Gibilisco - Wireless Transmitters And Receivers

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1. In which mode of PM does the peak power level of the pulses vary?
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2. Which of the following modes is used to send image data over telephone lines?
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3. The highest layer of the ionosphere is
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4. Which of the following modes can be demodulated with an envelope detector?
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5. The bandwidth of a fax signal is kept narrow by
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6. The S/N ratio is a measure of
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7. A receiver that responds to a desired signal, but not to another signal very close by in
frequency, has good
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8. Frequency sweeping can be used to get a transmitter to produce
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9. If an AM signal is modulated with audio having frequencies up to 5 kHz, then what is the
complete signal bandwidth?
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10. Suppose an SSB suppressed carrier is at 14.335 MHz, and audio data is contained in a band
from 14.335 to 14.338 MHz. What is this mode?
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11. A continuously variable signal (such as music audio) can be recovered from a signal having
only a few discrete levels or states by means of
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12. Fill in the blank to make the following sentence true: “The reception of can be
improved by the use of DSP.”
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13. The reflected wave
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14. Fill in the blank in the following sentence to make it true: “The deviation of a narrowband
voice FM signal normally extends up to either side of the unmodulated-carrier frequency.”
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15. A radio wave has a frequency of 1.55 MHz. The highest modulating frequency that can be
used effectively is about
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16. The dynamic range in a superhet is largely influenced by the performance of the
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17. An advantage of FSK over on/off keying is the fact that FSK
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18. In which mode are signals intertwined in the time domain at the transmitter, and then
separated again at the receiver?
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19. An FM detector with built-in limiting is
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20. An LSB, suppressed-carrier signal can be demodulated by
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In which mode of PM does the peak power level of the pulses vary?
Which of the following modes is used to send image data over telephone...
The highest layer of the ionosphere is
Which of the following modes can be demodulated with an envelope...
The bandwidth of a fax signal is kept narrow by
The S/N ratio is a measure of
A receiver that responds to a desired signal, but not to another...
Frequency sweeping can be used to get a transmitter to produce
If an AM signal is modulated with audio having frequencies up to 5...
Suppose an SSB suppressed carrier is at 14.335 MHz, and audio data is...
A continuously variable signal (such as music audio) can be recovered...
Fill in the blank to make the following sentence true: “The...
The reflected wave
Fill in the blank in the following sentence to make it true: “The...
A radio wave has a frequency of 1.55 MHz. The highest modulating...
The dynamic range in a superhet is largely influenced by the...
An advantage of FSK over on/off keying is the fact that FSK
In which mode are signals intertwined in the time domain at the...
An FM detector with built-in limiting is
An LSB, suppressed-carrier signal can be demodulated by
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