Over-the-Air Rekeying
The Over-the-Air Rekeying (OTAR) feature allows the
dispatcher to remotely reprogram encryption keys in the
radio after a rekey request.
Single-system OTAR
Single-system OTAR is supported by a single Key
Management Facility (KMF). If the radio moves from
one secure system to another, it must be
reprogrammed to the new system.
Multi-system OTAR
Multi-system OTAR is supported by multiple KMFs.
After an initial programming, the radio is able to
seamlessly move to a secure system associated to a
newly selected channel.
NOTICE:
This feature must be preprogrammed by a
qualified radio technician. Check with your
dealer or system administrator for more
information.
P25 Digital Vehicular Repeater System
(DVRS)
Motorola Solutions offers an MSI Certified APX compatible,
third Party, P25 Digital Vehicular Repeater System (DVRS)
that provides low-cost portable radio coverage in areas
where only mobile radio coverage is available and portable
radio coverage is either intermittent or non-existent.
NOTICE:
Portable subscriber units enabled in the system for
Radio Authentication shall be able to authenticate
regardless of whether they are communicating
directly on the system or through a DVRS.
Conventional Talkgroup and Radio
Scan Enhancements
A few enhancements have been made to the Conventional
Talkgroup at the system. These enhancements improve the
Scan feature operation significantly when multiple agencies
are using a single conventional radio frequency channel.
These enhancements allow users to use Selective Squelch
to operate on only the subset of talkgroups that are
relevant to the users rather than all talkgroups on the
channel. These Scan improvements have been made to
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