DESCRIPTION:

The VIAVI CX300 ComXpert Communications Service Monitor is a comprehensive radio test platform engineered to support installation, maintenance, troubleshooting, alignment, and verification of modern analog and digital communications systems. Designed as a field-portable alternative to traditional bench instruments, the CX300 combines multiple RF test functions into a single ruggedized platform.

The platform is optimized for:

• Land Mobile Radio (LMR)
• Professional Mobile Radio (PMR)
• Public safety radio systems
• Utility communications networks
• Transportation communications
• Critical infrastructure radio systems
• Broadband wireless infrastructure
• Military communications support applications

The CX300 supports testing of:

• Analog FM systems
• P25 Phase 1
• P25 Phase 2
• DMR
• TETRA
• LTE-ready radio environments
• Conventional radio systems
• Trunked radio systems

through a modular software-driven architecture.

Designed for field and depot technicians, the CX300 incorporates an intuitive multi-tab user interface that allows rapid switching between measurement setups without reloading configurations. The QuickSwitch™ workflow enables technicians to move between duplex, transmitter, and receiver testing modes while maintaining existing measurement settings.

The instrument integrates numerous RF test capabilities including:

• Communications service monitor
• Spectrum analyzer
• Tracking generator
• RF signal generator
• Channel analyzer
• Modulation analyzer
• Frequency error measurements
• Receiver sensitivity testing

within a single portable platform.

Optional Auto-Test applications provide automated alignment and maintenance procedures for major radio manufacturers. These applications perform repeatable test and alignment workflows according to OEM service specifications, reducing maintenance time while improving consistency across service operations.

The platform also integrates cloud-based asset and test management through StrataSync and remote operation through Smart Access Anywhere (SAA), allowing technicians and support teams to remotely access instruments, manage test results, and maintain software updates.

For RF infrastructure testing, optional Cable and Antenna Analysis capabilities allow measurement of:

• VSWR
• Return Loss
• Distance-to-Fault (DTF)
• Feedline performance
• Antenna system integrity

using an integrated vector network analysis function.

Technical Specifications

Frequency Range

Standard

• 100 kHz to 3 GHz

Optional Extended Range

• 100 kHz to 6 GHz

Spectrum Analyzer

• 9 kHz to 3 GHz standard
• Up to 6 GHz optional

Supported Technologies

• Analog FM
• AM
• PM
• SSB
• P25 Phase 1
• P25 Phase 2
• DMR
• TETRA
• LTE-ready architecture

Integrated Test Functions

• Communications Service Monitor
• Spectrum Analyzer
• Tracking Generator
• Channel Analyzer
• RF Generator
• Modulation Analysis
• Receiver Testing
• Frequency Error Analysis

Optional RF Infrastructure Testing

• Cable and Antenna Analysis
• Distance-to-Fault (DTF)
• Return Loss
• VSWR
• Vector Network Analysis

Connectivity

• Ethernet
• WiFi
• Bluetooth
• USB
• GNSS/GPS
• Remote Command Interface

Remote Management

• StrataSync cloud integration
• Smart Access Anywhere (SAA)
• Remote instrument control
• Remote file transfer

Display

• 10-inch colour touchscreen
• Multi-tab graphical interface
• Colour-coded pass/fail indicators
• QuickSwitch workflow navigation

Environmental

• MIL-PRF-28800F Class 3 ruggedized design
• Field portable operation
• Battery powered operation

Platform Configuration Options

Official Base Model

Available Technology Options

• CX300-F6GHz (6 GHz frequency extension)
• P25 Phase 1
• P25 Phase 2
• DMR
• TETRA
• Auto-Test Applications
• Cable & Antenna Analysis
• Bird Power Meter Integration

Supported Applications

• Radio alignment
• Depot maintenance
• Production testing
• Field troubleshooting
• Acceptance testing
• Infrastructure maintenance
• Public safety communications
• Utility radio systems

Standard Accessories

Typical supplied accessories include:

• CX300 main unit
• Rechargeable battery system
• AC power supply
• Touchscreen stylus
• USB interfaces
• Ethernet interface
• Operational documentation

Optional Accessories

Available optional accessories include:

• Auto-Test software packages
• P25 options
• DMR options
• TETRA options
• Cable and Antenna Analysis option
• Calibration kits
• Bird Power Meter integration
• Smart Access Anywhere licenses

Key Features

• Portable all-in-one communications service monitor
• Standard coverage to 3 GHz, optional 6 GHz
• Analog and digital radio testing
• P25 Phase 1 and Phase 2 support
• DMR and TETRA support
• Multi-tab QuickSwitch user interface
• Spectrum analyzer and tracking generator
• Automated radio alignment capability
• Cable and antenna analysis option
• StrataSync cloud connectivity
• Smart Access Anywhere remote control
• Rugged MIL-PRF-28800F Class 3 design
• Field, depot, and production test capability
• LTE-ready communications test architecture
• Designed for modern LMR and PMR environments