Exercise 1

Satellite communication is generally carried out for frequencies above

Which of the following is not a transmission channel?

If a carrier wave of $1000 \mathrm{kHz}$ is used to carry the signal, the length of transmitting antenna will be equal to

A $\mathrm{TV}$transmission tower has a height of $320 \mathrm{m}$, signal broadcast from this tower will be received by $\mathrm{LOS}$ communication at a maximum distance of $(R_e : 6.4 x {10}^6 \mathrm{m})$

In frequency modulation, the amount of frequency deviation depends on the

A speech signal of $3 \mathrm{kHz}$ is used to modulate a carrier signal of frequency $1 \mathrm{MHz}$, using amplitude modulation. The band width of signal, is

$3‐30 \mathrm{MHz}$ frequency range is known as

Long distance short wave radio broadcasting uses