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KENWOOD Infrastructure

KENWOOD Infrastructure
  • P25 Systems
  • Broadband
  • DMR

Interoperability
Adopted Models:P25

The ability to communicate and coordinate among multiple public safety agencies and departments is essential for mission-critical operations. So the unsurpassed interoperability of the NX-5000 Series is especially advantageous: as well as supporting 3 digital protocols – P25 Phases 1 & 2 – in addition to FM analog, it also offers a rich feature set and future-ready/future-proof capabilities.

Multi-site Trunking
Adopted Models: NXDN P25

The NXDN Type-C trunking provides increased capacity, enhanced call capabilities, improved security and faster communications with less user interaction than conventional systems. The system automatically assigns channels for faster, efficient use of spectrum, allowing users to concentrate on the job at hand.

  • System Call Queuing: Stacks call requests and processes calls when a channel becomes available. System operators can assign higher-queue priority to certain users and pre-empt lower priority users for more important dispatch and emergency calls.
  • Priority Monitor: Monitors for up to 4 high-priority talk groups and automatically switches radios to a higher-priority call, such as from a dispatcher or supervisor.
  • Privacy: Group and individual calls enjoy complete privacy as other users in the system cannot monitor the calls.
  • Late Entry: Subscriber units may join a group or individual call already in progress after powering on or upon entering the system coverage area.
  • Message Trunking: Users are granted a traffic channel for the length of a two-way call to reduce interruptions by utilizing less system resources.
  • Transmission Trunking: Users are granted a traffic channel only during each push-to-talk, optimizing channel resources during peak traffic hours.

Two Multi-site Trunking schemes are available on the P25 protocol. P25 Phase 1 trunking (uses FDMA) is robust and reliable, while the feature-rich P25 Phase 2 that uses a 2-slot TDMA scheme requiring only 6.25 kHz of bandwidth realizes very high spectrum efficiency. Phase 2 is suitable if additional capacity is required.

Increased GPS Capacity / GPS Report Channel
Adopted Models:NXDN DMR P25

GPS is an ideal way to track the position of personnel and vehicles. And Gen2 further enhances this convenience to facilitate management. The System Controller is aware at all times how many GPS-equipped SUs are on duty, and when a new SU is registered, it is assigned a reporting frame and traffic channel (not the CCH, as before). Also, improvements to the air protocol minimize data overhead, thus maximizing traffic/data capacity while reducing GPS data processing time. Organizations that depend on GPS, such as utility companies, will be able to reap maximum benefit from these enhancements.

Phase 2 Ready
Adopted Models:P25

KENWOOD radios such as the NX-5000 Series is also compatible with P25 Phase 1 and Phase 2. While the original Phase 1 employs the FDMA access method for 12.5 kHz narrow-band communications, the newer Phase 2 uses a 2-slot TDMA scheme achieving 6.25 kHz equivalent bandwidth (the control channel is unchanged). Phase 2 is typically chosen if additional capacity is required.