SEW 101 Flashcards
What is the headquarters of space Delta 3?
Headquarters out of Peterson SFB, CO
Name the three squadrons the fall under space Delta 3.
3CTS, for EWS, five EWS, 16 EWS ( defensive)
What is squadron 3 CTS responsible for?
For training all members of Delta 3
What is squadron 4 EWS ( offensive) responsible for?
Trains, equips, and mobilizes, to employ SEW capabilities in order to support full spectrum national security objectives.
“Provides offensive SEW capabilities”
What is squadron 5 EWS responsible for?
Provides combat ready electromagnetic warfare forces to the commander, USSPACECOM, in order to protect and defend US and allied global.
“Provides both offensive and defensive for Spscecom”
What is 16 EWS (defensive) responsible for?
Combat ready space Warfighters defending the space to Maine with space control systems for a nation, the joint force, and allies.
“Provides defensive”
Due to the actions of John R MacDougall also known as Captain midnight Congress passed the ________________________.
Electronic communication, privacy act of 1986
What does the ITU do?
Allocates, global radio spectrum in satellite orbs, they use three letter acronyms to describe frequency bands.
What does the IEEE stand for?
Institute of electrical and electronics engineers
What are the frequency letter band nomenclatures that the IEEE uses to describe bands? ( what letters?)
L S C X KU K KA
Give the range of GHz for each letter.
L S C X KU K KA
L=1-2 GHz
S=2-4 GHz
C=4-8 GHz
X=8-12GHz
KU=12-18 GHz
K=18-26 GHz
KA=26-40GHz
What does a NJFA regulate?
Military access to frequencies, this includes wartime operations.
ITU constitution fully recognizes ________
The sovereign right of each state to regulate its own telecommunication
Spectrum management requires regulation of the_____, _______, and ______levels.
National, regional, global
The US spectrum is managed by the_____ for non-government use in the ______ for government use.
FCC, NTIA
Define electricity.
Electricity is the movement of electrons through a conductive material in a uniform direction.
Define magnetism.
Magnetism is the force exerted by magnet when they attract, or repel each other
Magnetism and electricity are the______ force that acts in different ways
Same
Define electromagnetic radiation.
Electromagnetic radiation is the flow of energy at the speed of light three medium in the form of electric and magnetic fields that make up electromagnetic waves.
Define electromagnetic wave.
Electromagnetic wave is a way that is composed of oscillating magnetic an electric fields.
Define RF ( radio frequency)
RF are EM (electromagnetic) waves that are manipulated and change to send a message
What does RF stand for?
Radio frequency
What does EM stand for?
Electromagnetic
What are the characteristics of a sine wave?
Amplitude, wave link, frequency, phase and polarization.
What does amplitude measure?
Symbol?
Height of a wave.
Symbol : A
What does frequency measure?
Symbol?
Number of cycles per second.
Symbol : V
What does phase measure?
Symbol?
Offset from another wave.
Symbol : PHI symbol (refer to notes for visual)
What does polarization measure?
Symbol?
Orientation of the wave.
Symbol : P
Lower frequency signals are affected by_________.
Scintillation
Definition:
( think twinkling of stars)
variations in amplitude, phase, and polarization signals transmitted through a medium.
Or variations in strength, position in polarization of a transmitted signal passing through medium
What is atmospheric absorption?
Atmospheric absorption is when the atmosphere itself is transforming electromagnetic energy into heat.
Set what is atmospheric refraction?
Atmospheric or fraction is when electromagnetic sandals bend as a travel through the atmosphere.
What is atmospheric scattering?
Atmospheric scattering is the process in which sunlight passes through the earths atmosphere, and is then redirected in all directions to the absorption, and scattering by gases, particles, and droplets …this can lead to blue color in the sky.
