Publication: Magyar Közlöny
Issue: MK-2007-70 (Year: 2007, Number: 70)
Era: 2004-2010
Section: Melléklet a 2007. évi XLVI. törvényhez
Paragraph Index: 3356

d) there is an error in the TDM synchronization of a particular elevation function such that the requirement specified in 3.11.4.3.2 is not satisfied and this condition persists for more than one second. Note uidance material is provided in Attachment 3.11.5.3.3.2 Design and operation of the monitor system shall cause radiation to cease and a warning shall be provided at the designated control points in the event of failure of the monitor system itself. 3.11.5.3.3.3 The period during which erroneous guidance information is radiated, including period(s) of zero radiation, shall not exceed the periods specified in 3.11.5.3.3.1. Attempts to clear a fault by resetting the primary ground equipment or by switching to standby ground equipment shall be completed within this time. If the fault is not cleared within the time allowed, radiation shall cease. After shutdown, no attempt shall be made to restore service until a period of 20 seconds has elapsed. 3.11.5.3.4 Integrity and continuity of service re uirements for M S approach elevation 3.11.5.3.4.1 The probability of not radiating false guidance signals shall not be less than 1 0.5 10 9 in any one landing for an MLS approach elevation intended to be used for Categories II and III operations. 3.11.5.3.4.2 Recommendation The probability of not radiating false guidance signals should not be less than in any one landing on M S approach elevation intended to be used for Category I operations 3.11.5.3.4.3 The probability of not losing the radiated guidance signal shall be greater than 1 2 10 6 in any period of 15 seconds for an MLS approach elevation intended to be used for Categories II and III operations (equivalent to 2 000 hours mean time between outages). 3.11.5.3.4.4 Recommendation The probability of not losing the radiated guidance signal should exceed in any period of seconds for an M S approach elevation intended to be used for Category I operations (e uivalent to hours mean time between outages) Note uidance material on integrity and continuity of service is given in Attachment 2007/70/II. szám Annex 10 — Aeronautical Communications Volume I 23/11/06 3.11.5.3.5 round e uipment accuracy 3.11.5.3.5.1 The ground equipment contribution to the mean glide path error component of the PFE shall not exceed an error equivalent to plus or minus 0.3 m (1 ft) at the approach reference datum. 3.11.5.3.5.2 Recommendation The ground e uipment contribution to the CMN at the reference datum should not exceed m ( ft) on a per cent probability basis Note This is the e uipment error and does not include any propagation effects Note uidance on the measurement of this parameter can be found in Attachment 3.11.5.3.6 Siting Note uidance material on critical areas for elevation antennas is provided in Attachment 3.11.5.3.6.1 The approach elevation ground equipment antenna shall be located beside the runway. Siting of the antennas shall be consistent with obstacle clearance Standards and Recommended Practices in Annex 14. 3.11.5.3.6.2 The approach elevation ground equipment antenna shall be sited so that the asymptote of the minimum glide path crosses the threshold at the MLS approach reference datum. 3.11.5.3.6.2.1 Recommendation The minimum glide path angle is normally degrees and should not exceed degrees except where alternative means of satisfying obstacle clearance re uirements are impractical Note It is intended that the choice of a minimum glide path angle higher than degrees be determined by operational rather than technical factors 3.11.5.3.6.2.2 Recommendation The approach elevation ground e uipment antenna should be sited so that the height of the point which corresponds to the decoded guidance signal of the minimum glide path above the threshold does not exceed m ( ft) Note The offset of the elevation antenna from the runway centre line will cause the minimum glide path elevation guidance to be above the approach reference datum 3.11.5.3.6.3 Recommendation hen I S and M S simultaneously serve the same runway the I S reference datum and the M S approach reference datum should coincide within a tolerance of m ( ft) Note It is intended that this recommendation would apply only if the I S reference datum satisfies the height specifications in and Note Information related to collocated M S I S siting is provided in Attachment 3.11.5.4 Data coverage and monitoring Note uidance material relating to data applications is provided in Attachment Note The essential data are basic data and essential auxiliary data transmitted in auxiliary data words A A A and A 2007/70/II. szám C a ter Annex 10 — Aeronautical Communications 23/11/06 3.11.5.4.1 asic data 3.11.5.4.1.1 The basic data words 1, 2, 3, 4 and 6 shall be transmitted throughout the approach azimuth coverage sector. Note The composition of the basic data words is given in Appendix A Table A 3.11.5.4.1.2 Where the back azimuth function is provided, basic data words 4, 5 and 6 shall be transmitted throughout the approach azimuth and back azimuth coverage sectors. 3.11.5.4.2 Auxiliary data 3.11.5.4.2.1 Auxiliary data words A1, A2 and A3 shall be transmitted throughout the approach azimuth coverage sector. 3.11.5.4.2.2 Where the back azimuth function is provided, auxiliary data words A3 and A4 shall be transmitted throughout the approach azimuth and back azimuth coverage sectors. Note Auxiliary data words and are transmitted in place of A and A respectively to support applications which re uire a imuth antenna rotation beyond the alignment range available in A and A 3.11.5.4.2.3 When provided, auxiliary data B words shall be transmitted throughout the approach azimuth sector, except that the words comprising the back azimuth procedure database shall be transmitted throughout the back azimuth sector. 3.11.5.4.2.4 Recommendation If the bac a imuth function is provided the appropriate auxiliary data words should be transmitted Note The composition of the auxiliary data words is given in Appendix A Tables A A and A 3.11.5.4.3 Monitor and control 3.11.5.4.3.1 The monitor system shall provide a warning to the designated control point if the radiated power is less than that necessary to satisfy the DPSK requirement specified in 3.11.4.10.1. 3.11.5.4.3.2 If a detected error in the basic data radiated into the approach azimuth coverage occurs in at least two consecutive samples, radiation of these data, approach azimuth and elevation functions shall cease. 3.11.5.4.3.3 If a detected error in the basic data radiated into the back azimuth coverage occurs in at least two consecutive samples, radiation of these data and the back azimuth function shall cease. 3.11.5.5 Distance measuring e uipment 3.11.5.5.1 DME information shall be provided at least throughout the coverage volume in which approach and back azimuth guidance is available. 3.11.5.5.2 Recommendation DME information should be provided throughout a imuth if operationally re uired Note Siting of DME ground e uipment is dependent on runway length runway profile and local terrain uidance on siting of DME ground e uipment is given in Attachment C and Attachment 2007/70/II. szám Annex 10 — Aeronautical Communications Volume I 23/11/06 3.11.6 Airborne equipment characteristics 3.11.6.1 Angle and data functions 3.11.6.1.1 Accuracy 3.11.6.1.1.1 Where the DPSK and scanning beam signal power densities are the minimum specified in 3.11.4.10.1, the airborne equipment shall be able to acquire the signal and any decoded angle signal shall have a CMN not exceeding 0.1 degree, except that the back azimuth guidance function CMN shall not exceed 0.2 degree. Note It is intended that basic and auxiliary data words which contain information essential for the desired operation be decoded within a time period and with an integrity which is suitable for the intended application Note Information related to the ac uisition and validation of angle guidance and data functions is given in Attachment 3.11.6.1.1.2 Where the radiated signal power density is high enough to cause the airborne receiver noise contribution to be insignificant, the airborne equipment shall not degrade the accuracy of any decoded angle guidance signal by greater than plus or minus 0.017 degree (PFE), and plus or minus 0.015 degree (azimuth), and plus or minus 0.01 degree (elevation) CMN. 3.11.6.1.1.3 In order to obtain accurate guidance to 2.5 m (8 ft) above the runway surface, the airborne equipment shall produce less than 0.04 degree CMN with the power densities indicated in 3.11.4.10.2 b). 3.11.6.1.2 Dynamic range 3.11.6.1.2.1 The airborne equipment shall be able to acquire the signal and the performance in 3.11.6.1.1.2 shall be met where the power density of any of the radiated signals has any value between the minimum specified in 3.11.4.10.1 up to a maximum of minus 14.5 dBW/m2. 3.11.6.1.2.2 The receiver performance shall not degrade beyond the specified limits when the maximum differential levels permitted in 3.11.6.1.2.1 exist between signal power densities of individual functions. 3.11.6.1.3 Receiver angle data output filter characteristics 3.11.6.1.3.1 For sinusoidal input frequencies, receiver output filters shall not induce amplitude variations or phase lags in the angle data which exceed those obtained with a single pole low-pass filter with a corner frequency of 10 rad/s by more than 20 per cent. Note Receiver outputs intended only to operate visual displays may benefit from appropriate additional filtering Additional information on output data filtering is given in Attachment 3.11.6.1.4 Adjacent channel spurious response The receiver performance specified in 3.11.6 shall be met when the ratio between the desired tracked signals and the noise produced by the adjacent channel signals in a 150 kHz bandwidth centred around the desired frequency is equal to or greater than the signal-to-noise ratio (SNR) values:

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