Publication: Magyar Közlöny
Issue: MK-2007-70 (Year: 2007, Number: 70)
Era: 2004-2010
Section: Melléklet a 2007. évi XLVI. törvényhez
Paragraph Index: 3667

d) an undesired signal, 150 kHz or further removed from the desired signal, exceeds the desired signal by up to 50 dB. Note 1.— It is recognized that not all receivers currently meet requirement b) however, all future equipments are esi d .6. F FM broadcast signals 3.6.5.1 With reference to the Note of 3.3.8, Chapter 3, the immunity performance defined there must be measured ence of, and under andard conditions for the input wanted signal. This is necessary to ensure that the testing of receiving equipment on the en p ng of VOR information in the aircraft and wh (R 3.6.3 Flag alarm operation. Ideally, the flag alarm should warn a pilot of any unacceptable malfunctioning conditions which mi sp 3.6.3.1 The flag alarm movement is actuated by the sum of two currents which are derived from the 30 Hz and 9 960 Hz element c unacceptable condition prevails on the ground, there will be an immediate indication within an aircraft when the system is unusable. 3.6.3.2 The flag alarm movement current is also dependent upon the AGC characteristics of the airborne equipment and any su is the flags will again become visible in the event of a decrease in the receiver’s overall gain characteristics. Note.— Certain types of receivers employ warning indications other than mechanical flags to perform the functions described here. 3.6.4 VOR rece bench testing of the receiver, in this first adjacent channel case, the undesir an undesired signal, 100 kHz removed from the desired signal, exceeds the desired signal by up to 46 dB; d gne to meet this requirement. Note 2.— In some States, a smaller ground station tolerance is used. Immunity performance of VOR receiving systems to interference from V against an agreed measure of degradation of the receiving system’s normal performance, and in the pres st b ch can be performed to a repeatable set of conditions and results and to facilitate their subsequent approval. Tests have ATT C-51 23/11/06 2007/70/II. szám Annex 10 — Aeronautical Communications Volume I shown that FM interference signals may affect both course guidance and flag current, and their effects vary depending on the DDM of the wanted signal which is applied. Additional information can be found in ITU Recommendation ITU-R IS.1140, Text procedures for measuring receiver characteristics used for determining compatibility between the sound-broadcasting service in the band of about 7 10 M z and the aeronautical services in the band 10 11 M z. 3.6.5.2 Commonly agreed formulae should be used to assess potential incompatibilities to receivers meeting the general interference immunity criteria specified in Chapter 3, 3.3.8. The formulae provide clarification of immunity terference performance of spurious emission (type A1) interference, out-of-band channel (type A2) interference, two-signal s have determined that fifth order termodulation products created in the receiver by FM stations might degrade the performance of VOR receivers onf 3.7 VOR system accuracy Note.— Guidance material on the determination of VOR system performance values is also contained in Annex 11, Attachment A. l separation standards or minimum obstacle clearances, although it may of course provide a starting point in eir determination. The setting of separation standards or minimum obstacle clearances will necessarily take account of an

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