Week 1

Question 1

Symbol Rate

Answer 1

Symbol Rate is the number of signal elements per second.

Question 2

Bit Rate

Answer 2

Bit rate is the number of bits per second

Question 3

You can change what three properties of a carrier signal?

Answer 3

Amplitude
Frequency
Phase

Question 4

Types of PSK?

Answer 4

Binary PSK
Quadrature PSK
M-PSK

Question 5

Binary PSK

Answer 5

2 Symbol states
1 Bit per symbol
Bit Rate = Symbol rate

Question 6

Quadrature PSK

Answer 6

4 Symbol States
2 Bit per symbol
Bit rate = 2 * Symbol rate

Question 7

M-PSK

Answer 7

M = 2, 4, 8
R bit per symbol
Bit Rate = R * Symbol Rate

Question 8

What is QAM?

Answer 8

Quadrature Amplitude modulation is a combination of ASK and PSK

Question 9

Example levels of QAM

Answer 9

4-QAM
8-QAM
16-QAM

Question 10

How do you calculate QAM bit rate?

Answer 10

Log2M * Symbol Rate

Question 11

Information is transmitted at the?

Answer 11

Bit rate

Question 12

Bandwdith is proportional to the ?

Answer 12

Symbol rate

Question 13

A system which sends a lot of data in a small bandwidth is said to have?

Answer 13

Good Bandwidth Efficiency