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3. Electronic Warfare > EW Fundamentals > Flashcards

Flashcards in EW Fundamentals Deck (91)
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What's FM covers Electronic Warfare?

FM 3–36

1

As per FM 3–36, what is Electronic Warfare?

Electronic warfare is military action involving the use of electromagnetic and direct energy to control the electromagnetic spectrum or to attack the enemy.

2

As per FM 3–36, what is an operational environment?

An operational environment is a composite of the conditions, circumstances, and influences that affect the employment capabilities and bear on the decisions of the commander.

3

As per FM 3–36, what is the electromagnetic spectrum?

The electromagnetic spectrum is the range of frequencies of EM radiation from zero to infinity. It is divided into 26 alphabetically designated bands. The spectrum is a continuum of all EM waves arranged according to frequency and wavelength.

4

IR

Infrared

5

EHF

Extremely high frequency

6

ELF

Extremely low frequency

7

GHz

Gigahertz

8

HF

High-frequency

9

LF

Low frequency

10

MF

Medium frequency

11

MHz

Megahertz

12

SHF

Super high frequency

13

UHF

Ultra high-frequency

14

UV

Ultraviolet

15

VHF

Very high-frequency

16

VLF

Very low frequency

17

EW consists of what three divisions?

Electronic attack (EA)
Electronic protection (EP)
Electronic warfare support (ES)

18

Name examples of systems and targets dependent on the EM spectrum.

Military communications
Commercial communications
Maritime sensors
Airborne sensors
Ground-based sensors
Positioning/navigation/timing systems
Foreign media
Weapons of mass destruction
Improvised explosive devices
Space-based sensors and relays
Motors and generators
Electrical fuses
Infrastructures
Network apertures
Personnel
Deeply buried targets

19

Electronic Attack (EA)

The use of electromagnetic energy, directed energy, or anti-radiation weapons to attack personnel, facilities, or equipment with the intent of degrading, neutralizing, or destroying enemy combat capability and is considered a form of fires.

20

What are "principal EW activities?"

Principal EW activities support unified land operations by exploiting the opportunities and vulnerabilities inherent in the use of the electromagnetic spectrum.

21

Electronic Attack (EA) includes:

Electromagnetic jamming (CREW)
Electromagnetic deception
Directed energy
Anti-radiation missile
Expendables (such as flares and active decoys)

22

EA activities (6):

Countermeasures
EM deception
EM intrusion
EM jamming
EM pulse
EM probing

23

Electronic Protection (EP)

Actions taken to protect personnel, facilities, and equipment from any effects of friendly or enemy use of the electromagnetic spectrum that degrade, neutralize, or destroy from a combat capability.

25

Electronic Protection (EP) includes:

Spectrum management
Electromagnetic hardening
Emission control
Reprogramming

25

Electronic Warfare Support (ES)

Actions task by, or under the direct control of, and operational commander to search for, intercept, identify, and locate or localize sources of intentional and unintentional radiated electromagnetic energy for the purpose of immediate threat recognition, targeting, planning, and conduct of future operations.

26

EP activities (8):

27

Electronic Warfare Support (ES) include:

Threat warning
Collection supporting electronic warfare
Direction finding

28

ES activities (3):

Electronic reconnaissance
Electronic intelligence
Electronic security

29

Define "Countermeasures."

Countermeasures are that form of military science that, by the employment of devices and/or
techniques, has as its objective the impairment of the operational effectiveness of enemy activity (JP 1-02).
They can be deployed preemptively or reactively. Devices and techniques used for EW countermeasures include electro-optical-infrared countermeasures and radio frequency countermeasures.