Publication: Magyar Közlöny
Issue: MK-2007-70 (Year: 2007, Number: 70)
Era: 2004-2010
Section: Melléklet a 2007. évi XLVI. törvényhez
Paragraph Index: 3064

b) 0.04 ș from ș for Facility Performance Category III — ILS glide paths. Note uidance material on adjustment and maintenance of glide path angles is given in of Attachment C Note uidance material on I S glide path curvature alignment and siting relevant to the selection of the height of the I S reference datum is given in of Attachment C and Figure C 3.1.5.1.3 The downward extended straight portion of the ILS glide path shall pass through the ILS reference datum at a height ensuring safe guidance over obstructions and also safe and efficient use of the runway served. 3.1.5.1.4 The height of the ILS reference datum for Facility Performance Categories II and III — ILS shall be 15 m (50 ft). A tolerance of plus 3 m (10 ft) is permitted. 3.1.5.1.5 Recommendation The height of the I S reference datum for Facility Performance Category I I S should be m ( ft) A tolerance of plus m ( ft) is permitted Note In arriving at the above height values for the I S reference datum a maximum vertical distance of m ( ft) between the path of the aircraft glide path antenna and the path of the lowest part of the wheels at the threshold was assumed For aircraft exceeding this criterion appropriate steps may have to be ta en either to maintain ade uate clearance at threshold or to adjust the permitted operating minima Note Appropriate guidance material is given in of Attachment C 3.1.5.1.6 Recommendation The height of the I S reference datum for Facility Performance Category I I S used on short precision approach runway codes and should be m ( ft) A tolerance of plus m ( ft) is permitted 3.1.5.2 Radio fre uency 3.1.5.2.1 The glide path equipment shall operate in the band 328.6 MHz to 335.4 MHz. Where a single radio frequency carrier is used, the frequency tolerance shall not exceed 0.005 per cent. Where two carrier glide path systems are used, the frequency tolerance shall not exceed 0.002 per cent and the nominal band occupied by the carriers shall be symmetrical about the assigned frequency. With all tolerances applied, the frequency separation between the carriers shall not be less than 4 kHz nor more than 32 kHz. 2007/70/II. szám Annex 10 — Aeronautical Communications Volume I 23/11/06 3 16 3.1.5.2.2 The emission from the glide path equipment shall be horizontally polarized. 3.1.5.2.3 For Facility Performance Category III — ILS glide path equipment, signals emanating from the transmitter shall contain no components which result in apparent glide path fluctuations of more than 0.02 DDM peak to peak in the frequency band 0.01 Hz to 10 Hz. 3.1.5.3 Coverage 3.1.5.3.1 The glide path equipment shall provide signals sufficient to allow satisfactory operation of a typical aircraft installation in sectors of 8 degrees in azimuth on each side of the centre line of the ILS glide path, to a distance of at least 18.5 km (10 NM) up to 1.75 ș and down to 0.45 ș above the horizontal or to such lower angle, down to 0.30 ș, as required to safeguard the promulgated glide path intercept procedure. 3.1.5.3.2 In order to provide the coverage for glide path performance specified in 3.1.5.3.1, the minimum field strength within this coverage sector shall be 400 microvolts per metre (minus 95 dBW/m2). For Facility Performance Category I glide paths, this field strength shall be provided down to a height of 30 m (100 ft) above the horizontal plane containing the threshold. For Facility Performance Categories II and III glide paths, this field strength shall be provided down to a height of 15 m (50 ft) above the horizontal plane containing the threshold. Note The re uirements in the foregoing paragraphs are based on the assumption that the aircraft is heading directly toward the facility Note uidance material on significant airborne receiver parameters is given in of Attachment C Note Material concerning reduction in coverage outside degrees on each side of the centre line of the I S glide path appears in of Attachment C 3.1.5.4 I S glide path structure 3.1.5.4.1 For Facility Performance Category I — ILS glide paths, bends in the glide path shall not have amplitudes which exceed the following: Amplitude (DDM) one ( probability) Outer limit of coverage to ILS Point “C” 0.035 3.1.5.4.2 For Facility Performance Categories II and III — ILS glide paths, bends in the glide path shall not have amplitudes which exceed the following: Amplitude (DDM) one ( probability) Outer limit of coverage to ILS Point “A” 0.035 ILS Point “A” to 0.035 at ILS Point “A” ILS Point “B” decreasing at a linear rate to 0.023 at ILS Point “B” ILS Point “B” to the ILS reference datum 0.023 2007/70/II. szám C a ter Annex 10 — Aeronautical Communications 3 1 23/11/06 Note The amplitudes referred to in and are the DDMs due to bends as reali ed on the mean I S glide path correctly adjusted Note In regions of the approach where I S glide path curvature is significant bend amplitudes are calculated from the mean curved path and not the downward extended straight line Note uidance material relevant to the I S glide path course structure is given in of Attachment C 3.1.5.5 Carrier modulation 3.1.5.5.1 The nominal depth of modulation of the radio frequency carrier due to each of the 90 Hz and 150 Hz tones shall be 40 per cent along the ILS glide path. The depth of modulation shall not deviate outside the limits of 37.5 per cent to 42.5 per cent. 3.1.5.5.2 The following tolerances shall be applied to the frequencies of the modulating tones:

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