Datalink Monitoring

Big Data, Analytics and RF equipment

CNS/ATM Analytics

COSMOS is a flexible and adaptive Big Data solution dedicated to the CNS/ATM domain, bringing the air transport industry into the digital era. It leverages the wealth of information generated by aircraft and ground CNS/ATM systems as well as other aeronautical systems, offering a wide range of operations and business support solution possibilities with the objective to increase safety, situational awareness, and efficiency through better use and sharing of data among stakeholders.

Why use COSMOS?

Verify operational performance

Increase operational efficiency

Check and optimize costs

Verify compliance to standards

Anticipate service disruptions

Improve collaborative decision-making process

Customizable KPIs

Statistics query engine

Automatic reports

Data navigation

Geo-localized event tracking


Manual data import

Main principles

Data can be collected in real-time or post-processing from our customers’ operational environment, from third parties such as air traffic control, service providers network, airports and airlines, or from ALTYS’s network of cloud-connected sensors, in any type of format. The COSMOS system uses typed data collection techniques, flexible data structures, dynamic information extraction/storage, and multi-step processing. It is based on a scalable distributed cluster architecture using a NoSQL database for storage and processing of up to millions of records per day. The solution may be deployed at the user’s site or provided as a service with unlimited simultaneous remote connections possible.

Users access the valuable information presented by COSMOS via a secure web application. The COSMOS application gives users 24/7 access to a large of analytics tools and functions: reports, statistics, event trackers, alarms, maps, data export, and much more. Additionally, the COSMOS database offers a REST interface for connection to any third-party tool or client API.

Use cases

CNS monitoring

Fleet management

Airspace monitoring

Fee management

Anticipate service disruptions

System health monitoring

The industry’s reference datalink protocol analyzer

APA is a protocol decoder that is used to analyze digital communications traffic. It displays all VHF-based data communications exchanged between ground stations and aircraft, and allows users to visualize all layers of each protocol data unit (PDU). APA is commonly used in conjunction with ALTYS’s test products in support to troubleshooting and performance assessment. APA also is an essential part of the COSMOS platform, enabling both real-time monitoring and post-capture log analysis.

Why use APA?

Monitor traffic of operational ground infrastructures

Identify datalink issues (delays, provider aborts…)

Facilitate datalink problem resolution

Track progress of avionics lab testing and integration

Troubleshoot and understand test failures






Input Sources

Live VHF data

Live A429 data

Logs: CMU, Router…


Multi-mode, multi-channel radio receiver

MICRA is ALTYS Technologies’ all-in-one aeronautical digital radio receiver based on innovative software-defined radio (SDR) technology.

Why use MICRA?

Most cost-effective datalink receiver equipment

Compact and lightweight, 2U rack height

Integrates via IP with any aeronautical or ATC network

Plug-and-play with ALTYS monitoring platform

Small, lightweight, compact equipment

Modular solutions for maximum flexibility


Multi-mode, multi-function, multi-frequency capabilities

All-in-one equipment for reduced costs

USB connector
Plug-and-Play to ALTYS test solutions DREAM and PEER
ec compliance Directive 2014/30/CE on Electromagnetic
Compatibility EMC
Directive 2011/65/EU one ther Restriction of the use of Hazardous Substances in electrical and electronic equipment (RoHS)
Regulation (EC) N° 552/2004 on Interoperability of the European Air Traffic Management Network
Directive 2006/95/CE on Voltage Limits
sarps compliance ACARS physical layer functionality, according to ARINC 618
VDL2 physical layer functionality, according to ICAO SARPS annex 10, ICAO Manual on VHF Digital Link (VDL) Mode 2 Technical Specifications, ETSI EN 301 841-1 and ARINC 631.
vhf data output formats Raw Datalink data (UPX* format)
I/Q data for RF analysis (optional)
DIMENSIONS 2U 19 inch rack mounting
482.6 mm wide, 88.14 mm high
350 mm deep
Supply Voltage 100V/220V - 50/60 Hz
Power Consumption Max 300W (25°C)
Temperature Range -40°C to 70°C
Humidity Range 10% to 90% RH, non-condensing
Cooling System Upper side: Fanholes & internal CPU cooler
Rear side: Case fan
full - duplex operation Enables reception and transmission of ACARS & VDL2 data
operating frequency range 118 MHz - 137 MHz
frequency accuracy < 2.5 ppm
sensitivity < -130 dBm (with uncorrected BER < 10-3)
modulation VDL2: D8PSK
receiver dynamic range 100 dBm
transmitter output power < -130 dBm (with uncorrected BER < 10-3)
adjacent channel rejection ACARS: ≥ 60 dB
VDL: ≥ 44 dB
symbol rate 10.5 ksym/s (VDL2)
bit rate 31.5 kb/s (VDL2), 2.4 kb/s (ACARS)
channel spacing 25 kHz