QUESTION 26

Given the following equation for an FM signal, select the correct information below:

s_FM(t) =3cos[(2280khz*t)+3sin(24000Hz*t)], k_VCO=2000(Hz/v)

		a. FM Index, =9, Message Amplitude, Am=3v
		b. FM Index, =3, Message Amplitude, Am=6v
		c. FM Index, =3, Message Amplitude, Am=3v
		d. FM Index, =9, Message Amplitude, Am=6v

10 points

QUESTION 27

Determine your FM bandwidth given the following: FM Index =5, frequency of your message is fm-4000Hz.

		a. 4 kHz
		b. 12 kHz
		c. 24 kHz
		d. 48 kHz

10 points

QUESTION 28

Given the following equation for an PM signal, select the correct information below:

s_PM(t) =3 cos[(2300MHz*t+5cos(24kHz*t)], k_P=0.3

		a. PM Index, p=5, Message Amplitude, Am=16.67v
		b. PM Index, p=6, Message Amplitude, Am=16.67v
		c. PM Index, p=3, Message Amplitude, Am=6v
		d. PM Index, p=6, Message Amplitude, Am=5v

10 points

QUESTION 29

With PM, the message amplitude and frequency are directly related to bandwidth.

True

False

10 points

QUESTION 30

When frequency division multiplexing (FDM) is used, guard channels are NOT required in-between frequency channels.

True

False