Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
31 Cards in this Set
- Front
- Back
|
Digital to analog |
Ask, psk,fsk and qam are examples of |
|
|
Analog to analog |
Am and fm are examples of |
|
|
Amplitude and phase |
In QAM, both blank of a carrier frequency are varied |
|
|
800 |
If the baud rate is 400 for a QPSK signal, the bit rate is blank bps |
|
|
1200 |
If the bit rate for an ASK signal is 1200 bps, the baud rate is |
|
|
1200 |
If the bit rate for an FSK signal is 1200 bps, the baud rate is |
|
|
1000 |
If the bit rate for a 16 QAM signal is 4000 bps, what us the baud rate? |
|
|
12000 |
If the baud rate for a 64 QAM signal is 2000, what is the bit rate? |
|
|
700 KHz |
Given an AM radio signal with a bandwidth of 10 KHz and the highest frequency component at 705 KHz, what is the frequency of the carrier signal? |
|
|
Digital to analog |
Conversion is the process of changing one of the characteristics of an analog signal based on the information to digital data |
|
|
AM |
Not a digital to analog conversion |
|
|
ASK |
The amplitude of the carrier signal is varied to create elements. Both frequency and phase remain constant |
|
|
Fsk |
The frequency of the carrier signal is varied to represent data. Both peak amplitude phase remain constant |
|
|
PSK |
The phase of the carrier is varied to represent two or more different signal elements |
|
|
Amplitude and phase |
A constellation diagram shows us the blank of a signal element, particularly when we are using two carriers |
|
|
Ask and psk |
Quadrature amplitude modulation is a combination of |
|
|
QAM |
Uses two carriers, one in phase and the other quadrature |
|
|
Analog to analog |
Conversion is the representation of analog information by an analog signal |
|
|
Band pass |
Analog to analog conversion is needed if the available bandwidth is |
|
|
QAM |
Which of the following is not an analog to analog conversion |
|
|
OOK |
The peak amplitude of one signal level is 0, the other is the same as the amplitude of the carrier frequency |
|
|
1 |
How many carrier frequencies are used in BASK? |
|
|
2 |
How many carrier frequency are used in BFSK |
|
|
1 |
How many carrier frequencies are used in BPSK? |
|
|
2 |
How many carrier frequencies are used in QPSK |
|
|
2 |
The constellation diagram of BASK has blank dots |
|
|
2 |
The constellation diagram of BPSK has |
|
|
4 dots |
The constellation diagram of QPSK has |
|
|
16 dots |
The constellation diagram of 16 QAM has |
|
|
10 |
The Federal Communications Commissions allows blank KHz for each AM station |
|
|
100 |
The FCC allows blank KHz for each FM station |
