Vol 3 UREs Flashcards
Which principle is not an EW tenet?
Command
What is the first step in EW that is essential to develop an accurate EOB?
Detection
The major components of EW are
Electronic attack, support, and protection
The EW component used to locate intentional and unintentional radiated electromagnetic energy for threat recognition is called electronic _____
Support
To control an adversary’s C2 capabilities, C2W integrates:
Destruction, EW, military deception, OPSEC, and PSYOP
This best describes the degradation or interference with the enemy’s C2 capabilities
Disruption
Using precision-guided munitions, cruise missiles, or gunships is an example of
Physical attack
What support system provides detection and low-level aircraft control beyond coverage of ground-based radars?
AWACS
Normal SEAD targets include radars for:
ACQ, AAA, EW/GCI, and SAM
The division of EW that involves weapons using electromagnetic or directed energy as their primary destructive mechanism is electronic _____
Attack
The primary missile used to destroy enemy radar-equipped air defense systems is the
AGM-88
What missile uses an electro-optical or infrared imaging system to perform EA?
AGM-65
Transmitting a simulated unique system signature from a non lethal platform is an example of
Manipulative deception
A repeater jamming technique that copies enemy radar pulses and returns incorrect target information to the enemy radar is an example of
Imitative deception
EMCON is important because it
Limits incidental or accidental emissions
The actions to locate intentional and unintentional radiated EM energy sources is best described as electronic _____
Support
The panoramic receiver is the heart of the electronic system because it detects
Electromagnetic energy
The pulse analyzer does not measure
Magnetic energy
The RC-135 aircraft provides theater commanders all of the following except how to
determine when a schedule of events will happen
Locate enemy forces, warn of threatening activity, determine the intentions of enemy forces
The major subdivision of electronic reconnaissance collects information pertaining to the patterns, codes, and sites used for communications
COMINT
The pulse analyzer does not analyze this component during manual radar analysis.
Frequency pulse
What order are the four radars in an air defense network used?
Early warning, height finder, acquisition, and terminal defense
What type IADS radar can obtain the general location of an attacking force?
Early warning
What type IADS radar is a lethal threat to attacking aircraft?
Terminal defense
Because of its range capabilities, the AI is generally ____
first of the air defense weapon systems to pose a problem for an approaching force
What three phases do SAM systems function in to target attacking aircraft?
Acquisition, target tracking, and command guidance
What SAM system tracking technique uses two radars?
Track-while-scan
What type of fuse is vulnerable to EW?
PRX
This is an important part of the C2 system
Computer
The AWACS is the most effective C2 addition to the basic air defense system because it adds air defense ______
System detection range
Which of these four metric frequency prefixes designate the smallest radar propagation quantity?
Pico
Nano, Mega, Giga
Which military frequency band designator, of the 4, denotes the highest frequency radar propagation range over the others?
G
C, E, F
Using radar propagation, how long does it take RF energy to travel a radar mile?
12.36 microseconds
When determining a radar’s azimuth, the wider the HBW,
the poorer the resolution
What three properties are common to both visible light and IR energy?
Absorption, reflection, refraction
The amount of IR energy is emitted by an object’s absolute temperature that is
directly proportional to its 4th power
In relation to land and water, thermal crossover means both objects ________
have the same temperature
Most IR missiles operate in the region of this range of microns
1 to 5
What type IR seeker system uses many detectors where each one detects a small portion of a scene?
Staring
What IRCM tactic is used to reduce an engine’s IR signature?
Introducing smoke into the engine exhaust
In what frequency region or spectrum do MAWSs detect energy?
Infrared
What feature of a MAWS relates to timeliness?
Rapid identification of infrared missile threats
What is one disadvantage of an active MAWS?
It can be tracked by passive detection
The process of combining two signal frequencies in a nonlinear device and producing frequencies equal to the sum and the difference describes
Heterodyning
What type of circuit is used to select the new frequencies from the heterodyning process?
Tank
What is the panoramic receiver operator allowed to do with expanded capability?
Separate signals that are close together on an RF band
What feature of a panoramic receiver prevents the on-board transmitters’ output from displaying?
Receiver blanking
What range of coverage does the RWR’s antennas provide?
360 degrees
What component of the RWR identifies radar signals?
Signal processor
The RWR does not display a signal’s
amplitude
What RWR component selects the mode of operation?
Interface control unit
All of the following are techniques used by geolocation receivers except _____
amplitude comparison
triangulation, interferometry, time of arrival
Which geolocation technique involves an equation solving for the distance that the emitter is away from the receiver?
Time of arrival
Altering a carrier wave in accordance with a signal voltage is called
modulation
The process where the carrier wave’s frequency and phase vary according to the signal wave’s amplitude and frequency variations is called this type of modulation.
Frequency
What determines the amount of deviation from the carrier wave?
The modulation index
The major disadvantage of using a waveguide is its
Size restrictions
The main consideration for effective electronic jamming is
Sufficient power
When a radio noise jammer provides radiated power output, the wider the bandwidth,
the lesser the power density
The point where a radar’s return is stronger than the jamming signal is called the
Crossover point
What type of noise jammer jams one frequency, then a second, then a third, for a predetermined period and at a rapid rate?
Sequential
Which type noise jamming predicts when the next radar pulse arrives, and then transmits a signal?
Cover pulse
This noise jamming technique causes jamming strobes to appear on the radarscope
TWS modulated
What radar tracking circuit can deception jamming be used to deceive?
Velocity (or range/azimuth)
Phase, amplitude, frequency
One advantage a deception jammer has over a noise jammer is that it requires
less power
What type of deception jamming technique is related to a time delay?
Range
What type of deception jamming uses the Doppler shift?
Velocity
What type deception jamming technique is used at low altitude against missiles?
Terrain bounce
From an applied signal, input pulses are collected in binary from, and then converted into decimal form for a digital readout. This describes the operation of a
frequency counter
What piece of test equipment uses electromagnetic waves pulses to test cables?
Time domain reflectometer
Using a TDR, the distance to the discontinuity of a cable is determined by the reflected
amplitude of the reflected pulse
What is not a TDR precaution?
Do not select test cable propagation velocity constant
Damage to the sampling gate or tunnel diode of a TDR indicates voltages were applied exceeding
5 V
When determining distance from the TDR to the discontinuity, count the number of CRT divisions between the incident pulse’s
leading edge and the leading edge of the reflected pulse
Which type discontinuity problem is indicated when a TDR display starts in the upper left corner of the screen, drops down at mid screen, and departs in the lower right screen?
A short
A spectrum analyzer is a receiver with this type output
Cathode-ray tube display instead of a speaker
The span of the display, on a spectrum analyzer, is the size of the band of frequencies that are displayed and adjusted with this control
FREQUENCY SPAN
The power sensor is used to establish the active frequency and power range within the design parameters of the
Power meter
Each graticule marking division on the oscilloscope faceplate is
One centimeter square
The horizontal divisions of an oscilloscope faceplate are calibrated to these settings
TIME/DIV control
What is the most commonly used wiring diagnostic tool to determine if a circuit is open or closed?
Digital multi-meter
How many pieces of test equipment are contained in the fiber optic test set?
2
The maximum wavelength, in nm, the light source in a fiber optic test set can produce is
1550
What class laser would you test using the MEON tester?
4
What is the frequency range of the RSS/PLM-4?
0.5 to 18 GHz
What RFLTS test is based on a ratio of power out of a UUT to the RFLTS power fed into the UUT?
Insertion loss
When a fault is suspected in a RF transmission path, because of unacceptable insertion loss, you should perform
DTF measurements
What type test equipment is used to check multiple aircraft chaff and flare dispensing systems?
CDT
In a CMDS, the specific type of payload and magazine presence are simulated by
Coding plunger pins
What CDT functional check measures the firing pulse amplitude and pulse duration?
fire
How many sections make up a network analyzer?
4
A network analyzer has this number of keys for standard data entry
10
What type message describes in detail how an EWIR change affects an EWS?
RIM
Which step is not a part of the EWIR process?
Determine the impact of the threat system
Determine the threat, reprogram the EW system’s software, field the change
What is not part of the EWIR exercise?
Evaluate routine operational change request
Train people, smooth comms, threat readiness
What type of directed exercise evaluates the entire EWIR process?
Air Force
What is the Air Force electronic warfare reprogramming exercise called?
SERENE BYTE
Which two primary reprogramming exercises will you probably be involved in as an EW technician?
SERENE BYTE and PACER WARE
The CAPRE is powered by
An AC adapter and a lithium-ion rechargeable battery
The CAPRE requires visual inspection of components how often?
Annually
