What is RTR (A) Examination

RTR (A) license is used by Air Crew and Engineers to use the wireless communication with Air Traffic Control team or ground station. In India WIRELESS PLANNING & COORDINATION (WPC) Wing of the Ministry of Communications, created in 1952, is the National Radio Regulatory Authority responsible for Frequency Spectrum Management, including licensing and caters for the needs of all wireless users (Government and Private) in the country. It exercises the statutory functions of the Central Government and issues licenses to establish, maintain and operate wireless stations.

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  • All new users are required to Register  and Login at the site to start the online application submission process.

  • After logging in, users will be directed to the “apply page” where the process begins by  uploading images using a  wizard. This wizard takes you through a series of steps where it is required to fill up the information.

  • The  application wizard is categorized into Image upload, Applicant detail, Demand Draft Detail, Physical description, RTR Reference sections etc.

  • After submitting the application successfully, a page will appear on your screen acknowledging that your application has been successfully submitted and contain your Application ID. A “View/print Acknowledgement card”  button/link is provided to open acknowledgement card.Users should open & print this page and send a copy along with Supporting Documents.

  • The filed application can be viewed by clicking on Filed Applications link after logging to the site. Status of your application and result will be displayed.

  • You may download your Admit Card  by clicking Admit Card link after application is received at RLO and verified.

  • You may view Result by clicking Result link after declaration of result.

  •  Before applying online kindly keep the following items ready/ handy




The examination will consist of the following two parts:-

Part-I – Practical test in Regulations and Procedure – 100 Marks

            A practical test will be conducted over a synthetic R/T circuit.  Candidates will be required to use phonetic alphabets and general procedure for radio telephone working.  Candidates will be required to carry out communications associated with mobile and/or base stations.  Typical examples of what the candidates are expected to carry out are: Preparation of messages for transmission, exchange of traffic, use of priorities requesting D/F assistance, obtaining meteorological information, position reports, distress urgency, safety and D/F procedure.

Part-II – Oral examination in —- 100 marks

  • Regulations and Procedure

  • Radio Principles and Practice




 (A)  Regulations and Procedure:  Shall cover the following:

[International Telecommunication Convention & Radio Regulations

  • General and Aeronautical ‘Q’ Code Signals and other abbreviations as contained in Annexure 10 (Vol.I & II) of International Civil Aviation

  • General Radio telephone Communication procedures and radio telephone communication procedure for distress urgency and direction finding.

  • Procedures for distress communication in Maritime Mobile Service.

  • Words and figures spelling used in radio telephone.

  • Licensing requirements of installation and operation of radio apparatus used in aircraft.

  • Minimum requirement of radio equipment to be carried on aircraft as prescribed in Annexure 6 of the International Civil Aviation Organisation and Civil Aviation Authority in India.

  • Flight Information Regions in India and main Radio Communication and Navigation facilities available together with principal frequencies to be used for communication and navigation within India.

  • Meteorological codes, pre-flight briefing services and their usages.

  • Knowledge of notices to airmen issued by the Civil Aviation Authorities in India as applicable to the Aeronautical mobile and Air traffic Control Services.

Radio Principles & Practice:-

Candidates will be required to have knowledge of Electrical Units such as Volt, Ampere, Ohm and Watt; Wavelength, frequency and their relationship; Elementary knowledge of radio frequency propagation, and night frequencies, skip distances, fading, ground shadow and its effect on communication, choice of frequencies to attain maximum efficiency in handling air ground HF Communications.

            General knowledge of systems employed for air-ground communications including SELCAL operation, inter-communication and announcing systems of aircraft; elementary knowledge of Radio-navigation Aids, operation of microphones and headphones, Squelch, AVC, Volume control, tuning of transmitter, simplex and duplex operation; advantages and disadvantages of Radio telephone communication; limitations of range due to frequency interference etc.

Note:  (i)The maximum marks in each Part I and II is 100 and minimum pass is 50 in individual parts.  Candidates who do not qualify in Part I will be considered failed in the R/T examination.

(ii )   Reference for study (limited to Aeromobile service requirements and allied  regulatory matters).

There are many books which cover various aspects of the syllabus; a brief selection which is given below is for guidance:

A. ICAO Publications:-

  1. Annexure – 10 Vol. I & II.

  2.  DOC 4444 – Procedure of Air Navigation Service (PANS) and Air Traffic Management (ATM)

  3.  DOC 9432 – Manual of Radio Telephony.

  4.  DOC 8400 – Abbreviations and codes.

 B.  AAI/DGCA Publications:-

  1.  Aeronautical Information Publication (AIP).

    Suitable book(s) for Radio Communication Principles. Many books are available on this subject.  The amateur Radio Relay league handbook may be useful for basic radio understanding.





  1. Engineer-in-Charge (SRHQ), Southern Regional Headquarters, International Monitoring Station, Perungudi, Chennai-600096. (Tele.No.: 044 -24960234/ 24960979 FAX 044 – 24960235)

  1. Director (Wireless Monitoring), Monitoring Organisation, E-Wing, III Floor, Pushp Bhavan, Madangir Road, New Delhi-110062. (Tel.: 011 – 2905 4618, 2905 1005 )

  1. Indian Airlines Limited, Operational Department, Santacruz Airport, Ville Parle (East)  Mumbai – 400009.

  1. Sea Com Marine College, 11 Kendua Main Road, Kolkata -700 004

  1. AP Aviation Academy , Hyderabad Old air port , Hyderabad-500 011

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