NexLog Recording Systems
Advanced Communications Recording Solutions for Air Traffic Control and Air Traffic Management Centers

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Recording Solutions for Air Traffic Control

World ATM Congress 2016Eventide communications recorders have been deployed at air traffic control centers and towers in over 50 countries. NexLog high-reliability voice recording systems provide voice recording, archival storage, and easy access to recordings. Eventide recorders include redundant power supplies, a RAID1, RAID5 or RAID10 redundant hard disk array, and Linux operating system - for maximum up-time. Accurate time synchronization is provided via standard NTP or optional IRIG-B connectivity. Recorded calls may be accessed directly from the recorder's optional front panel touch screen controls or via Eventide's MediaWorks PLUS software.

Eventide NexLog communications recorders can be equipped to record audio from all types of ATC/ATM audio sources:

  • Legal Recording
  • Controller Working Positions (CWP)
  • Voice Communications & Control Systems (VCCS)
  • Ground Radio Stations (GRS)
  • Ambient Audio
  • Administrative Telephones

ED137b-Part 4 (Next Generation VoIP Recording for ATC/ATM)

Eventide offers advanced IP recording solutions that implement the ED137b/Part 4 recording Interface, as defined under European Organization for Civil Aviation Equipment (EUROCAE) WG67.

This capability allows Eventide NexLog recorders to interoperate with and record from ED137-capable Ground Radio Stations (GRS), Controller Working Positions (CWP), and Voice Communications & Control Systems (VCCS).

Eventide is a member of the EUROCONTROL VOTE (VoIP in ATM Implementation and Transition Expert) group, which deals with validation and deployment matters related to next generation VoIP communications used in Air Traffic Management (ATM). Eventide is also a member of EUROCAE and participates in EUROCAE WG 67.

NexLog ED137 Application Note

Analog and Digital Recording for ATC

In addition to ED137, Eventide NexLog communications recorders can be equipped to record audio from other ATC/ATM audio sources, including:

  • Analog (2-wire or 4-wire) from CWP or VCCS
  • Analog from amplified microphones
  • T1 or E1 digital circuits from VCCS

Replay Synchronization with Thales TopSky

Eventide's NexLog recorders and are capable of interoperation with ThalesTopSky Air Navigation System, providing synchronized replay of audio along with the controller's working position imagery (under API control from the Air Navigation system's scenario replay functions). Eventide's NexLog recorders have successfully passed testing at Thales Air Systems in Rungis, France for interoperability with TopSky ATC X release 3.20. Testing occurred during the week of 31 March, 2016. Tests including VRS ICD Protocol, replay search, play, pause, and resume were performed. The NexLog recorder passed all interoperability tests, and was able to record and playback voice synchronized with TopSky Playback server at the Controller Working Position (CWP).

NexLog TopSky Audio Synchronization Application Note

Replay Synchronization via API

Eventide offers custom API options for the control of time-synchronized audio replay by third-party radar/air navigation applications.

Data Recording and ATG Screen Recording

Eventide and our technology partners offer comprehensive solutions for recording & replay of ATC voice communications, radar data, and CWP screens - including at-the-glass (ATG) recording. Our partners include SkySoft-ATM and Thruput Ltd. Please contact Eventide's Sales Department for additional information and quotation.

Redundant Recording

Eventide NexLog Recorders in Rack

Two independent Eventide communications recorders may be connected in parallel, assuring fully redundant recording of each transmission.

Eventide's NexLog voice recording systems provide high-reliability voice recording and archival storage, and provide secure & easy access to recordings. Eventide NexLog recorders include redundant power supplies, a RAID1, RAID5 or RAID10 redundant hard disk array, and Linux operating system for maximum up-time. Two independent Eventide communications recorders may be connected in parallel, assuring fully redundant recording of all communications activities. Recorded calls may be accessed directly from the NexLog recorder's optional front panel controls or via Eventide's MediaWorks PLUS browser-based software. Eventide communications recorders can be equipped to record all ATC/ATM Audio sources including ED137b-Part 4, as well as T1/E1 and ISDN circuits, digital PBX telephones, VoIP telephones, SIP trunks, SIP Phones, Emergency phones, PAGA systems, dispatch consoles & systems, P25 radio, DMR radio, Mototrbo radio, RoIP networks, PC screen activity, and more.

NEXLOG Brochure

MediaWorks PLUS Brochure

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