Term
What reason for modulation involves modulating low frequency signals for transmission over long distances? |
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Definition
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Term
What are the three general categories used to produce modulation in radio frequency transmission today? |
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Definition
Amplitude, frequency, and phase |
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Term
When the modulating signal and carrier signal are combined within a modulator, the output signal contains a/an |
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Definition
carrier, upper sideband, and lower sideband |
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Term
If a carrier frequency of 1 MHz and a modulating tone of 10 kHz goes to the modulator, the output signal include |
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Definition
1.01 MHz, 1 MHz, and 0.99 MHz |
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Term
If the modulating audio signal is 10kHz wide, what is the bandwidth of the transmitted amplitude modulated signal? |
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Definition
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Term
The bandwidth of an amplitude modulated signal is |
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Definition
two times the modulating signal |
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Term
The amount of effect or change that the intelligence has on the carrier in an amplitude modulated signal is expressed as the |
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Definition
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Term
Which statement concerning bandwidth is true? |
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Definition
Overmodulating increases bandwidth due to the production of harmonics |
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Term
Reducing modulation to less than 100% gives |
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Definition
a reduction in carrier and sideband power |
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