This is a quiz for URE1 Volume 1 for AFSC 3D153 CDC's. This is to be used as a study aid.
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, 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
5kHz
10kHz
15kHz
20kHz
Two times the modulating signal
The same as the modulating signal
Determined by the modulation index.
Defined in terms of maximum amount of modulation
Percent of modulation
Modulation index.
Bandwidth
Deviation
Overmodulating increases bandwidth due to the production of harmonics
Undermodulating increases bandwidth due to the production of harmonics
Overmodulating increases bandwidth due to the output’s increased amplitude
Undermodulating increases bandwidth due to the output’s decreased amplitude
More total power
A reduction in carrier power
No reduction in carrier power
A reduction in carrier and sideband power
Inversely proportional to the amplitude of the modulating signal.
Directly proportional to the amplitude of the modulating signal
Inversely proportional to the phase of the modulating signal
Directly proportional to the phase of the modulating signal
Sidebands containing at least 1 percent of the total transmitted power
Sidebands containing at least 3 percent of the total transmitted power
Sidebands containing at least 10 percent of the total transmitted power
Sidebands containing at least 0.1 percent of the total transmitted power
Deviation divided by frequency of modulation
Deviation times frequency of modulation
Sideband divide by carrier frequency
Sideband times carrier frequency
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
Easier detection
Smaller bit error rate
Better signal-to-noise ratio
Higher data rates within a given bandwidth
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
Pulse width modulation (PWM).
Pulse position modulation
Pulse duration modulation
Pulse amplitude modulation
One Character
Block of data
A parity bit
Synchronization (SYNC) bit
Determines parity
Determines transmission rate
Determines whether transmission is in American Standard code for Information Interchange (ASCII) format
Determines whether transmission is synchronous or asynchronous
Checksum and cyclic redundancy check
Longitudinal redundancy check and checksum
Cyclic redundancy check and vertical redundancy check
Vertical redundancy check and longitudinal redundancy check
Checksum
Block check character
Redundant data transfer
Automatic retransmit on request
Error-correcting code
Forward error control
Redundant data transfer
Automatic retransmit on request
Receiving end.
In the oscillator
Transmitting end.
In the primary buffers
Terminates fiber optics cable
Converts electrical energy into optical energy
Extend the distance and to preserve signal integrity
Accepts optical signals and converts them into electrical signals
Photo transistors.
Hybrid photodiodes
Semiconductor laser diodes
Integrated photodiode/preamplifiers
Incoherent
Coherent
Ordinary
Invisible
Megawatt
Microwatt
Milliwatt
Kilowatt
Regenerator
Transmitter
Amplifier
Receiver
Dark current
Dispersion
Distortion
Ionization
Emitter rise time
Wavelength of light
Signal-to-noise ratio (SNR)
Emitter modulation speed
Positive intrinsic negative and avalanche photodiode
Light-emitting diode (LED) and avalanche photodiode
LED and semiconductor laser
Tunnel and zener diodes
Light emitting diode (LED)
Avalanche photodiode
Positive intrinsic negative (PIN) diode
Integrated phtodiode/preamplifier (IDP)
Receiver
Transmitter
Repeater
Patch cords
Repeaters
Regenerators
Optical Amplifiers
Receiver
Pigtail
Patch cord
Jumper
Breakout cables
Biconic
Field connector (FC)
Straight tip (ST)
Sub-miniature, type A (SMA)
Biconic
Field Connector (FC)
Subscriber (SC)
Sub-mini, Type A (SMA0
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