Crosstalk Prevention; Encrypted Integrated Data (Eid); Securenet; Over-The-Air Rekeying - Motorola APX 7000 User Manual

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redundancy within the system to address to the user in need. Mechanisms related to the Integrated
Voice and Data (IV&D) or data centric are all supported by DSR.

CrossTalk Prevention

This feature prevents crosstalk scenarios from happening, especially when a wideband antenna is
used. This feature allows the adjustment of the internal SSI clock rate of the radio. This subsequently
reduces the possibility of radio frequency interfering spurs and prevents the issues of crosstalk.

Encrypted Integrated Data (EID)

EID provides security encryption and authentication of IV&D data bearer service communication
between the radio and the Customer Enterprise Network.

SecureNet

SecureNet allows user to perform secured communications on an Analog or Motorola Data
Communication (MDC) channel. The MDC Over-the-Air Rekeying (OTAR) feature will allow users to
perform OTAR activities on an MDC channel.

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 allows a radio to be rekeyed by only one Key Management Facility (KMF) or
Key Management Controller (KMC).
Multi-system OTAR
Multi-system OTAR allows a radio to be rekeyed by multiple KMFs. After an initial programming, the
radio is able to seamlessly move to different secure systems 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 eliminate the audio holes
that were present and to turn on the busy LED when activity is present on the channel. Mixed Vote
Scan and Standard Conventional Scan configurations are supported. Priority Operation is also
supported.
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