Volume 1 of 3D1X3 (URE's)
Spectrum conservation
Channel allocation
Ease of radiation
Companding
Binary amplitude shift keying, frequency shift keying, and phase shift keying.
Pulse amplitude, pulse width, and pulse position.
Amplitude, frequency, and phase.
Analog, digital and shift keying.
Modulating signal, upper sideband, and lower sideband.
Carrier, upper sideband, and lower sideband.
Upper sideband and modulating signal.
Carrier and modulating signal.
1.01 MHz, 1 MHz, and 0.99 MHz.
1.1 MHz, 1 MHz, and 0.9 MHz.
1.11 MHz, 1 MHz, 0.99 MHz.
1.111 MHz, 1 MHz, 0.999 MHz.
Two times the modulating signal.
The same as the modulating signal.
Determined by the modulation index.
Defined in terms of maximum amount of modulation.
81.8.
85.5
88
122
Overmodulating increases bandwidth because the distortion produces harmonics.
Undermodulating increases bandwidth because the distortion produces harmonics.
Overmodulating increases bandwidth because the output’s increased amplitude.
Undermodulating increases bandwidth because the output’s decreased amplitude.
Positive half cycle of the carrier.
Negative half cycle of the carrier.
Positive half cycle of the modulating signal.
Negative half cycle of the modulating signal.
1
3
10
0.1
Deviation divided by frequency of modulation.
Deviation times frequency of modulation.
Sideband divide by carrier frequency.
Sideband times carrier frequency.
5
0.5
0.3
3
Space
Guard band.
Buffer zone.
Prevention field.
Frequency
Amplitude
Height
Phase
Phase is shifted at the rate of the modulating signal
Phase shifted with the phase of the modulating signal
Amplitude is shifted at the rate of the modulating signal
Amplitude is shifted with the phase of the modulating signal
Discrete amplitudes are assigned to the sampling pulses
A binary code number is assigned to the sample
The quantizer limits the amplitude of the pulses
The analog signal is band limited
Sampling
Rectifying
Oscillating
Band limiting
Control
Parity
Start
Stop
One character
Block of data
A parity bit
A stop bit
Determines parity
Determines transmission rate
Determines whether transmission is in ASCII format
Determines whether transmission is synchronous or asynchronous
Checksum
Cyclic redundancy check
Vertical redundancy check
Longitudinal redundancy check
Receiving end
In the oscillator
Transmitting end
In the primary buffers
Photo transistors
Hybrid photodiodes
Semiconductor laser diodes
Integrated photodiode/preamplifiers
Incoherent
Coherent
Ordinary
Invisible
Positive intrinsic negative and avalanche photodiode
Light-emitting diode and avalanche photodiode
Light emitting diode and semiconductor laser
Tunnel and zener diodes
Light emitting diode
Avalanche photodiode
Positive intrinsic negative diode
Integrated photodiode/preamplifier
Receiver
Repeaters
Regenerators
Optical amplifiers
Pigtail
Jumper
Patch cord
Breakout cables
Biconic
Field (FC)
Straight tip (ST)
Sub-miniature, type A (SMA)
ANSWER
1 hertz to 1 kilohertz
1 hertz to 1 gigahertz
10 hertz to 10 kilohertz
10 hertz to 10 gigahertz
Is a problem for electronic components in satellites and reentry vehicles
Has a vertical amplitude that decreases inversely with distance, but remains significant for many kilometers
Has very intense radial electrical fields, azimuthal magnetic fields, and time-varying air conductivity
Is the only nuclear environment that may be imposed on many systems simultaneously with the expenditure of very few weapons
Susceptible to the wideband frequency phenomenon
Directly exposed to nuclear radiations from a high-altitude burst
Affected by the azimuthal magnetic fields and time-varying air conductivity
Influenced by the signal fading or waveform distortion caused by the structured plasma field
Secondary
Radiated
Plasma
Source
Blackout effects
Absorption effects
Scintillation effects
Attenuation effects
Scintillation
Local effects
Source region
Long-line effects
Linear
AC line
DC line
Power line
Line noise
Internal to the radio
External to the radio
Radio receiver trouble
Enemy jamming
Internal interference
Radio receiver trouble
Unintentional interference
Rusty bolt
Co-channel
Brute force
Spurious responses
Transmitter
Rusty-bolt
Spurious
Receiver
Relays
Lighting
Power line
Switching equipment
Change the bulb
Ground out the light fixture
Install a noise reject filter on the light
Install a noise reject filter on the receiver
Mishap prevention
Frequency management
Electrostatic discharge control
Spectrum interference resolution
Affected unit
Affected major command
Electromagnetic environmental effects office
Spectrum interference resolution office
Request engineering assistance
Contact the base frequency manager
Systematically gather data for analysis
Contact the spectrum interference resolution office
The operator
Major command
The frequency manager
Federal Communications Commission
The operator
Joint spectrum center
Installation spectrum manager
Federal Communications Commission
Circuit jacks
Rotary switch
Range push button
Touch-hold button
Digital
Annunciator
Range indicator
Analog bar graph
Rotary switch.
Range push button
Power-up self-test
Touch-hold push button
Quiz Review Timeline +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
Wait!
Here's an interesting quiz for you.