Domanda 157, Meteorology - ATPL - Airline Transport Pilot license

The antenna tilt shall be adjusted in order to receive the most significant echoes (generally received from an altitude of approximately 30000 ft).
Accurate assessment of the weather ahead of the aircraft might be hampered due to the attenuation of the radar echoes by heavy rain.
The most significant echoes will be received due to lightning discharges near the freezing level.
The radar reflectivity echoes are much more determined by the number of reflecting particles than by the particle size.