Block 5

Question 1

Divided into 360 degrees

Answer 1

Sine Wave

Question 2

of cycles occur in a second

Answer 2

Frequency

Question 3

Physical Length; Used in determining antenna size

Answer 3

Wavelength

Question 4

Continuous and variable electrical wave that represents an infinite #

Answer 4

Analog

Question 5

Amount of signal strength

Greater height greater value

Answer 5

Amplitude

Question 6

Audio Frequency Range

Answer 6

400Hz- 15000Hz

Question 7

Radio Frequency range

Answer 7

20 kHz to 300 GHz

Question 8

Constant amplitude and frequencies

Answer 8

Carrier wave

Question 9

Lower frequency that contains info.

AKA Audio

Answer 9

Intelligence Wave

Question 10

Process of combining 2 or more inputs in a nonlinear device

Answer 10

Heterodyning

Question 11

Current through is not proportional to applied voltage

Answer 11

Non Linear Device

Question 12

Process of which the amplitude or frequency of a carrier wave is varied in accordance with the intelligence wave

Answer 12

Modulation

Question 13

4 Basic Req of Modulation

Answer 13

Reference signal
Modulating signal
Non linear device
Filter

Question 14

Instantaneous amplitude of the carrier is varied according to the instantaneous amplitude/frequency of the intelligence

Answer 14

Amplitude Modulation

Question 15

The frequencies or space the carrier and the significant side bands occupy in the frequency spectrum

Answer 15

Bandwidth

Question 16

Form of amplitude modulation where carrier and one side band is eliminated

Answer 16

Single Sideband

Question 17

Frequency of the carrier signal deviates in proportion to the amplitude or frequency of the modulating signal

Answer 17

Frequency Modulation

Question 18

Centers around using a method of manipulating a short duration pulses in direct relation to the intelligence

Answer 18

Pulse modulation

Question 19

Duration of time (Pulse Modulation)

Answer 19

Pulse Width

Question 20

Transmitter is not transmitting (Pulse Modulation)

Answer 20

Rest Time

Question 21

Total time of one complete cycle (Pulse Modulation)

Answer 21

Pulse Repetition time

Question 22

The rate in Pulses (Pulse Modulation)

Answer 22

Pulse Repetition Frequency

Question 23

Max Power (Pulse Modulation)

Answer 23

Power Peak

Question 24

Peak power averaged (Pulse Modulation)

Answer 24

Average Power

Question 25

Changing the amplitude of the pulses are in direct relation to the modulating intelligence

Answer 25

Pulse amplitude modulation

Question 26

Changing the duration of the pulses

Answer 26

Pulse duration modulation

Question 27

Change in the position of the pulses

Answer 27

Pulse position modulation

Question 28

Changing analog to digital by means of coding

Answer 28

Pulse Code modulation

Question 29

The intelligent shifts the output between two predetermined frequencies

Answer 29

Frequency Shift Key

Question 30

The intelligence shifts the phase of the carrier frequency

Answer 30

Phase Shift Key (PSK)

Question 31

Generate a stable waveform, contant amplitude and constant frequencies

Answer 31

Oscillators

Question 32

4 elements of Oscillators

Answer 32

Power supply
Amplifier
FDD
Regenerative Feedback Network

Question 33

Capacitors are ganged tuned

Answer 33

Phase Shirt RC Oscillator

Question 34

Fly Wheel Effect where capacitor and inductor are in a parallel circuit

Answer 34

LC Network Type Oscillator

Question 35

Specially cut crystal controls the frequency

Answer 35

Crystal Oscillator

Question 36

Property of a crystal to convert mechanical force into electrical charge and vice versa

Answer 36

Piezoelectric effect