Analog, Digital, and Pulses

Question 1

How would you describe an Analog signal?

Answer 1

Continuous (voltage/current) with infinite range of data points

Question 2

Where do you measure PULSE WIDTH?

Answer 2

at 50%

Question 3

What is another name for pulse width?

Answer 3

Duration and Length

Question 4

Where do you measure rise and fall time?

Answer 4

10% and 90%

Question 5

What is a Non-periodic waveform and what does it contain?

Answer 5

Different intervals and contains different pulse widths and periods

Question 6

What is a FREQUENCY and what is it measured in?

Answer 6

the RATE at which the waveform repeats, in Hz (f=1/T)

Question 7

What is Duty Cycle and what is it measured in?

Answer 7

the ratio of Pulse Width to the Period, measured in %

Question 8

What is the magnitude/height of a pulse called?

Answer 8

Pulse Amplitude

Question 9

What is a baseband transmission?

Answer 9

Tx at its base frequency, no modulation

Question 10

What are the 4 types of pulse modulations?

Answer 10

Amplitude, Width, Position, Coded

Question 11

What is a digital signal?

Answer 11

Discrete on and off signals

Question 12

Which pulse modulation is the most unreliable and why?

Answer 12

Pulse amplitude because it is similar to noise

Question 13

What is PCM used for?

Answer 13

Digital Audio