11. Tropospheric scatter propagation is not subject to any fading.
12. A square corner reflector is used in which of the following?
13. In an impedance smith chart, a clockwise movement along a constant resistance circle gives rise to
14. In case of surface waves the field strength at a point is directly proportional to
15. The radiation pattern of Hertzian dipole in the plane perpendicular to dipole is a
16. In a perfect conductor the incident and reflected wave combine to produce
17. It is best to use for coupling a coaxial line to a parallel wire transmission line.
18. In H-plane metal plate lens the travelling wave front is
19. Which of the following is multiband HF receiving antenna?
20. An open wire transmission line having a characteristic impedance of 600 ohms is terminated by a resistive load of 900 O. The standing wave ratio will be
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