Question

An AM broadcast station is transmitting at its assigned frequency of 880 Khz. The carrier is modulated by a 3.5 Khz sine wave. Determine the transmitted frequencies.

Answer 1

Answer:

Transmitted frequencies are 876.5 KHz and 883.5 KHz

Explanation:

We have given that carrier frequency $f_c=880KHz$

And modulated frequency $f_m=6.5KHz$

We have to find the transmitted frequencies that are LSB and MSB

For finding LSB we subtract the modulated frequency from carrier frequency

So LSB = 880-3.5 = 876.5 KHz

For finding LSB we add the modulated frequency to carrier frequency

So LSB = 880+3.5 = 883.5 KHz