could any one help me to solve this proplem?? `A composite signal contains 11 equally spaced frequencies from 300Hz to 3.3 KHz, each with amplitude of 10 volts.` 1. Draw the frequency spectrum. Calculate signal bandwidth.

2. If the signal is to be sent on a circuit switching network what should be the bandwidth of the link.

3. Is it possible to send it on a telephone network (4kHz of bandwidth); draw the spectrum of the received signal.

4. Show graphically the effect of sending the signal through a 2kHz bandwidth link on signal spectrum.

5. Draw the spectrum of the received signal if it is sent through a circuit switched path of 5 links of 5, 4, 3, 4, 4kHz bandwidths.

sounds like a homework assignment, no?

commented: +1 +8

yes but I work hard and I don't undearstanf it what can I do

also my teacher didn't discuset to us and nothing in the book

help meeee plez

hint:

Most of a human voice frequency distribution concentrates in the vicinity of 300 Hz to 3.5 KHz.

I guess instead of wanting help he really wanted somebody to do the homework for him?