Radio technology · Question 25 of 65

In which of the following situations is radiotelephony communication between aircraft and the TOWER on frequency 118.250 MHz unlikely to encounter any problems?

1 answer is correct. Medium Official question catalogue

1. A When the aircraft flies at a low altitude, and is very far away from the aeronautical station
2. B When the aircraft flies at a low altitude in the radio shadow of a mountain, and is far away from the aeronautical station
3. C When the aircraft flies at a sufficiently high altitude, and is close to the aeronautical station
4. D When the aircraft performs a low-level flight in a valley, in radio shadow in the vicinity of the aeronautical station