EXAMIANS
In a typical mobile satellite array antenna if three elements are activated, how many elements are deactivated?
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Repeaters inside communications satellites are known as
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What kind of battery used by older satellites?
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What is the local oscillator (mixer) frequency of the satellite with an uplink frequency in GHz band?
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What height must a satellite be placed above the surface of the earth in order for its rotation to be equal to earth’s rotation?
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What is a device that detects both vertically and horizontally polarized signals simultaneously?
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A mobile satellite array has usually how many elements?
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Which of the following is the first commercial satellite?
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A method of multiple accessing where a given RF channel bandwidth is divided inot smaller frequency band.
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As the height of a satellite orbit gets lower, the speed of the satellite ___________.
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