QUESTION Determine the decibel values of thermal noise power (N) and thermal noise power density (No) referenced to 1W given the following: T=288 degrees Kelvin, B = 36MHz.

		a. [N] = +128.44 dBW, [No]= +204.01dBW N
		b. [N] = 1.43E-13 dBW, [No] = 3.97E-21 dBW
		c. [N] = -128.44 dBW, [No]= -204.01dBW
		d. none of the above are correct

QUESTION Given the following information, determine the SNR in decibels at the receiver: transmitted power [Pt]=100 dBW, free space loss [FSL]=80 dB, noise [N]= -10 dBW, power received [Pr]=[Pt]-[FSL], [SNR]=[Pr]-[N]

		a. [SNR]= 170 dB
		b. [SNR]= 10 dB
		c. [SNR]= 190 dB
		d. [SNR]= 30 dB

QUESTION :Identify the correct group of propagation modes and impediments which impact unguided signal transmissions.

		a. reflection, scattering, diffraction
		b. refraction, modal dispersion, direct LOS
		c. reflection, absorption, impedance
		d. crosstalk, modal dispersion, absorption

QUESTION 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