Crowdly

primary radar in the UHF band.

secondary radar in the VHF band.

primary radar in the SHF band.

How is the Special Position Identification (SPI) pulse transmitted?

By the SSR interrogator in order to request the identification of an aircraft.

Automatically when the transponder responds to a mode A interrogation.

By the SSR interrogator if it is suspected that responses are received from aircraft that are located in thedirection of the side lobes of the interrogator antenna.

By the transponder as a result of the pilot pushing the IDENT button.

Amongst others, SBAS allows for the implementation of:

1D Baro-VNAV approaches

2D precision and non-precision approaches.

4D FMS approaches.

3D туре-A and Туре-В approaches.

Airborne Weather Radar has been primarily developed to detect...

areas of severe clear air turbulence.

all kinds of frozen precipitation such as hail, snow and graupel.

areas of wind shear and severe aircraft icing.

the kinds of precipitation which are usually accompanied by turbulence.

How will an SSR interrogation be directed toward a specific aircraft?

Controller-Pilot Data-Link Communications (CPDLC) will reply with a unique aircraft identifier.

By limiting the beam width of the SSR transmission.

With a unique 24-bit address in the interrogation.

The SSR interrogation is directed to the aircraft's position.

How should one avoid a thunderstorm?

Fly through, turning on the anti-icing equipment available.

Fly 5 NM to the side of the thunderstorm.

Fly on the upwind side of the storm, avoiding red and magenta coloured areas on the screen.

Fly through, avoiding magenta on your AWR.

By using EGNOS in combination with GPS

a better position accuracy is obtained but the integrity of the system is not improved.

the integrity is improved by reducing the mean failure reporting time from up to 3 hours to 6 seconds

the errors caused by multi path and noise are eliminated.

no improvements are obtained apart from the redundancy

The DME Line Of Position is a circle with radius:

the slant range and centre the DME-station.

the slant range and centre the aircraft.

the ground distance and centre the aircraft.

a the ground distance and centre the DME-station.

The BFO selection will:

make the modulation tone audible.

increase the transmission signal of the NDB.

make the carrier wave audible.

cause the ADF to automatically select the best frequency of nearby NDBs.

A primary radar can provide:

Bearing only.

Bearing and range, are NOT acquired simultaneously.

Range only.

Bearing and range, are acquired simultaneously.