Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Space Shit > SEW 1-2 > Flashcards

SEW 1-2 Flashcards

1
Q

Which DEL 3 squadron develops and trains combat-relevant EW professionals?

A

3 CTS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Which DEL 3 squadron trains, equips, mobiles, and employs SEW capabilities in support of full-spectrum national security objectives?

A

4 EWS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Which DEL 3 squadron provides combat-ready EW forces to protect and defend and defend US and allies global operations?

A

5 EWS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Which DEL 3 squadron consists of combat-ready space warfighters who defend the space domain?

A

16 EWS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What did Capt Midnight’s signal hijacking lead to?

A

Electronic Communications Privacy Act of 1986

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the UN’s agency for information and communication technologies?

A

International Telecommunication Union (ITU)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Which RF spectrum is labeled: VLF, LF, MF, HF, VHF, UHF, SHF, EHF, and THF?

A

ITU

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the global organization that works to develop, implement, and maintain technology-based products and services?

A

Institute of Electrical and Electronic Engineers (IEEE)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Which RF spectrum is labeled: HF, VHF, UHF, L, S, C, X, Ku, K, Ka, V, W, and mm?

A

IEEE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Which RF spectrum is labeled: A-M?

A

NATO

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the movement of electrons through a conductive material in a uniform direction?

A

Current electricity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the force exerted by a material that attracted or repels the same material?

A

Magnetism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is Coulomb’s Law?

A

Inverse Square Law

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What did Ampere discover?

A

Induction; an electric current in a wire produces a magnetic field the direction of which depends on the direction of the current

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What did Faraday discover?

A

Recursivity; a moving electric field produces a magnetic field and vice versa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are Maxwell’s 4 equations?

A
  1. Force of attraction between electric charges is inversely proportional to the square of the distance between them.
  2. Magnetic poles come in pairs that attract and repel each other.
  3. An electric current in a wire produces a magnetic field the direction of which depends on the direction of the current.
  4. A moving electric field produces a magnetic field and vice versa.
17
Q

What is the flow of energy at the speed of light through free space or a medium?

A

Electromagnetic radiation

18
Q

What is composed if oscillating E and B fields?

A

EM wave

19
Q

What is the height of the wave from the zero point on the x-axis called?

A

Amplitude, measured in watts

20
Q

What is the measure of the distance between two waves?

A

Wavelength, measured in meters

21
Q

What is the measure of the number of cycles per unit time?

A

Frequency, measured in Hertz

22
Q

What is the inverse of frequency?

A

Period, measured in seconds

23
Q

What is the measure of offset between two waves?

A

Phase, measured in degrees

24
Q

What is the orientation of a wave, based on the direction of the E field?

A

Polarization, linear (horizontal/vertical) or circular (clockwise/counterclockwise)

25
Q

What is the relationship between wavelength and frequency?

A

Inverse

26
Q

What is the relationship between energy and frequency?

A

Direct

27
Q

What are ranges within the EM spectrum that can pass through Earth’s atmosphere?

A

Atmospheric windows

28
Q

What transforms EM energy into heat? (Caused by water vapor, carbon dioxide, and ozone)

A

Atmospheric absorption

29
Q

What is the dispersal of EM radiation within the atmosphere?

A

Atmospheric scattering

30
Q

What is the reduction in amplitude of an EM signal over distance due to absorption sands scattering?

A

Attenuation

31
Q

What is the bending of light due to atmospheric density (temperature and pressure)?

A

Atmospheric refraction

32
Q

What is the manipulation of EM waves as they pass through the atmosphere?

A

Scintillation

33
Q

Which frequencies are most affected by scintillation?

A

Low frequencies, like UHF

34
Q

Which frequencies are most affected by atmosphere?

A

High frequencies, like EHF

35
Q

Which frequency is least affected by both scintillation and atmosphere?

A

SHF/X-band

Space Shit (10 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions