Immediate and reliable identification of calling aircraft

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CERTIUM Locate, application image

Key facts

  • Enhances situational awareness to prevent call-sign confusion
  • Single direction finder at airport for directional information
  • Multiple direction finders for geolocation of calling aircraft
  • Calling aircraft are highlighted on a radar screen
  • Dedicated RDF clocks as a standalone solution for homing services

Improving overall safety and efficiency

A turnkey solution for automatically identifying calling aircraft on a radar screen

CERTIUM Locate with a single R&S® DF-ATC-S radio direction finder at an airport displays the approach of calling aircraft. It is mainly used for approach traffic to help air traffic controllers with quick and reliable aircraft identification. Upper area control uses multiple direction finders combined with a CERTIUM Locate server for precise geolocation of calling aircraft. This information is distributed to the air traffic controller radar displays. CERTIUM Locate is used by:

  • Small airports as a radar replacement system for homing services
  • Airports with radar systems for approach and aerodrome traffic 
  • Large airports and air traffic service providers to geolocate calling aircraft for increased efficiency and security
  • Emergency and rescue centers to locate the source of emergency calls

Features & benefits

Automatic identification of calling aircraft 

CERTIUM Locate highlights calling aircraft on a radar screen

The air traffic controller can easily detect and verify a call-sign ID on the radar screen. The direction of arrival or geolocation of an aircraft are calculated based on radio transmissions.

  • Helps air traffic controllers to automatically and quickly identify aircraft on a radar display
  • Increases situational awareness and minimizes call sign confusion
  • Detects very small aircraft or aircraft flying below radar and supports search and rescue efforts
  • Supports approach traffic handling with a single direction finder

Displays calling aircraft on map
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Displays calling aircraft on map

Scalable and expandable solution

Supports up to 32 frequency channels and covers large areas with multiple direction finders

Starting with a single direction finder at airports, the system can be scaled up to a multi-direction finder solution for secure en-route traffic control.

  • Scalable turnkey solution based on standard configurations
  • Simple integration into existing ATM systems
  • Sharing of results between area control centers and airports
  • Suppression of own radio transmissions

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Trusted partner

Professional partner throughout the entire lifecycle

Rohde & Schwarz is a trusted partner that supports customers through all project phases and ensures that objectives are met quickly and comprehensively. Professional service level agreements provide long-term service and support.

  • Customized design of turnkey solutions based on standard-compliant configurations
  • Supports Integration into existing ATM systems
  • One partner for the complete solution including installation, training and maintenance
  • Service level agreements for long-term support

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Available options


ATC direction finders


ATC location server

Related topics

Secure call-sign identification

Secure call-sign identification

Find out more about ATC direction finders for situational awareness and secure call-sign identification from Rohde & Schwarz.

More information

ATC location system

ATC location system

CERTIUM® LOCATE is a turnkey solution for locating calling aircraft. It enables immediate and reliable aircraft identification on the radar screen to increase situational awareness.

More information

ATC location system components

ATC location system components

Learn more about how does the ATC direction finder look like and which requirements it meets.

More information

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Manufacturer's recommended retail price (MSRP). The price shown does not include VAT. Prices and offers are only intended for entrepreneurs and not for private end consumers.

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1. The prize draw “10 years Rohde & Schwarz oscilloscopes” (herein referred to as “Draw”) is organized by Rohde & Schwarz GmbH & Co. KG, Mühldorfstraße 15, 81671 Munich, Germany, Tel. +49 89 41 29 0 (herein referred to as “R&S).

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