KNG Series Trunked Radio Programming Guide
Page 40 of 57
July 2014
9.11.5
Confirmed Data
Max Tx Attempts
: Specifies the number of times the radio attempts to send confirmed data before the
attempt is considered a failure and ends (non-registrations).
Time Between Attempts
: Specifies the approximate time that the radio waits before attempting to
resend a confirmed data packet.
9.11.6
OTAR
The Network and Security Level settings are specific to the KMF in use. Contact the system administrator
to determine the proper settings.
OTAR Enable
: Select to enable Over the Air Rekeying (OTAR) of encryption keys on theP25 Trunking
system
OTAR De-Registration
: When enabled the radio will deregister from the KMF Server and trunked data
system when powering off or switching to other trunked radio systems.
Rekey Request Timeout
: When rekeying is initiated by the radio (Rekey Request message) this setting
determines the maximum length of time the radio will wait for the Rekey Request procedure to
complete before reporting a time out. Times of 15 to 240 seconds can be programmed. Default is 60
seconds.
Rx Security Level
: Two settings are possible for this feature:
Enhanced: The radio accepts only encrypted and authenticated KMM’s from the KMF.
Basic: The radio accepts any KMM that is in a format allowed by the OTAR standard.
Tx Security Level
: Two settings are possible for this feature:
Enhanced: All OTAR procedures originating from the radio are encrypted and authenticated. If
they cannot be encrypted and authenticated, the radio does not send the KMM.