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100
Space segment
Control segment
Terminal segment
What are the three distinct elements that work together to make satellite communication (SATCOM) possible?
100
Passive.
Which satellite reflects signals transmitted toward it?
100
Defense Information Systems Agency (DISA).
Telecommunications service orders are issued by the
100
meridian.
To determine the number of hours coordinated universal time (UTC) differs from your local time, you must determine the number of time zones between your location and the location of the zero
100
Frequency of light.
What specifically does wavelength division multiplexing assign each incoming optical signal?
200
Spacecraft control
Payload control
Network control
What are the functions of the (satellite communication) SATCOM control segment?
200
Satellite access authorization. SAA
Which satellite look angle methods is provided by (satellite communication SATCOM planners?
200
the apparent motion of the sun in the sky.
Astronomical time is based on
200
24-hour.
Coordinated universal time (UTC) is based on what kind of clock system?
200
Time.
Which multiplexing division technique samples each low speed channel in sequence to interleave bits or characters and then transmit them at high speed?
300
Apogee
Which term describes the longest distance across an elliptical orbit?
300
Demand assigned multiple access (DAMA).
Which satellite access technique is being used when all channels are pooled and used by any station according to its instantaneous traffic load?
300
Coordinated universal time.
What time scale gives us a universally agreed to standard time scale with the stability and accuracy of atomic time and synchronous operation with the earth’s motion about the sun we can depend on?
300
second.
A number of organizations can maintain accurate time-of-day clocks by referencing a standard time interval of one
300
Forward error correction.
What relies on the transmitter to send multiple copies of the same message to the distant end using a predetermined algorithm?
400
90°
What is the inclination angle of a polar orbit?
400
Joint Staff.
Conflicts regarding Defense Satellite Communications System (DSCS) ground mobile forces (GMF) satellite resources that cannot be settled by the Defense Information Systems Agency (DISA) and the regional satellite communications support center (RSSC) are resolved by the
400
Temperature and aging.
What two factors cause a quartz oscillator’s resonant frequency to drift?
400
International Bureau of Weights and Measures (BIPM).
The agency responsible for coordinated universal time (UTC) is the
400
Up converter.
Which SATCOM system module is used to produce the final transmit frequency?
500
Active and passive.
What are the two types of communications satellites?
500
ensure the user agency is prepared to pay for the service.
One of the functions of the telecommunication certification office is to
500
atoms release energy at a particular resonant frequency.
The operation of the atomic clock is based on the phenomenon that
500
Combining multiple information channels onto a common transmission medium.
What is multiplexing?
500
Solid state.
Which type of power amplifier uses semiconductor transistors designed for microwave and higher frequency RF operation?






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