Study Question. Thanks!

QUESTION 19 When microwave communication systems are used, it is important to ensure line-of-site (LOS) throughout the Fresnel zone True False QUESTION 20 Polarization of an electromagnetic wave (EM) is determined by the polarization of the electrical field (i.e., not the magnetic field) True False QUESTION 21 The Antenna Reciprocity Theorem states an antenna's electromagnetic properties will be the same whether it is transmitting or receiving. True False QUESTION 22 Select the correct statement(s) regarding antenna and RF wave polarization. a. a vertically polarized RF wave cannot be collected by a horizontally polarized antenna b. right-hand circular polarization is said to be orthogonal to left-hand circular polarization C. signals of the same frequency can be transmitted together in an non-interfering manner as long as their polarizations are orthogonal to one another d. all statements are correct