Publication: Magyar Közlöny
Issue: MK-2007-70 (Year: 2007, Number: 70)
Era: 2004-2010
Section: Melléklet a 2007. évi XLVI. törvényhez
Paragraph Index: 3094

b) reduction of power output to less than 50 per cent of normal. 3.1.7.7.2 Recommendation For each mar er beacon suitable monitoring e uipment should be provided which will indicate at the appropriate location a decrease of the modulation depth below per cent 3 2 Specification for precision approac radar system Note Slant distances are used throughout this specification 3.2.1 The precision approach radar system shall comprise the following elements: 3.2.1.1 The precision approach radar element (PAR). 3.2.1.2 The surveillance radar element (SRE). 3.2.2 When the PAR only is used, the installation shall be identified by the term PAR or precision approach radar and not by the term “precision approach radar system”. Note Provisions for the recording and retention of radar data are contained in Annex Chapter 3.2.3 The precision approach radar element (PAR) 3.2.3.1 Coverage 3.2.3.1.1 The PAR shall be capable of detecting and indicating the position of an aircraft of 15 m2 echoing area or larger, which is within a space bounded by a 20-degree azimuth sector and a 7-degree elevation sector, to a distance of at least 16.7 km (9 NM) from its respective antenna. 2007/70/II. szám Annex 10 — Aeronautical Communications Volume I 23/11/06 3 26 Note For guidance in determining the significance of the echoing areas of aircraft the following table is included private flyer (single engined) 5 to 10 m2; small twin engined aircraft from 15 m2; medium twin engined aircraft from 25 m2; four engined aircraft from 50 to 100 m2. 3.2.3.2 Siting 3.2.3.2.1 The PAR shall be sited and adjusted so that it gives complete coverage of a sector with its apex at a point 150 m (500 ft) from the touchdown in the direction of the stop end of the runway and extending plus or minus 5 degrees about the runway centre line in azimuth and from minus 1 degree to plus 6 degrees in elevation. Note Paragraph can be met by siting the e uipment with a set bac from the touchdown in the direction of the stop end of the runway of m ( ft) or more for an offset of m ( ft) from the runway centre line or of m ( ft) or more for an offset of m ( ft) when the e uipment is aligned to scan plus or minus degrees about the centre line of the runway Alternatively if the e uipment is aligned to scan degrees to one side and degrees to the other side of the centre line of the runway then the minimum set bac can be reduced to m ( ft) and m ( ft) for offsets of m ( ft) and m ( ft) respectively Note Diagrams illustrating the siting of PAR are given in Attachment C (Figures C to C inclusive) 3.2.3.3 Accuracy 3.2.3.3.1 A imuth accuracy Azimuth information shall be displayed in such a manner that left-right deviation from the on-course line shall be easily observable. The maximum permissible error with respect to the deviation from the on-course line shall be either 0.6 per cent of the distance from the PAR antenna plus 10 per cent of the deviation from the on-course line or 9 m (30 ft), whichever is greater. The equipment shall be so sited that the error at the touchdown shall not exceed 9 m (30 ft). The equipment shall be so aligned and adjusted that the displayed error at the touchdown shall be a minimum and shall not exceed 0.3 per cent of the distance from the PAR antenna or 4.5 m (15 ft), whichever is greater. It shall be possible to resolve the positions of two aircraft which are at 1.2 degrees in azimuth of one another. 3.2.3.3.2 Elevation accuracy Elevation information shall be displayed in such a manner that up-down deviation from the descent path for which the equipment is set shall be easily observable. The maximum permissible error with respect to the deviation from the on-course line shall be 0.4 per cent of the distance from the PAR antenna plus 10 per cent of the actual linear displacement from the chosen descent path or 6 m (20 ft), whichever is greater. The equipment shall be so sited that the error at the touchdown shall not exceed 6 m (20 ft). The equipment shall be so aligned and adjusted that the displayed error at the touchdown shall be a minimum and shall not exceed 0.2 per cent of the distance from the PAR antenna or 3 m (10 ft), whichever is greater. It shall be possible to resolve the positions of two aircraft that are at 0.6 degree in elevation of one another. 3.2.3.3.3 Distance accuracy The error in indication of the distance from the touchdown shall not exceed 30 m (100 ft) plus 3 per cent of the distance from the touchdown. It shall be possible to resolve the positions of two aircraft which are at 120 m (400 ft) of one another on the same azimuth. 3.2.3.4 Information shall be made available to permit the position of the controlled aircraft to be established with respect to other aircraft and obstructions. Indications shall also permit appreciation of ground speed and rate of departure from or approach to the desired flight path. 3.2.3.5 Information shall be completely renewed at least once every second. 2007/70/II. szám C a ter Annex 10 — Aeronautical Communications 3 2 23/11/06 3.2.4 The surveillance radar element (SRE) 3.2.4.1 A surveillance radar used as the SRE of a precision approach radar system shall satisfy at least the following broad performance requirements. 3.2.4.2 Coverage 3.2.4.2.1 The SRE shall be capable of detecting aircraft of 15 m2 echoing area and larger, which are in line of sight of the antenna within a volume described as follows: The rotation through 360 degrees about the antenna of a vertical plane surface bounded by a line at an angle of 1.5 degrees above the horizontal plane of the antenna, extending from the antenna to 37 km (20 NM); by a vertical line at 37 km (20 NM) from the intersection with the 1.5-degree line up to 2 400 m (8 000 ft) above the level of the antenna; by a horizontal line at 2 400 m (8 000 ft) from 37 km (20 NM) back towards the antenna to the intersection with a line from the antenna at 20 degrees above the horizontal plane of the antenna, and by a 20-degree line from the intersection with the 2 400 m (8 000 ft) line to the antenna. 3.2.4.2.2 Recommendation Efforts should be made in development to increase the coverage on an aircraft of m echoing area to at least the volume obtained by amending with the following substitutions — for degrees, read degree; — for m ( NM), read m ( NM); — for m ( ft), read m ( ft); — for degrees, read degrees. Note A diagram illustrating the vertical coverage of SRE is given in Attachment C (Figure C ) 3.2.4.3 Accuracy 3.2.4.3.1 A imuth accuracy The indication of position in azimuth shall be within plus or minus 2 degrees of the true position. It shall be possible to resolve the positions of two aircraft which are at 4 degrees of azimuth of one another. 3.2.4.3.2 Distance accuracy The error in distance indication shall not exceed 5 per cent of true distance or 150 m (500 ft), whichever is the greater. It shall be possible to resolve the positions of two aircraft that are separated by a distance of 1 per cent of the true distance from the point of observation or 230 m (750 ft), whichever is the greater. 3.2.4.3.2.1 Recommendation The error in distance indication should not exceed per cent of the true distance or m ( ft) whichever is the greater 3.2.4.4 The equipment shall be capable of completely renewing the information concerning the distance and azimuth of any aircraft within the coverage of the equipment at least once every 4 seconds. 3.2.4.5 Recommendation Efforts should be made to reduce as far as possible the disturbance caused by ground echoes or echoes from clouds and precipitation 2007/70/II. szám Annex 10 — Aeronautical Communications Volume I 23/11/06 3 2 3 3 Specification for HF omnidirectional radio range OR 3.3.1 General 3.3.1.1 The VOR shall be constructed and adjusted so that similar instrumental indications in aircraft represent equal clockwise angular deviations (bearings), degree for degree from magnetic North as measured from the location of the VOR. 3.3.1.2 The VOR shall radiate a radio frequency carrier with which are associated two separate 30 Hz modulations. One of these modulations shall be such that its phase is independent of the azimuth of the point of observation (reference phase). The other modulation (variable phase) shall be such that its phase at the point of observation differs from that of the reference phase by an angle equal to the bearing of the point of observation with respect to the VOR. 3.3.1.3 The reference and variable phase modulations shall be in phase along the reference meridian through the station. Note The reference and variable phase modulations are in phase when the maximum value of the sum of the radio fre uency carrier and the sideband energy due to the variable phase modulation occurs at the same time as the highest instantaneous fre uency of the reference phase modulation 3.3.2 Radio frequency 3.3.2.1 The VOR shall operate in the band 111.975 MHz to 117.975 MHz except that frequencies in the band 108 MHz to 111.975 MHz may be used when, in accordance with the provisions of Volume V, Chapter 4, 4.2.1 and 4.2.3.1, the use of such frequencies is acceptable. The highest assignable frequency shall be 117.950 MHz. The channel separation shall be in increments of 50 kHz referred to the highest assignable frequency. In areas where 100 kHz or 200 kHz channel spacing is in general use, the frequency tolerance of the radio frequency carrier shall be plus or minus 0.005 per cent. 3.3.2.2 The frequency tolerance of the radio frequency carrier of all new installations implemented after 23 May 1974 in areas where 50 kHz channel spacing is in use shall be plus or minus 0.002 per cent. 3.3.2.3 In areas where new VOR installations are implemented and are assigned frequencies spaced at 50 kHz from existing VORs in the same area, priority shall be given to ensuring that the frequency tolerance of the radio frequency carrier of the existing VORs is reduced to plus or minus 0.002 per cent. 3.3.3 Polarization and pattern accuracy 3.3.3.1 The emission from the VOR shall be horizontally polarized. The vertically polarized component of the radiation shall be as small as possible. Note It is not possible at present to state uantitatively the maximum permissible magnitude of the vertically polari ed component of the radiation from the R (Information is provided in the Manual on Testing of Radio Navigation Aids (Doc ) as to flight chec s that can be carried out to determine the effects of vertical polari ation on the bearing accuracy ) 3.3.3.2 The accuracy of the bearing information conveyed by the horizontally polarized radiation from the VOR at a distance of approximately four wavelengths for all elevation angles between 0 and 40 degrees, measured from the centre of the VOR antenna system, shall be within plus or minus 2 degrees. 2007/70/II. szám C a ter Annex 10 — Aeronautical Communications 3 2 23/11/06 3.3.4 Coverage 3.3.4.1 The VOR shall provide signals such as to permit satisfactory operation of a typical aircraft installation at the levels and distances required for operational reasons, and up to an elevation angle of 40 degrees. 3.3.4.2 Recommendation The field strength or power density in space of R signals re uired to permit satisfactory operation of a typical aircraft installation at the minimum service level at the maximum specified service radius should be microvolts per metre or minus d m Note Typical effective radiated powers (ERPs) to achieve specified ranges are contained in of Attachment C 3.3.5 Modulations of navigation signals 3.3.5.1 The radio frequency carrier as observed at any point in space shall be amplitude modulated by two signals as follows:

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