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       About AAI     CSR Initiatives     Passengers Public information     Vigilance    Financial AAI Employees     AAI News     All Airports    Others    FREQUENTLY ASKED QUESIONS CARGO   CNS   ENGINEERING   FIRE   GAGAN   GENERAL   SECURITYVIGILANCE   Communication, Navigation and Surveillance  1. What is CNS? Communication, Navigation and Surveillance are three main functions (domains) which constitute the foundation of Air Traffic Management (ATM) infrastructure. The following provide further details about relevant domains of CNS: (a) Communication:- Communication is the exchange of voice and data information between the pilot and air traffic controllers or flight information centres. (b)   Navigation:-  Navigation Element Of CNS/ATM Systems Is meant To provide Accurate, Reliable And Seamless Position Determination Capability to aircrafts. (c)   Surveillance:-  The surveillance systems can be divided into two main types:- Dependent surveillance and Independent surveillance. In dependent surveillance systems, aircraft position is determined on board and then transmitted to ATC. The current voice position reporting is a dependent surveillance systems in which the position of the aircraft is determined from on-board navigation equipment and then conveyed by the pilot to ATC. Independent surveillance is a system which measures aircraft position from the ground. Current surveillance is either based on voice position reporting or based on radar (primary surveillance radar (PSR) or secondary surveillance radar (SSR)) which measures range and azimuth of aircraft from the ground station. 2. What is CNS/ATM system?  CNS/ATM stands for Communications, Navigation and Surveillance Systems for Air Traffic Management. The system uses various systems including satellite systems, and varying levels of automation to achieve a seamless global Air Traffic Management system. 3. Who is responsible for making regulations, procedures and issuing directions covering the Aeronautical Telecommunication facilities (I.e. CNS/ATM Automation facilities) in India?  The DGCA (Web site ? is the designated agency of Govt. of India under the Ministry of Civil Aviation for making regulations, procedures and issuing directions covering the  Aeronautical Telecommunication facilities (I.e. CNS/ATM Automation facilities) . Their instructions are to be complied with both by the Air  Navigation Service Provider (ANSPs), airlines and the airports. 4. Where one can find information about regulatory requirements like Civil Aviation Requirements (CARs) etc. about Aeronautical Telecommunication facilities (I.e. CNS/ATM Automation facilities) in India?  The information is available on DGCA Web site ?dg 5. Who is responsible for providing Aeronautical Telecommunication facilities (CNS/ATM facilities/Infrastructure) in India?  Airports Authority of India (AAI) is responsible for providing CNS/ATM services in India. 6. Who looks after the Aeronautical Telecommunication facilities (I.e. CNS/ATM Automation systems) infrastructure in AAI? The Departments of CNS acts as the nodal agency in AAI to carry out its designated functions of looking after  Aeronautical Telecommunication facilities (I.e. CNS/ATM  Automation systems) in AAI. TOP   7. What are the different CNS Departments in AAI?  CNS Departments in AAI are:- (a) CNS-Operation and Maintenance ( CNS- O&M) (b) CNS- Planning (CNS- P) (c) Flight Inspection Unit & Radio construction and Development Units ( FIU & RCDU) 8. What are the functions/job profiles of the Dte. of CNS-OM in AAI? Directorate of CNS-Operation & Maintenance [CNS-OM] at CHQ is headed by Executive Director [CNS-OM]. ED [CNS-OM] reports to Member [ANS]. Broad functions/job profile of CNS-OM Department is as given below:  1. The Communication, Navigation, Surveillance and ATM Data Processing systems are the backbone for provision of Air Traffic Services for safe and smooth operation of Aircraft at Airports and in Indian airspace. CNS-OM Directorate ensures provision of these facilities for their serviceability, reliability and integrity as per Standard and Recommended practices of ICAO, Civil Aviation Requirements (CARs) promulgated by DGCA, to support CNS/ATM system for continental and Oceanic airspace managed by India as mentioned above. CNS-OM Dept also have the responsibility for maintenance and operation of security systems (i.e. CCTV, XBIS, DFMD, HHMD, ETD etc.)_and passenger facilitation system (i.e Flight Information Display system, PA system etc.) installed at all the airports which are managed by AAI. The security systems are maintained as per BCAS guidelines. 2. CNS-OM Dept by framing maintenance policies and supervision systems delivers system management, maintenance standards/instructions and maintenance services to assure and ensure Serviceability, Availability and Reliability of systems as mentioned above. 3. Provision of Aeronautical Mobile Services, Aeronautical Fixed Telecommunication Network, VOLMET, Pre Flight Com Briefing and International Notam Offices 4. Provision of Telecom infrastructure (Datacom, Telephones, Fax & Mobile etc.) to various AAI Units for operational and administrative requirements. 5. Other main functions of CNS- OM Dept are :- 5.1 Management of CNS Human Resources including:- Deployment Training Placement Proficiency 5.2 Coordination with DGCA/ICAO for issue related to CNS and amendment to ICAO Annex/documents related to CNS. 5.3 Coordination with National Regulator, WPC and ICAO for Civil  Aviation Frequency requirements/Protection. 5.4 CNS Standardization & Procedures 5.5 Preparing replacement and up gradation proposal of CNS and  ATM Data processing system. 5.6 Implementation of Safety Management System (SMS) related to CNS and Automation facilities. 5.7 Disposal of obsolete CNS facilities proposal received at CHQ from filed stations. 6. CNS-OM Dept is further divided into following five sections: i) A & S (Automation & Surveillance) ii) N&CMC (Navigation & Central Maintenance Cell) iii) COM (Communication) iv) CRSD (Central Radio Stores Depot) v) FTI (Future Telecommunication Infrastructure)

Chapt 11

Jul 23, 2017
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