Wireless Voice & Data Logo


JVCKENWOOD Atlas Systems
  • Overview
  • ATLAS® 4000 Series
  • ATLAS® 6100/6200 Network Management System (NMS)
  • StarGate® 7000 Dispatch Console
  • ATLAS® 8000 Controller/Gateway

Atlas® P25 Systems

Atlas Radios

EFJohnson Technologies makes your critical communication system safe and simple to use. Its patented Latitude™ technology makes the Atlas® P25 application and transport network distinctive. This enables ATLAS systems to offer increased flexibility as compared with traditional LMR systems in various aspects of its operations.

ATLAS is the Most Modern & Flexible P25 System

Auto-Discovery & Self-Healing Sites
Any new site is automatically configured on the system once it is connected to the network. There is no need to manually reconfigure the existing sites. Each site on the system periodically broadcasts messages to the other sites, indicating its availability to participate in calls. When a new site gets deployed in the system, it immediately begins exchanging messages with the other sites. All sites in the system are aware of all the other sites in the system. Each site also knows which talkgroups every other site is interested in receiving. If a network connection is lost and then reestablished, the system heals itself automatically.

The inter-site communication leverages the power of IP multicast to provide one-to-many and many-to-many communication using a standard IP gateway router. Any site on the ATLAS enabled IP network that is capable of listening or sending voice packets can participate in the talkgroup. Network packets are simultaneously received and processed by all participating sites.

Distributed Call Control
The site initiating a call is responsible for call setup. Once the call is established, the initiating site encodes voice messages with a standard audio CODEC and uses standard IP multicasting to send real-time transport protocol (RTP) voice packets across the network to the other sites.

Simulcast Control
EFJohnson Technologies’ ATLAS simulcast solution has consolidated the traditional hardware elements of the comparator, prime site controller, and wide-area controller functionality into a software application. The ATLAS simulcast solution replicates this functionality at each site.

Simple Business Model

EFJohnson offers a flat pricing model for ATLAS systems. All supported software features are included in the base system offering. There are no additional fees for operational licenses, console features, network management system features, number of user IDs, number of talkgroup IDs, or number of NMS client users.

Adding a channel, a site, a console, or an NMS to a system only requires you to purchase the extra infrastructure equipment—no additional or hidden fees will be charged.

Just Four Basic Components

ATLAS systems consist of just four basic components. By using a common hardware platform to build the system components, the ATLAS solution reduces the need for spares by allowing a single pool of spares across multiple component types. The majority of ATLAS system components are based on commercial-off-the-shelf (COTS) hardware, significantly reducing system obsolescence and extending the life of your critical investment.

The ATLAS system’s minimal space requirements lower risk and add flexibility to co-locating new equipment with existing equipment, mitigating difficult cutover problems and reducing additional shelter costs.

Atlas 4000 Series

Phase 1 & Phase 2 Base Stations/Repeaters
The smallest, fully software definable IP-based linear base station operating in P25 Phase 1 and P25 Phase 2.

Click one of the options below to download the product spec sheet.

ATLAS® 4100 Base Station

ATLAS® 4200 Base Station

ATLAS® 4500 Base Station

Atlas 6100/6200

The ATLAS NMS is a state-of-the-art web-based network management system that provides centralized network management functionality for all EFJohnson infrastructure products. A fully redundant solution with web-based client access, the ATLAS NMS offers unified management and deployment of configuration to all infrastructure solutions including conventional systems, trunked systems, StarGate® consoles, and gateways. The ATLAS NMS is available in two options: ATLAS 6100 Basic NMS for small systems and ATLAS 6200 Advanced NMS for larger systems.


  • Management and deployment of configuration to all infrastructure products including conventional systems, trunking systems, StarGate® consoles, and gateways
  • Remote software upgrade of infrastructure products
  • Management and deployment of subscriber and talkgroup records Manual and scheduled backup and restore of system data
  • Radio administration including radio inhibit, dynamic regrouping, and radio check


  • Agency-specific management of subscriber records, talkgroup records, and reporting
  • Predefined and custom roles that restrict operator access and activity based on access credentials
Atlas Stargate 7000

The StarGate® Dispatch Console is a next-generation console that provides interoperability via direct connection to P25 trunked and conventional systems, analog systems, paging systems, and connection to other disparate systems via control stations. The StarGate console is IP-based and fully distributed with no requirement for central control equipment, allowing extensive scalability and expansion and with no single point of failure.

IP based, fully distributed with no requirement for central control equipment allowing extensive scalability and expansion and no single point of failure. Built-in end-to-end encryption support (standard DES-OFB and AES)


  • P25 conventional and trunked operation
  • Interoperability with disparate systems through EFJohnson control station, allowing group call, channel/zone change, scan, and emergency operations
  • Analog signaling with tone support including two-tone paging, DTMF tones, and alert tones
  • Built-in telephone interconnect and NENA operation
Atlas 8000

Multi-functional platform providing advanced control, interoperability, and gateway functions for the ATLAS distributed The ATLAS 8000 series controllers and gateways provide IP-based fully integrated solutions to support all the interoperability and interface capabilities across all the system types including conventional, trunked, hybrid, and simulcast solutions. In addition, the ATLAS 8000 gateways offer distributed call control, mobility functions, and also provide diverse interoperability solutions to interface multiple system types with the StarGate console.

The Atlas 8000 Features Include:

  • IP-based and fully integrated into the ATLAS distributed architecture solutions
  • Remote configuration, software upgrades, and fault reporting using the ATLAS Network Management System
  • Rugged components designed for industrial use
  • Low power consumption
  • AC or DC power options
  • Extra network ports (3) provided for future expansion and upgrades