What was the typical bandwidth used by analog TV broadcasting?

When two odd functions are multiplied, what will the output function be?

Which of the following statements about the impulse signal is correct?

In a facsimile reproduction, the time to scan one line is 2 ms. If it has 4% blanking, what is the visible trace time?

A continuous time signal is given by,

f(t) = 0.5*t + t² ; 0<t<10

      = 10               ; t=10

      = 0                ; otherwise

Find f(at).

x(n) = n*(1/2)^|n| (n varies between - ∞ and + ∞ )

Find the inverse DTFT of Y(e^jΩ) = X(e^jΩ) + X(e^-jΩ) where X(e^jΩ) is the Fourier transform of x(n).

If the Laplace transform of f(t) is F(s) and the Laplace transform of g(t) is G(s), what is the value of the Laplace transform of af(t) + bg(t)?

Discrete Fourier series and Continuous Fourier transform

A CDMA system consists of 15 equal power users that transmit information at a rate of 10 kbps, each using a DS spread spectrum signal operating at a chip rate of 1 MHz. The modulation scheme is BPSK. How much should the processing gain be increased to allow for doubling the number of users without affecting the autopad SNR?

The given statements describe the transfer equations of different properties of DTFS. Check which statement(s) is/are incorrect.

Statement I : Time Shifting Property = x(n-n₀) <-----> e^-jkΩ₀n₀ X(k)

Statement II : Frequency Shifting Property = e^jk₀Ω₀n X(n) <----->  X(k-k₀) 

Statement III: Linearity Property = {aX₁(k) + bX₂(k)} <------>  {aX₁(n) + bX₂(n)}