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Select the correct statements regarding unguided

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31.Select the correct statement(s) regarding unguided radio frequency (RF) signals. a. the magnetic wave of a RF signal determines the waves polarization b. right-hand circularly polarized (RHCP) signals are orthogonal to left-hand circularly polarized (LHCP) signals c. signal wave depolarization is never a problem when considering RF transmissions d. all statements are correct
32. Given the following FM modulated signal equation and Kvco, determine the originalmessage m(t) and frequency bandwidth: s(t)=2cos(21(4MHz)t + 3sin(2m(4kHz)t)), Kvco=4000 (Hz/v)
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33. Given the following message and carrier waves, determine the AM signal equation and (DSB-LC) bandwidth: m(t)=5cos(2m(50Hz)t), c(t)=3cos(2m(10E9Hz)*()
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b. 5[1+1.67cos(2m150t)]cos(2m10E9t). BW= 20E9HZ c. 3[1+0.6cos(2m100t)]cos(2m 10E91), BW = 100Hz d. 3[1+1.67cos(2m150t)]cos(2π10E9t), BW=100Hz 34. You desire to digitize an analog music channel that has a frequency bandwidth of 20kHz. You select a bit depth of 16 bits per sample and choose to follow the Nyquist sampling rate. What is the uncompressed data rate that must be supported?
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35. Select the OSI Reference Model Layer that identifies the port assignment identifying the application to which the data belongs at the destination node. a. Transport Layer b. Data Link Layer c. Network Layer
d. The OSI RM only address logical data layers 36. Cochannel interference occurs when the radiation coverage areas of two adjacent transmitters operating at the same transmission frequency overlap.
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37. Polarization of an electromagnetic (EM) field and an antenna are determined by the EM's electric field.
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38. Given the following parameters, determine the correct sinusoidal equation for a cosine wave: f=1.8MHz, A=3v. (phase angle)= -T/8 radians.
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