ENR 1.6  RADAR SERVICES AND PROCEDURES

1.   OPERATION (PSR/SSR)

1.1   Supplementary services
1.1.1   Radar service is an integral part of the ATC system within Budapest FIR.

Budapest ACC and Budapest TRCC will normally use radar derived information in the provision of air traffic control services.

1.1.2   Within Budapest FIR radar service is provided by:
  1. BUDAPEST CONTROL for aircraft operating under Area Control;
  2. BUDAPEST APPROACH for aircraft operating within Budapest TMA;
  3. BUDAPEST DIRECTOR for arriving aircraft in Budapest TMA below 7500 feet altitude (as traffic conditions require).
  4. BUDAPEST FLIGHT INFORMATION may use radar derived information in the provision for flight information service between 4000 feet and 9500 feet altitude. Radar serves only as an aid to provide aircraft with more accurate flight information. It does not relieve the pilot-in-command of an aircraft of any of his responsibilities and he has to make the final decision regarding any suggested alternation of flight plan.

For more details See ENR 2.1

1.1.3   Communication

The following R/T procedures shall be applied by aircraft operating under radar control within Budapest FIR

  1. The initial call after a change of radio frequency shall contain only:
    • aircraft call sign;
    • actual level (with the addition of cleared level for climbing or descending aircraft).
  2. Any position report (if required) subsequently shall contain only:
    • aircraft call sign;
    • position;
    • time over (fix)
  3. Aircraft being identified after entering controlled airspace are exempted the requirement of subsequent position reporting. Pilots of aircraft shall resume position reporting when:
    • it is instructed by ATC; or
    • crossing the FIR boundary; or
    • are advised that radar service terminated or radar contact lost.

Note: The requirement to report receipt of ATIS broadcast at first contact on 129,700 MHz (APP) when entering Budapest TMA and on 134,550 MHz (Budapest Delivery) before starting up engines by reading back the relevant designator of information and actual QNH is not affected by the above procedure.

1.2   Application of radar control service
1.2.1  Radar control service is applied in accordance with the provisions of ICAO Doc 4444 - ATM/501 Chapter 8. ATS Surveillance Services.
1.2.2  Radar control service is provided in controlled airspace to aircraft operating within Budapest TMA and Budapest CTA.
1.2.3  Radar identification is achieved according to the provisions specified by ICAO, using the phrase: “IDENTIFIED” or “RADAR CONTACT” which may be followed by any instruction as necessary.
1.2.4  The applicable horizontal radar separation minima:
  • Budapest CTA (Budapest ACC): 5NM
  • Budapest TMA (Budapest TRCC): 3NM
1.2.5  Dependent parallel approach procedures are applied at Budapest Liszt Ferenc International Airport.
1.2.6  Levels assigned by radar controller to pilots will provide a minimum terrain clearance according to the phase of flight.
1.3   Radar and radio failure procedures
1.3.1   Radar failure

In the event of radar failure or loss of radar identity of an aircraft under radar control will be advised immediately of the interruption or termination of radar control and as an emergency measure reduced vertical separation (500 feet at/or below FL410 and 1000 feet above FL410) may be resorted to as necessary until standard non-radar separation can be provided or radar control is resumed.

1.3.2   Radio communication failure

In the case of complete aircraft communication failure the pilot shall carry out the procedures detailed in PANS ATM (ICAO Doc 4444) Chapter 15, paragraph 15.3.

1.4   Radar coverage
  1. Budapest ACC

    Radar data from 2 radar stations which are equipped with both primary and secondary radars will be used.

    Position in WGS-84Püspökladány
    (Budapest - East Radar)
    472122.90N 0210239.06E
    Kőrishegy
    (Budapest - West Radar)
    471738.96N 0174512.89E
    RangeRSR160NM160NM
    SSR200NM200NM
  2. Budapest TRCC

    A TAR station of Budapest Liszt Ferenc International Airport is equipped with both primary and secondary radars.

    Position in WGS-84Budapest Liszt Ferenc International Airport
    (Budapest - Terminal Area Surveillance Radar)
    TAR1 - 472650.8091N 0191546.6990E
    TAR2 - 472517.4060N 0191812.3400E
    RangeTAR60NM
    SSR150NM

2.   Secondary Surveillance Radar (SSR)

2.1   General
2.1.1  All IFR flights and international VFR flights in Budapest FIR shall be carried out with operating SSR transponder.
2.1.2  Pilots of aircraft equipped with Mode “C” transponder shall operate this mode unless ATS units specifically direct otherwise.

Note: The tolerance value of level indications for ATS units is 300 feet. When a discrepancy is in excess of this tolerance value, the ATS units may request to stop Mode “C” transmission. If switching off Mode “C” transmission interrupts the operation of the transponder on Mode “A” as well, the relevant ATS unit shall be notified.

2.1.3  Except as provided for below, pilots shall operate transponders and select modes and codes in accordance with ATC instructions. Pilots who have already received specific instructions from ATC concerning the setting of the transponder shall, when entering Budapest FIR, maintain that setting until otherwise instructed.
2.1.4  Pilots who have not received specific instructions from ATC concerning the setting of the transponder, shall operate the transponder as stated in the following:
  • flights within controlled airspace Mode A/C, code 2000;
  • flights within uncontrolled airspace Mode A/C, code 7000.
2.1.5  After selection of mode, code the transponder should be switched ON as late as practicable prior to take-off and it should be switched OFF or STAND-BY as soon as practicable after landing, without waiting for instruction to do so.
2.2   Emergency procedures
2.2.1  If the pilot of an aircraft encountering a state of emergency has previously been instructed by ATC to operate the transponder on a specific Code, this Code setting usually shall be maintained until otherwise instructed. See para below.
2.2.2  Notwithstanding the procedure in para above a pilot may select Mode A/C, code 7700, whenever the nature of the emergency is such that this appears to be the most suitable course action.
2.3   Radio communication, transponder failure and unlawful interference procedures
2.3.1   Radio communication failure procedure

In the event of a radio communication failure, a pilot shall select Mode A/C, Code 7600 and follow established radio communication failure procedures. Subsequent control of the aircraft will be based on those procedures.

2.3.2   Transponder failure
  1. Prior to departure

    In cases where a transponder has failed and definitely cannot be restored prior to departure, permission to perform the flight without SSR must be obtained from the appropriate ATC unit before departure (See ENR 1.6 para 2.1.3)

    In such cases the letter “N” shall be inserted in item 10 of the ICAO flight plan.

  2. After departure

    In cases where a transponder failure occurs during flight pilots may expect that ATC units will endeavour to provide continuation of the flight to the aerodrome of first intended landing in accordance with the flight plan. After landing pilots shall make every effort to have the transponder restored to normal operation. If repair cannot be effected, pilots shall comply with the provisions in item a.) above.

2.3.3   Unlawful interference procedure

See ENR 1.13

2.4   System of SSR code assignment

SSR Codes will be assigned in accordance with the European Code Assignment Plan, which is based on the Origination Region Code Assignment Method (ORCAM).