ECE 210 Lecture 22: Frequency Domain

Q3.
1. State the 3 Major Types of signal distortions. And state the frequency domain conditions for
each.
2. State the time domain condition for distotionless transmission.
3. A transmitter send a signal x(t)=A sin(2πfot + ϴ).The channel is the distortion less.
Propagation delay is г to reach to the receiver. Sketch the transmit and receive signals.
Verify the condition for distotionless transmission.
4. A 3000 km repeater system consists of m identical fibber-optic cable sections with
Attenuation 0.5 dB/km and m identical amplifiers. Find the required number of sections
and the gain per amplifier so that Pout = Pin = 5 mW and the input power to each amplifier
is at least 67 pW.