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AVQA Advanced Voice Quality Assurance – eine passive Überwachungslösung für Sprachkommunikationsnetze

Rohde & Schwarz bietet IP-basierte und flexible Sprachkommunikationssysteme für den sicheren, geschützten und effizienten Betrieb im Luftraum. Erfahren Sie mehr über Sprachkommunikationssysteme von Rohde & Schwarz.

CERTIUM Assurance, Sicherung der Sprachqualität in der Flugsicherung

The RSSI monitor in AVQA provides a great opportunity for long-term signal and noise monitoring of the radio infrastructure.

Voice quality assurance is indispensable for airspace operations. AVQA A/G monitor provides a detailed information on the A/G connection between radio and VCS system.

AVQA ground-ground monitor provides detailed information on the G/G connection between controller working positions,centers & airports.

VQA detects a high noise floor across ATC frequencies, isolates the source to a faulty electric fence, and alerts operators to resolve the hazard.

Discover how ROMATSA transformed their monitoring and fortified critical airspace communications with AVQA.

Rohde & Schwarz’s AVQA uncovered failures in 11 ROMATSA radios (including emergency frequencies) and resolved the risk within hours.

AVQA Advanced voice quality assurance system. The market-leading monitoring technology for air traffic service providers and airport operators

AVQA pinpoints constant squelch on 121.500 MHz to a single receiver by detecting a rising noise floor, isolates the interference, and alerts operators to fix the faulty power supply.

AVQA detects ED-136 violations—MOS falling below 4.0 from packet loss and jitter—isolates the cause and alerts operators before call quality degrades.

AVQA detects phantom calls as short, silent recordings, locates the EMI source—a faulty radar cable near RX antennas—and isolates it to prevent DVR crashes.

AVQA detects recurring interference on ATC frequencies from a public radio transmitter, pinpoints the source, and alerts operators for rapid mitigation.

AVQA loopback monitor provides a non-intrusive end to end test of the entire ATC voice communications system.

ISAVIA chooses R&S AVQA advanced voice quality assurance system from Rohde & Schwarz to monitor and control their IP-network, maintaining high service quality for Iceland.

21.03.2023 | Pressemitteilung | Aerospace

Air traffic management constantly needs to keep pace without making compromises. Safety and security are non-negotiable, and operations must also remain efficient and flexible. Rohde & Schwarz is your trusted partner for secure air traffic communications from the radio to the antenna. Find out more about its innovative solutions for secure and safe ATC communication in the Rohde & Schwarz white papers.

This article explains both the benefits and the challenges of IP migration in ATC using real-life case studies with practical advice and actionable insights

R&S solutions for ATC radios and voice communications systems for supervisory authorities, airports, air navigation service providers (ANSP) and airlines.

AVQA frequency monitor provides a great tool for analyses and alarming of irregularities.

AVQA detects a codec mismatch—audio packets arrive but remain silent; it pinpoints the A law/µ law incompatibility and alerts operators to resolve it.

Find out more about virtual center capabilities and remote ATC operations from multiple area control centers.

Find out more about remote air traffic control towers. CERTIUM supports virtualized tower operations where the controller does not work in the control tower, but rather from a remote tower.

Don't miss the latest version of the passive monitoring tool R&S®AVQA from Rohde & Schwarz. Thanks to new features, monitoring voice quality in your network is becoming much more easy.

Learn how Rohde & Schwarz's ED‑137 CERTIUM VCS and AVQA provide quad‑redundant IP voice and continuous VoIP monitoring to ensure ATC safety and compliance.

AVQA detects non-standard keep alive packets that break RTP sequencing and cause MOS 1.0, isolates the offending traffic, and alerts operators to resolve the compliance breach.

AVQA detects severe jitter across emergency frequency radios, isolates the affected sites and radios within hours, and alerts operators to avert a potential crisis.

Rohde & Schwarz concludes successful deployment of R&S AVQA advanced voice quality assurance system for enhanced VoIP quality monitoring in Czech air traffic management.

24.04.2025 | Pressemitteilung | Crititcal Infrastructures

Air Navigation Services of the Czech Republic (ANS CR) has chosen the R&S AVQA advanced voice quality assurance system from Rohde & Schwarz to ensure the highest level of service quality across their IP-network. This cutting-edge solution will enable ANS CR to monitor and control their voice communication network, ensuring uninterrupted and crystal-clear communication for air traffic control.

07.03.2024 | Pressemitteilung | Aerospace

Country-wide RSSI monitoring for ATC: Detect radio interference, improve efficiency & reduce response times. Learn how our AVQA solution helps ANSPs.