the Menu
2 Before the keys are erased, 
the display shows PLEASE 
WAIT.
3 When all the encryption keys 
have been erased, the 
display shows ERASED.
1 Press U to find REKY.
2 Press D, E, or F directly 
below REKY.
3 Press the PTT to send the rekey 
request. 
Note: Pressing the PTT again, or the Home or Emergency button, 
will exit the feature and allow the user to transmit in the 
normal manner.
4 If the display shows REKEY FAIL 
and a bad-key tone sounds, the 
rekey operation has failed. 
Note: If this occurs, your radio does not contain the Unique 
Shadow Key (USK). This key must be 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.
PLEASE WAIT
ERASED
REKY
REQUEST REKY
PLEASE WAIT
REKEY FAIL
94C26_XTS5000Mdl2.book  Page 80  Friday, June 25, 2010  5:23 PM