Motorola APX Series User Manual page 122

English
Trunking
The automatic sharing of communications paths between a
large number of users. Allows users to share a smaller
number of frequencies because a repeater or
communications path is assigned to a talkgroup for the
duration of a conversation.
Trunking Priority Monitor scan list
A scan list that includes talkgroups that are all from the
same trunking system.
USK
Unique shadow key.
vpn1
Adapter name used by the radio for encrypted LTE traffic.
VRS
Vehicular Repeater System.
Zone
A grouping of channels.
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