IFR Aeroflex Viavi 8150 TETRA AirAnalyzer

The IFR Aeroflex Viavi 8150 TETRA AirAnalyzer is a dual-receiver instrument for real-time capture and analysis of TETRA air interface signals. It records bi-directional communication between mobile stations and base stations, decodes protocol layers in real-time, and forwards processed data to a PC for storage and analysis. The analyzer simultaneously monitors complete uplinks and downlinks across all time slots of up to two carriers, enabling detailed voice, data, and signaling diagnostics in operational TETRA networks.

Technical Specifications

• Dual-receiver architecture with 10 MHz bandwidth per receiver


• Frequency range: 100 MHz to 1000 MHz


• Sensitivity: RSSI < −124 dBm; BER 80 dB


• IFDR at −45 dBm: −75 dBc


• Input impedance: 50 Ω


• Input VSWR: <1.5 (typical)


• Maximum input power: +30 dBm (high power path, typical) Reference Frequency


• Uncertainty: <10⁻⁷ Physical & Environmental


• 19" rack-mount enclosure, 3 HU


• Weight: <5.5 kg (approximately 5.3 kg)


• Operating temperature: 0°C to +50°C


• Power supply: 100 V to 240 V AC, 47–63 Hz


• Power consumption: <60 W Connectivity


• Ethernet, USB, RS232, digital I/O

Key Features Air Interface Capture & Decoding

• Simultaneous analysis of complete uplinks and downlinks (all time slots) across two carriers


• Real-time protocol decoding and data forwarding to PC


• Support for all major TETRA protocol layers Voice & Packet Data


• Dual-slot voice decoder with Wave recording format


• User-selectable direction and time slot monitoring


• Packet data storage compatible with third-party analysis tools TETRA Scanner


• Carrier detection and frequency range search


• Broadcast parameter identification and network configuration verification


• Time slot usage monitoring with traffic and measurement metrics Quality of Service Analysis


• SDS statistics, call setup timing, call queue metrics, and cell load assessment


• Graphical QoS presentation


• Channel utilization tracking by group and group calls Protocol Analysis


• Message sequence chart visualization of air interface signaling

Typical Applications Field testing and optimization of TETRA network deployments. Real-time troubleshooting of call setup, voice quality, and data transmission issues. Network capacity planning and resource utilization assessment.

Compatibility & Integration The 8150 integrates with standard PC environments via Ethernet, USB, and RS232 connections for data capture, logging, and post-analysis workflows.