The DHMİ Electronics Department is the main supporter of the Air Navigation Department in providing Civil Air Navigation Services for Turkey. The DHMİ Electronics Department is responsible for the following tasks:

* to provide and install navigation aids, radar systems, communication systems, terminal systems and computer systems related to Flight Safety and to provide continuity of these systems,

* to formulate the projects and technical specifications of the required electronic systems and equipment; to prepare the periodic overhaul and maintenance plans of existing systems; to perform and monitor these plans,

* to define the software requirements of DHMİ’s computer systems and analyze these systems,

* to set up a ground team to work on the flight control of the Navigation, Radar and Communication systems

* to renew, repair, calibrate and modify the systems and test equipment that cannot be repaired in the airports and Navigation Aid Stations of the airports; to provide necessary stand-by equipment, test equipment and documentation; to plan and perform domestic and international training related to these services; to follow the latest technological advances in order to provide a better service and to implement these improvements,

* to follow the studies of international aviation institutions (ICAO, EUROCONTROL, ECAC, etc.), to coordinate and cooperate with the related units to perform the prepared and approved plans in time; to draw up plans and programs when needed.


Turkey has attained the capability to provide an uninterrupted service utilizing complementary VSAT and TDM networks.

DHMİ endeavors to provide a 24-hour uninterrupted service within international tolerances. The security and continuity of all Communication and Navigation Aid Devices/Systems which are used in ATM management in Turkish airspace and airports are supervised by international organizations (ICAO, ECAC, EUROCONTROL, FAA etc.).

The control and determination of the international organizations regulate the level of compliance of Turkey. These have a direct affect on tourism, trade, external affairs and the revenue of Turkey and define the class and category of Turkish Civil Aviation Flight, Passenger Security and Safety. Thereby, Air/Ground Communication and an uninterrupted flow of radar data are of vital importance.

Besides, a backup circuit utilizing satellite channels (VSAT) for every station is in place, working in parallel to the TDM communication environment (continental circuit). This links the Air/Ground Transceivers of the stations and radars to the Air Traffic Control Centers. The aim of this backup circuit is to ensure an uninterrupted, reliable, qualified voice and data communication network between the ACC/APP and Air / Ground communication facilities / radar stations within Turkey.

On the other hand, DHMİ is going to renew the AFTN / CIDIN Sytems, and it will be include a gateway to adapt AFTN (Aeronautical Fixed Telecommunications Network) to AMHS (Aeronautical Message Handling System)

Every year DHMİ replaces the Air / Ground radio equipment which is compatible with the current technologies. DHMİ completed the all Air / Ground radio equipment calibration and on the job training.

• DHMİ and Turk Telecommunication Authority are working together on the certification of radio equipments which have no electromagnetic effect on human health.

• DHMİ established a new station to improve Air / Ground communication coverage.

DHMİ purchased a COSPAS-SARSAT Search and Rescue System from EMS Company /CANADA.

COSPAS - SARSAT system consists of LEOLUT(Low Earth Orbit Local User Terminal), GEOLUT(Geo-senkron Local User Terminal), RCC(Rescue Coordination Centre) and MCC (Mission Control Centre) units.


Two LEOLUTs and one GEOLUT were installed in Ankara in April 2005. All three LUTs were successfully commissioned and the results of the tests were presented to COSPAS SARSAT Secretariat at the 19th Joint Committee Meeting. In parallel, the letter of notification of association with COSPAS-SARSAT was signed in May 2005 and submitted to ICAO. Turkey’s association to the COSPAS-SARSAT Programme became effective on 11th June 2005. The commissioning tests of the TRMCC (Turkey MCC) were successfully carried out between 19th and 22nd September 2005
with the participation of the FMCC (France MCC) and ITMCC (Italy MCC ). The FMCC has declared IOC status of the TRMCC on 6th October 2005 and thus the TRMCC has started to carry out its responsibilities in the TRMCC service area. The Secretariat has distributed respective tab - delimited electronic files of the TRMCC service area and revised ITMCC service area.

The commissioning of the TRMCC has been processed on the basis of COSPAS - SARSAT rules and procedures with a view to obtaining FOC (Full Operational Capability) status by the end of 2005. Subsequently, TRMCC obtained FOC status on 17th January 2006 in the same service area as at IOC status. Moreover, TRMCC has also successfully completed communication link tests with its SPOCs (SAR Point of Contact) (Afghanistan, Iran, and Iraq) and, as decided, the full responsibility in this regard was transferred to TRMCC as of
1st June 2006.


* The factory acceptance and the preparations for the infrastructure works of the 13 VOR Systems and 14 DME Systems have been completed. DHMİ technical staff were completed the related technical training at abroad. Installation of the Systems has begun in 2007 and still continues. However, some parts of the system are in service.

* 18 DME Systems to collocate with VOR and ILS Systems, 5 ILS Systems (2 for Esenboğa Airport, 1 for Adnan Menderes Airport,1 for Hatay Airport and 1 for Şanlıurfa/GAP Airport) and 13 VOR Systems have been purchased.

* The installation of the Antalya Airport’s DVOR finished and has been given to service.

* The ILS System for Malatya Airport has been given to service.

* The installation of ILS Systems for Sivas, Gaziantep and Diyarbakır Airports have been completed and given to service.

* Technical service and support has been given by the technical staff of Electronics Department for the installation and maintainance of the navigation aids stations in Turkey,

* Regulation for certification and licencing of Air Traffic Safety Electronics Personnel has come into force.



SMART Project was developed for the procurement and the deployment of ATC infrastructure requirements of Turkey for the next 20 years with the assistance of EUROCONTROL SIS Unit. This project is in progress.


• On 19th September 2006, a contract was signed between DHMİ and Selex-İçtaş Consortium. Studies were started on 26th September 2006 by the delivery of Ankara ACC site. SMART Project will be completed at the end of 2009.

• Systems will be under responsibility of Selex until 2012.


DHMİ, as the ATS provider of Turkey, decided to modernise the ATM systems for more;
* Capacity
* Safety
* Efficiency
* Future CNS Strategies Satisfaction


* Single Ankara ACC
* Open System (Asterix)
* All Hardware Linux Based
* Contingency
* Network
* Capacity Expansion


• In the frame of SMART Project, following systems and functions will be procured;

* Radar Data Processing System (SDPS)
* Flight Data Processing System (FDPS)
* Safety Nets
* Human Machine Interface (HMI)
* Recording / Playback, Data Analysis (Rec / Plb)
* Controller Working Positions (CWP)
* Wide Area Network (WAN)
* Voice Communication Systems (VCS)


• It is aimed to modernise the current air traffic control infrastructure according to present air traffic capacity requirements at Esenboğa, Atatürk, A.Menderes and Dalaman Airports until the SMART Project is fully realised.

• In this scope; systems are modernised and provisional acceptance tests are going on at all sites. Transition to the new interim systems are expected to be by the year 2008.

• Furthermore according to contract, SMART Systems installed to new Antalya APP building. New TRNC (Turkish Republic of Northern Cyprus) Ercan building is almost finished. SMART Systems at Ercan Airport will be completed in 2008.


• In this concept; it is intended to install the new Ankara ACC/APP ATC systems at a new building that will be constructed in Ankara. As a result of this, whole Turkish Airspace will be controlled by the new Ankara ACC only.

The following new ACC/APP buildings are almost constructed;

• Ankara ACC/APP building (41,000m2)

• Adnan Menderes APP building (6,300m2)
• Dalaman APP building (2,700m2)
• Ercan ACC/APP/TWR building (6,700m2 )

Atatürk APP building (700 m2)is still under construction and it is expected that all ACC/APP buildings will be finished by the year 2008.



By this project, most of the present radars used at current air traffic services will be replaced by MODE-S radars and some additional radars will be located to necessary places.

By this configuration, all of the Turkish Airspace will be covered by at least three state of the art Mode-S radars.

Tender is published and proposals are received in 2007 and evaluation studies still continue.

In this scope; current 11 (including TRNC Ercan) sites (11 SSR, 3 PSR) and 8 additional sites (1 APP, 7 SSR, 2 PSR) will be procured.


As a part of SMART Project, three A-SMGCS (Advanced-Surface Movement Guidance and Control System) will be procured for Esenboğa, Atatürk and Antalya Airports.

Tender preparation is going on and tender publication will be done in 2008.