All questions: 82

In mode TRAINING show all questions of the discipline with correct answers presentation. To go to the next question, click the “Next”.

Questions for exams: 30

In mode Exam correct answers are not shown, after choosing the answer, transition to the next question occurs automatically.

Random 5 questions:
1. The VHF direction finder uses the following wavelengths:
2. A Doppler shift will occur:
3. A wavelength of 8,5 mm corresponds to a frequency of:
4. An HF transmitter is tuned to a frequency that refracts from the E layer in the Ionosphere. The maximum distance of the first returning skywave is:
5. The Marker beacons use the following wavelengths: