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.

Cospas-Sarsat System is a Satellite Aided Search-Rescue System. Services are provided to our country since 2005 and affiliated with SPOC(SARPOINT of contact) search and rescue services are provided.

To add MEOSAR(Middle Altitude in Search and Rescue Satellite) System to the present Cospas-Sarsat system, a work was initiated.


* Purchased in 2007; 18 DME, 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 of technical training has been completed Installation of the Systems has begun in 2008 and still continues. However, most of the systems are in service.


* The installation of 5 ILS Systems for Hatay, Şanlıurfa/GAP, Adnan Menderes and 2 for Esenboğa Airports have been completed and given to service


* 15 DME Systems to collocate with VOR and ILS Systems, 8 ILS+1 Localizer Systems (2 for Esenboğa Airport, 2 for Erzurum Airport, 1 for Airport, 1 for Merzifon Airport and Antalya Airport (Loc) ) and 2 DVOR Systems (1 for Atatürk and 1 for Dalaman Airports) have been purchased. Installation of the Systems has begun and still continues.


* Construction of new VOR buildings in Erzincan\Vabel and Manisa\Kula has been completed. Recently VOR/DME Systems will be given to service.


* Technical service and support has been given by Licensed technical staff (ATSEP) of Electronics Department for the installation and maintenance of the navigation aids stations in Turkey,


SMART (Systematic Modernization of ATM Resources in Turkey) Project

1. New ATC Systems and Buildings for Ankara ACC/APP and Other APP Units:

In the scope of the SMART (Systematic Modernization of ATM Resources in Turkey) Project, which was signed at 19.09.2006 and comprising the replacement of the present ATC systems, the entire Turkish Airspace will be controlled from a single ACC, as is the case in some European ACCs in line with the Single European Sky; one Area Control Center and one FIR will be established instead of the two existing FIRs (Ankara and İstanbul Flight Information Regions). With this project, Turkish Area Control Service will be provided from the new Ankara ACC Building, whereas APP and TWR services will be served from İstanbul, Antalya, İzmir, Dalaman and Bodrum ATCs. In addition, TRNC (Turkish Republic of Northern Cyprus) Airspace will be controlled by Ercan ACC/APP and existing 6 ACC/APP units will be renovated with technical infrastructure and buildings.

In this way, old technology systems will be replaced according to new standards and will reach modern controller functions, thus increasing capacity. The ACC and APP centers will, in contingency cases, support each other by means of voice and radar data network, namely VSAT and TDM. By means of this configuration, our national air traffic control technical infrastructure will reach a new configuration that only a few countries have, and which will increase capacity and safety to such levels to meet the needs for the next 20-30 years.

Existing ATM systems are in the meantime upgraded at Atatürk, Esenboğa, A. Menderes, Dalaman ATC, with the Interim Modernization Project to take into account the current air traffic capacity needs, until the new airspace is re-structured under the SMART Project. Provisional acceptance of the Interim Modernization Project was done at 04.12.2008.

The installation of the ATC systems has started at the newly constructed Air Traffic Control Centers at Ankara, İzmir and Dalaman. ATC system provisional acceptance work is continuing at Antalya and TRNC Ercan ACC/APP who are not part of the Interim Modernisation Project. İstanbul APP and TWR constructions are expected to be completed within the next few months.


2. 1. European AIS Database (EAD):

In this Project, modern Aeronautical Information Service (AIS) system is connected and integrated to the European AIS Database which is in progress stage.

We have entered this Project supported by EUROCONTROL as an Alpha Client country. Our systems have been integrated into the European AIS Database and currently we are working on the extension of the project to various airports with additional licensing. A Briefing Facility will be established as well this year.

3. 1. Replacement of The Existing Radars and Additional Requirements:

This Project includes the replacement of the existing radars which have been used for over 18 years and additional radars will be supplied to reduce the gap of coverage within the Turkish Airspace.

18 SSRs, 5 PSRs and 1 APP Office in Trabzon Airport are planned to be installed and constructed within this Project. MODE-S SSR and solid-state PSR were required, the budget of the project amounts to 38,500,000 € and a contract was signed with the Spanish company Indra Sistemas S.A. at 16.02.2009. The duration of the project is three years, the systems will be shipped in the last quarter of 2009 and their installation will start according to the work plan.

4. Procurement of Advanced–Surface Movement Guidance and Control System (A-SMGCS):

A-SMGCS facilitating the ground control on runway, taxiway and aprons with high density movements and reduced visual range during rainy and foggy days will be installed at Atatürk, Esenboğa and Antalya Airports. This Project's budget amounts to 7,899,900 € and its contract was signed with the Dutch firm HITT at 28.11.2008. The installation is planned to start in 2009.

5. Procurement of Bird Early Warning Radar Systems:

Bird Early Warning Radar Systems will be procured in 2009 in accordance with the Environmental Impact Assessment Report issued for Hatay Airport where an intensive bird migration road passes.