Q. An AM broadcast station transmits modulating frequencies up to 6 kHz. If the AM station is transmitting on a frequency of 894 kHz, the values for maximum and minimum upper and lower sidebands and the total bandwidth occupied by the AM station are:- Published on 12 Oct 15a. 900 KHz, 888 KHz, 12 KHz
b. 894 KHz, 884 KHz, 12 KHz
c. 894 KHz, 888 KHz, 6 KHz
d. 900 KHz, 888 KHz, 6 KHz
ANSWER: 900 KHz, 888 KHz, 12 KHz
Maximum Frequency fUSB = 894 + 6 = 900 kHz
Minimum Frequency fLSB = 894 - 6 = 888 kHz
Bandwidth BW = fUSB fLSB = 900 888 = 12 kHz OR = 2(6 kHz) = 12 kHz
