For use by 3D1X5 personnel for the purpose of CDC EOC testing.
Synchronizer
Transmitter
Modulator
Duplexer
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It is nonlinear
It transmits patterns
It contains ferrite devices
Its transmit and receive patterns are identical
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Active
Linear
Passive
Circular
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Gain
Location
Purpose
Power
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Simultaneous reception of pulse-type information
Near-simultaneous reception of pulse-type information
Electromagnetic (EM) waves reach the receiving antenna by direct paths
EM waves reach the receiving antenna by indirect paths
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Long-range surveillance
Airport surveillance
Precision approach
Weather
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Azimuth only
Elevation only
Range and azimuth
Elevation and range
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Prevents implosion if the CRT is broken
Keeps the phosphor coating from burning
Eliminates static charges on the deflection plates
Prevents collisions between electrons in the beam and air molecules
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A Mode 4 reply is being received
The aircraft is a pilotless drone or missile
The aircraft is declaring a military emergency
It is requested by the radar operator to identify the aircraft position
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Communicates in parallel format
Blocks many characters together for transmission
Eliminates the control bits, so more message data can be sent
Uses low cost equipment to support synchronous transmission
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The easy tap-ability of fiber optic cables reduces security risks
Fiber optic cable has a higher attenuation than coaxial cable
Electromagnetic fields do not affect fiber optic cables
Nuclear radiation does not affect fiber optic cable
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400 to 750 nm
750 to 1500 nm
400 to 750 mm
750 to 1500 mm
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Absorption
Scattering
Reflection
Dispersion
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Fiber material and number of fibers
Buffer type and application method
Numerical aperture and cable elements
Refractive index profile and number of modes
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Circuit jacks
Rotary switch
Range pushbutton
Touch-hold pushbutton
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Microamps direct current (DC)
Microamps AC
Milliamps/amp DC
Milliamps/amp AC
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High-attenuation, crosstalk, and noise
Fresnel reflection, dispersion, and scattering
High-impedance, capacitance, and rectification
Low-attenuation, electromagnetic immunity, and absorption
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Turn the hand-crank until an arc is present
Turn the hand-crank until the needle set has stopped moving
Turn the hand-crank and monitor the megger’s output with another meter
Turn the hand-crank at a rate to keep the indicator lights at a steady glow
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2
3
4
5
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10 Hz to 10 kHz
20 Hz to 20 kHz
10 kHz to 10GHz
20 kHz to 35 MHz
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Verifying transmitter frequencies
Troubleshooting receivers
Checking antenna systems
Aligning galvanometers
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3 dB
6 dB
9 dB
12 dB
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Local control
Terminal control area
Air route traffic control
Precision approach radar control
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One’s complement
Repeater logic
Closed-loop
Open-loop
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L-band
S-band
W-band
X-band
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Provide voltage amplification and trigger shaping to the TWT modulator trigger
Produce excitation voltage for the cathode of the TWT modulator trigger
Modulate the incoming video for conversion to intermediate frequency (IF)
Provide pulse shaping for stable master oscillator
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443
439
423
421
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Mode control
Open loop
Closed loop
Rebound
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Filters out unwanted frequencies
Provides amplification of the transmitted pulse
Produces the second intermediate frequency
Prevents receiver damage by the transmitter high-power pulse
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IF down converter
Error detector
Frequency converter
MTI detector
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The last module on the chain is tested first
The testing is randomly selected by the TDC
Modules are prewired to a fixed testing sequence
Modules that affect the testing of others are tested first
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Phase detector
Coherent canceller
Analog to digital converter
Second-time-around reduction circuits
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Higher frequencies
Intermediate and higher frequencies
Lower frequencies
Intermediate and lower frequencies
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Clear the indicator when overloaded
Allow new data to be entered during operation
Allow the indicator to be reset during operation
Maintain a flicker-free presentation for the display
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6.4 and 10.4 GHz
7.4 and 10 GHz
8.4 and 10 GHz
8.4 and 9.4 GHz
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On the high-voltage power supply rectifier circuit card
On the high-voltage power supply regulator circuit card
Behind the transmitter front panel control assembly
On the transmitter front panel
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High-altitude “holes”
Received ground reflections
Low-altitude gaps and coverage
Clutter caused by severe weather
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Black hole video
Signal-to-noise ratio
Minimum video limiting
Barely visible “grass” on the indicator
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1,000 feet
1,200 feet
10,000 feet
12,000 feet
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Provides a backup keyboard in the event of master indicator keyboard failure
Enables the lead controller to override a trainee’s incorrect data entry during routine air traffic training
Enables the on-duty chief controller to invoke system inquiries without encroachment to the drop/suspend list priority
Enables one controller to “work” active traffic and the remaining controller to perform flight data entry/modification, handoffs, etc
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Continually retransmits previous data
Severs connection and redial as required
Transmits a pattern of ones and zeroes continually until the start of data
Transmits odd-parity search strings every 3.2 seconds to maintain the handshake
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A conventional plan-position indicator (PPI)
An A-scan indicator
A B-scan indicator
A J-scan indicator
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Number of displays in use
Physical location of the system
Number of RCUs required for facility operation
Type of automation system connected to the digital scan converter (DSC) cabinet
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Separate slow and fast moving targets
Prevent overload during heavy air traffic
Process target and weather returns separately
Provide redundancy in event one channel fails
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Radar interference suppressor (RIS)
Uninterruptable power supply (UPS)
Facility monitoring and control (FMAC)
Upconverter
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Large vertical aperture (LVA) antenna
Plot processor
Target tracker
Transmitter
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Processor
Remote site monitor
Control and monitor system
RF changeover unit (RFCO)
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Transponder
Transmitter
Receiver
Tracker
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