Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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T7B01 What can you do if you are told your FM
handheld or mobile transceiver is over-deviating?
a. | Talk louder into the microphone | c. | Change to a higher power level | b. | Let the transceiver cool off | d. | Talk farther away
from the microphone |
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2.
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T7B02 What would cause a broadcast AM or FM radio
to receive an amateur radio transmission unintentionally?
a. | The receiver is unable to reject strong signals outside
the AM or FM band | c. | The audio amplifier of the transmitter
is overloaded | b. | The microphone
gain of the transmitter is turned up too high | d. | The deviation of
an FM transmitter is set too low |
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3.
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T7B03 Which of the following can cause radio
frequency interference?
a. | Fundamental overload | c. | Spurious emissions | b. | Harmonics | d. | All of these choices are
correct |
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4.
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T7B04 Which of the following is a way to
reduce or eliminate interference from an amateur transmitter to a nearby telephone?
a. | Put a Filter on the amateur
transmitter | c. | Reduce the SWR on the transmitter transmission
line | b. | Reduce the microphone gain | d. | Put an RF filter
on the telephone |
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5.
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T7B05 How can overload of a non-amateur radio
or TV receiver by an amateur signal be reduced or eliminated?
a. | Block the amateur signal with a filter at the antenna
input of the affected receiver | c. | Switch the transmitter from FM to
SSB | b. | Block the interfering signal with a Filter on the
amateur transmitter | d. | Switch the transmitter to a narrow-band
mode |
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6.
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T7B06 Which of the following actions should
you take if a neighbor tells you that your station's transmissions are interfering with their
radio or TV reception?
a. | Make sure that your station is functioning properly and
that it does not cause interference to your own radio or television when it is tuned to the same
channel | c. | Tell them that your license gives you the right to
transmit and nothing can be done to reduce the interference | b. | Immediately turn off your transmitter and contact the nearest FCC office for
assistance | d. | Install a harmonic doubler on the output of your transmitter and tune it until
the interference is eliminated |
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7.
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T7B07 Which of the following can reduce
overload to a VHF transceiver from a nearby FM broadcast station?
a. | RF preamplifier | c. | Using
headphones instead of the speaker | b. | Double-shielded
coaxial cable | d. | Band-reject filter |
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8.
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T7B08 What should you do if something in a
neighbor's home is causing harmful interference to your amateur station?
a. | Work with your neighbor to identify the offending
device | c. | Check your station and make sure it meets the standards
of good amateur practice | b. | Politely inform
your neighbor about the rules that prohibit the use of devices that cause
interference | d. | All of these choices are correct |
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9.
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T7B09 What is a Part 15 device?
a. | An unlicensed device that may emit low-powered radio
signals on frequencies used by a licensed service | c. | A
device for long-distance communications using special codes sanctioned by the International Amateur
Radio Union | b. | An amplifier that
has been type-certified for amateur radio | d. | A type of test set
used to determine whether a transmitter complies with FCC regulation
91.15 |
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10.
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T7B10 What might be a problem if you receive
a report that your audio signal through the repeater is distorted or unintelligible?
a. | Your transmitter is slightly off
frequency | c. | You are in a bad location | b. | Your batteries are running low | d. | All of these
choices are correct |
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11.
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T7B11 What is a symptom of RF feedback in a
transmitter or transceiver?
a. | Excessive SWR at the antenna
connection | c. | Reports of garbled, distorted, or unintelligible voice
transmissions | b. | The transmitter
will not stay on the desired frequency | d. | Frequent blowing
of power supply fuses |
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12.
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T7B12 What should be the first step to
resolve cable TV interference from your ham radio transmission?
a. | Add a low-pass filter to the TV antenna
input | c. | Add a preamplifier to the TV antenna
input | b. | Add a high-pass niter to the TV antenna
input | d. | Be sure all TV coaxial connectors are installed
properly |
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