Radio Navigation - ATPL - Airline Transport Pilot license

Test 10 domande ATPL - Airline Transport Pilot license - Radio Navigation, tempo libero

1 - Which of the following NAVSTAR/GPS satellite navigation system codes can be processed by 'unauthorised' civil aviation receivers? P C/A P and Y Right of the localizer and below the glidepath

2 - How does a NAVSTAR/GPS satellite navigation system receiver recognise which of the received signals belongs to which satellite? Each satellite transmits its signal, on common frequencies, with an individual Pseudo Random Noise code Each satellite transmits its signal on a separate frequency The receiver detects the direction from which the signals are received and compares this information with the calculated positions of the satellites True airspeed

3 - What is the approximate angular coverage of reliable navigation information for a 3° ILS glide path out to a minimum distance of 10 NM? 0.45° above the horizontal to 1.75° above the glide path and 8° each side of the localiser centreline 1.35° above the horizontal to 5.25° above the horizontal and 8° each side of the localiser centreline 3° above and below the glide path and 10° each side of the localiser centreline 0.7° above and below the glide path and 2.5° each side of the localiser centreline

4 - What is the minimum number of satellites required by a GPS in order to obtain a three dimensional fix? 3 5 4 Figure 4

5 - If the reference phase differs 30° with the variable phase the radial from the VOR station will be: 330° 210° 030° 150°

6 - A radar facility transmitting at a Pulse Recurrence Frequency (PRF) of 1200 pulses/second will have a maximum unambiguous range of approximately: 135 NM 69 NM 27 NM Envelope matching

7 - An aircraft at 6400' will be able to receive a VOR groundstation at 100' above MSL at an approximate maximum range of: 90 NM 113 NM 123 NM The distance along a track between two waypoints

8 - The BFO selector on an ADF receiver is used to: Hear the IDENT of some NDB stations radiating a continuous wave signal Find the loop 'null' position Hear the IDENT and must always be switched ON The GNSS can be used to update the FMS position from a drifting IRS.

9 - In which frequency band does the Microwave Landing System (MLS) operate? EHF VHF SHF UHF

10 - Basic RNAV requires a track-keeping accuracy of: +/- 3NM or better for 90% of the flight time +/- 5NM or better for 95% of the flight time +/- 5NM or better throughout the flight 1090 +/- 0.3 MHz

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