SEW 1-2 Flashcards
(35 cards)
Which DEL 3 squadron develops and trains combat-relevant EW professionals?
3 CTS
Which DEL 3 squadron trains, equips, mobiles, and employs SEW capabilities in support of full-spectrum national security objectives?
4 EWS
Which DEL 3 squadron provides combat-ready EW forces to protect and defend and defend US and allies global operations?
5 EWS
Which DEL 3 squadron consists of combat-ready space warfighters who defend the space domain?
16 EWS
What did Capt Midnight’s signal hijacking lead to?
Electronic Communications Privacy Act of 1986
What is the UN’s agency for information and communication technologies?
International Telecommunication Union (ITU)
Which RF spectrum is labeled: VLF, LF, MF, HF, VHF, UHF, SHF, EHF, and THF?
ITU
What is the global organization that works to develop, implement, and maintain technology-based products and services?
Institute of Electrical and Electronic Engineers (IEEE)
Which RF spectrum is labeled: HF, VHF, UHF, L, S, C, X, Ku, K, Ka, V, W, and mm?
IEEE
Which RF spectrum is labeled: A-M?
NATO
What is the movement of electrons through a conductive material in a uniform direction?
Current electricity
What is the force exerted by a material that attracted or repels the same material?
Magnetism
What is Coulomb’s Law?
Inverse Square Law
What did Ampere discover?
Induction; an electric current in a wire produces a magnetic field the direction of which depends on the direction of the current
What did Faraday discover?
Recursivity; a moving electric field produces a magnetic field and vice versa
What are Maxwell’s 4 equations?
- Force of attraction between electric charges is inversely proportional to the square of the distance between them.
- Magnetic poles come in pairs that attract and repel each other.
- An electric current in a wire produces a magnetic field the direction of which depends on the direction of the current.
- A moving electric field produces a magnetic field and vice versa.
What is the flow of energy at the speed of light through free space or a medium?
Electromagnetic radiation
What is composed if oscillating E and B fields?
EM wave
What is the height of the wave from the zero point on the x-axis called?
Amplitude, measured in watts
What is the measure of the distance between two waves?
Wavelength, measured in meters
What is the measure of the number of cycles per unit time?
Frequency, measured in Hertz
What is the inverse of frequency?
Period, measured in seconds
What is the measure of offset between two waves?
Phase, measured in degrees
What is the orientation of a wave, based on the direction of the E field?
Polarization, linear (horizontal/vertical) or circular (clockwise/counterclockwise)
