Radio Navigation - ATPL - Airline Transport Pilot license

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

1 - According to the ILS coverage area as defined by ICAO Annex 10, in which of the following situations will the pilot be guaranteed a reliable signal from the localiser? 19NM from touchdown inbound and 13° displaced from the localiser centreline. 27NM from touchdown inbound and 8° displaced from the localiser centreline. 10NM from touchdown inbound and 38° displaced from the localiser centreline. 20NM from touchdown inbound and 8° displaced from the localiser centreline.

2 - In relation to the NAVSTAR/GPS satellite navigation system, what is involved in the differential technique (D-GPS)? Receivers from various manufacturers are operated in parallel to reduce the characteristic receiver noise error The difference between signals transmitted on the L1 and L2 frequencies are processed by the receiver to determine an error correction Signals from satellites are received by 2 different antennas which are located a fixed distance apart. This enables a suitable receiver on the aircraft to recognise and correct for multipath errors Monitor the orbital planes of the satellites

3 - The pencil shaped beam of an airborne weather radar is used in preference to the mapping mode for the determination of ground features: Beyond 50 to 60 NM because more power can be concentrated in the narrower beam When approaching coast-lines in polar regions Beyond 150 NM because the wider beam gives better definition 1030 MHz 1030 MHz

4 - Which of the following lists information required to input a waypoint or 'Phantom Station' into a basic VOR/DME-based Area Navigation System? Magnetic track and distance from the aircraft to the waypoint or 'Phantom Station' Magnetic track and distance to a VOR/DME from the waypoint or 'Phantom Station' Radial and distance from a VOR/DME to the waypoint or 'Phantom Station' Beam width

5 - Airborne weather radars are generally based on the use of: Secondary radar in the SHF band Primary radar in the UHF band Secondary radar in the VHF band C/A- and P

6 - A VOR and DME are co-located.You want to identify the DME by listening to the callsign. Having heard the same callsign 4 times in 30 seconds the: DME callsign is the one with the higher pitch that was broadcast only once VOR and DME callsigns were the same and broadcast with the same pitch DME callsign is the one with the lower pitch that was broadcast several times 6.8 km

7 - In order to indicate an emergency situation, the aircraft Secondary Surveillance Radar (SSR) transponder should be set to: 7600 7700 7000 FLAG/OFF, the aircraft is within the cone of silence.

8 - Ignoring pulse length, the maximum pulse repetition frequency (PRF) that can be used by a primary radar facility to detect targets unambiguously to a range of 200 NM is:(pps = pulses per second) 782 pps 405 pps 375 pps Pulse technique

9 - The diagram indicates that the aircraft is to the:

Left of the localizer and below the glidepath Right of the localizer and above the glidepath Left of the localizer and above the glidepath The frequencies employed are too high to give returns from moisture sources

10 - The frequency of an SSR ground transmission is: 1050 +/- 0.5 MHz 1030 +/- 0.2 MHz 1120 +/- 0.6 MHz 1090 +/- 0.3 MHz

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