Antennas Practice Test 10

1. On which of the following factors does the LOS distance depends?

2. How long the waves due to duct propagation travel following the earth curvature?

3. Find the skip distance when the angle of incidence is 200 and virtual height is 50km?

4. The value of refractive index when the MUF is equal to the critical frequency is ______

5. In Smart antennas, signal to interference ratio is low.

6. The maximum possible frequency for which the wave is reflected back for a given distance of propagation in the ionosphere layer is called as_______

7. The tropospheric scattering occurs at _________

8. Refractive index is directly proportion to ___________

9. For f_MUF ≥ f_c, the wave will reflects back irrespective of the angle of incidence.

10. Find the critical frequency when the refractive index of the layer is 0.54 and MUF is 9MHz?