1000 kHz carrier wave is amplitude modulated by the signal frequency 200 - 4000 Hz. The channel width of this case is

Question

1000 kHz carrier wave is amplitude modulated by the signal frequency 200 - 4000 Hz. The channel width of this case is (A) 8 kHz (B) 4 kHz (C) 7.6 kHz (D) 3.8 kHz

Tardigrade Admin · Accepted Answer

Bandwidth is equal to twice the frequency of modulating signals. Therefore, Band width =2 upsilonm = 2 × 4000 Hz = 8 × 103 Hz = 8 kHz

Q. $1000 k Hz$ carrier wave is amplitude modulated by the signal frequency $200 - 4000 Hz$ . The channel width of this case is

8 kHz

4 kHz

7.6 kHz

3.8 kHz

Bandwidth is equal to twice the frequency of modulating signals.
Therefore,
Band width $= 2 υ_{m}$
$= 2 \times 4000 Hz = 8 \times 1 0^{3} Hz = 8 k Hz$

Q. 1000kHz carrier wave is amplitude modulated by the signal frequency 200−4000Hz. The channel width of this case is