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Questions in US Amateur Radio - Technician (Element 2, 2018-2022)

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NameQuestion Study
T0A01Which of the following is a safety hazard of a 12-volt storage battery?Start
T0A02What health hazard is presented by electrical current flowing through the body?Start
T0A03In the United States, what is connected to the green wire in a three-wire electrical AC plug?Start
T0A04What is the purpose of a fuse in an electrical circuit?Start
T0A05Why is it unwise to install a 20-ampere fuse in the place of a 5-ampere fuse?Start
T0A06What is a good way to guard against electrical shock at your station?Start
T0A07Which of these precautions should be taken when installing devices for lightning protection in a coaxial cable feed line?Start
T0A08What safety equipment should always be included in home-built equipment that is powered from 120V AC power circuits?Start
T0A09What should be done to all external ground rods or earth connections?Start
T0A10What can happen if a lead-acid storage battery is charged or discharged too quickly?Start
T0A11What kind of hazard might exist in a power supply when it is turned off and disconnected?Start
T0B01When should members of a tower work team wear a hard hat and safety glasses?Start
T0B02What is a good precaution to observe before climbing an antenna tower?Start
T0B03Under what circumstances is it safe to climb a tower without a helper or observer?Start
T0B04Which of the following is an important safety precaution to observe when putting up an antenna tower?Start
T0B05What is the purpose of a gin pole?Start
T0B06What is the minimum safe distance from a power line to allow when installing an antenna?Start
T0B07Which of the following is an important safety rule to remember when using a crank-up tower?Start
T0B08What is considered to be a proper grounding method for a tower?Start
T0B09Why should you avoid attaching an antenna to a utility pole?Start
T0B10Which of the following is true when installing grounding conductors used for lightning protection?Start
T0B11Which of the following establishes grounding requirements for an amateur radio tower or antenna?Start
T0B12Which of the following is good practice when installing ground wires on a tower for lightning protection?Start
T0B13What is the purpose of a safety wire through a turnbuckle used to tension guy lines?Start
T0C01What type of radiation are VHF and UHF radio signals?Start
T0C02Which of the following frequencies has the lowest value for Maximum Permissible Exposure limit?Start
T0C03What is the maximum power level that an amateur radio station may use at VHF frequencies before an RF exposure evaluation is required?Start
T0C04What factors affect the RF exposure of people near an amateur station antenna?Start
T0C05Why do exposure limits vary with frequency?Start
T0C06Which of the following is an acceptable method to determine that your station complies with FCC RF exposure regulations?Start
T0C07What could happen if a person accidentally touched your antenna while you were transmitting?Start
T0C08Which of the following actions might amateur operators take to prevent exposure to RF radiation in excess of FCC-supplied limits?Start
T0C09How can you make sure your station stays in compliance with RF safety regulations?Start
T0C10Why is duty cycle one of the factors used to determine safe RF radiation exposure levels?Start
T0C11What is the definition of duty cycle during the averaging time for RF exposure?Start
T0C12How does RF radiation differ from ionizing radiation (radioactivity)?Start
T1A01Which of the following is a purpose of the Amateur Radio Service as stated in the FCC rules and regulations?Start
T1A02Which agency regulates and enforces the rules for the Amateur Radio Service in the United States?Start
T1A03What are the FCC rules regarding the use of a phonetic alphabet for station identification in the Amateur Radio Service?Start
T1A04How many operator/primary station license grants may be held by any one person?Start
T1A05What is proof of possession of an FCC-issued operator/primary license grant?Start
T1A06What is the FCC Part 97 definition of a beacon?Start
T1A07What is the FCC Part 97 definition of a space station?Start
T1A08Which of the following entities recommends transmit/receive channels and other parameters for auxiliary and repeater stations?Start
T1A09Who selects a Frequency Coordinator?Start
T1A10Which of the following describes the Radio Amateur Civil Emergency Service (RACES)?Start
T1A11When is willful interference to other amateur radio stations permitted?Start
T1B01What is the International Telecommunications Union (ITU)?Start
T1B02Which amateur radio stations may make contact with an amateur radio station on the International Space Station (ISS) using 2 meter and 70 cm band frequencies?Start
T1B03Which frequency is within the 6 meter amateur band?Start
T1B04Which amateur band are you using when your station is transmitting on 146.52 MHz?Start
T1B05What is the limitation for emissions on the frequencies between 219 and 220 MHz?Start
T1B06On which HF bands does a Technician class operator have phone privileges?Start
T1B07Which of the following VHF/UHF frequency ranges are limited to CW only?Start
T1B08Which of the following is a result of the fact that the Amateur Radio Service is secondary in all or portions of some amateur bands (such as portions of the 70 cm band)?Start
T1B09Why should you not set your transmit frequency to be exactly at the edge of an amateur band or sub-band?Start
T1B10Which of the following HF bands have frequencies available to the Technician class operator for RTTY and data transmissions?Start
T1B11What is the maximum peak envelope power output for Technician class operators using their assigned portions of the HF bands?Start
T1B12Except for some specific restrictions, what is the maximum peak envelope power output for Technician class operators using frequencies above 30 MHz?Start
T1C01For which license classes are new licenses currently available from the FCC?Start
T1C02Who may select a desired call sign under the vanity call sign rules?Start
T1C03What types of international communications is an FCC-licensed amateur radio station permitted to make?Start
T1C04When are you allowed to operate your amateur station in a foreign country?Start
T1C05Which of the following is a valid call sign for a Technician class amateur radio station?Start
T1C06From which of the following locations may an FCC-licensed amateur station transmit?Start
T1C07What may result when correspondence from the FCC is returned as undeliverable because the grantee failed to provide and maintain a correct mailing address with the FCC?Start
T1C08What is the normal term for an FCC-issued primary station/operator amateur radio license grant?Start
T1C09What is the grace period following the expiration of an amateur license within which the license may be renewed?Start
T1C10How soon after passing the examination for your first amateur radio license may you operate a transmitter on an Amateur Radio Service frequency?Start
T1C11If your license has expired and is still within the allowable grace period, may you continue to operate a transmitter on Amateur Radio Service frequencies?Start
T1D01With which countries are FCC-licensed amateur radio stations prohibited from exchanging communications?Start
T1D02Under which of the following circumstances may an amateur radio station make one-way transmissions?Start
T1D03When is it permissible to transmit messages encoded to hide their meaning?Start
T1D04Under what conditions is an amateur station authorized to transmit music using a phone emission?Start
T1D05When may amateur radio operators use their stations to notify other amateurs of the availability of equipment for sale or trade?Start
T1D06What, if any, are the restrictions concerning transmission of language that may be considered indecent or obscene?Start
T1D07What types of amateur stations can automatically retransmit the signals of other amateur stations?Start
T1D08In which of the following circumstances may the control operator of an amateur station receive compensation for operating that station?Start
T1D09Under which of the following circumstances are amateur stations authorized to transmit signals related to broadcasting, program production, or news gathering, assuming no other means is available?Start
T1D10What is the meaning of the term broadcasting in the FCC rules for the Amateur Radio Service?Start
T1D11When may an amateur station transmit without on-the-air identification?Start
T1E01When is an amateur station permitted to transmit without a control operator?Start
T1E02Who may be the control operator of a station communicating through an amateur satellite or space station?Start
T1E03Who must designate the station control operator?Start
T1E04What determines the transmitting privileges of an amateur station?Start
T1E05What is an amateur station control point?Start
T1E06When, under normal circumstances, may a Technician class licensee be the control operator of a station operating in an exclusive Amateur Extra class operator segment of the amateur bands?Start
T1E07When the control operator is not the station licensee, who is responsible for the proper operation of the station?Start
T1E08Which of the following is an example of automatic control?Start
T1E09Which of the following is true of remote control operation?Start
T1E10Which of the following is an example of remote control as defined in Part 97?Start
T1E11Who does the FCC presume to be the control operator of an amateur station, unless documentation to the contrary is in the station records?Start
T1F01When must the station licensee make the station and its records available for FCC inspection?Start
T1F02When using tactical identifiers such as “Race Headquarters” during a community service net operation, how often must your station transmit the station’s FCC-assigned call sign?Start
T1F03When is an amateur station required to transmit its assigned call sign?Start
T1F04Which of the following is an acceptable language to use for station identification when operating in a phone sub-band?Start
T1F05What method of call sign identification is required for a station transmitting phone signals?Start
T1F06Which of the following formats of a self-assigned indicator is acceptable when identifying using a phone transmission?Start
T1F07Which of the following restrictions apply when a non-licensed person is allowed to speak to a foreign station using a station under the control of a Technician class control operator?Start
T1F08What is meant by the term Third Party Communications?Start
T1F09What type of amateur station simultaneously retransmits the signal of another amateur station on a different channel or channels?Start
T1F10Who is accountable should a repeater inadvertently retransmit communications that violate the FCC rules?Start
T1F11Which of the following is a requirement for the issuance of a club station license grant?Start
T2A01Which of the following is a common repeater frequency offset in the 2 meter band?Start
T2A02What is the national calling frequency for FM simplex operations in the 2 meter band?Start
T2A03What is a common repeater frequency offset in the 70 cm band?Start
T2A04What is an appropriate way to call another station on a repeater if you know the other station's call sign?Start
T2A05How should you respond to a station calling CQ?Start
T2A06Which of the following is required when making on-the-air test transmissions?Start
T2A07What is meant by "repeater offset?"Start
T2A08What is the meaning of the procedural signal “CQ”?Start
T2A09What brief statement indicates that you are listening on a repeater and looking for a contact?Start
T2A10What is a band plan, beyond the privileges established by the FCC?Start
T2A11What term describes an amateur station that is transmitting and receiving on the same frequency?Start
T2A12Which of the following is a guideline when choosing an operating frequency for calling CQ?Start
T2B01What is the most common use of the “reverse split” function of a VHF/UHF transceiver?Start
T2B02What term describes the use of a sub-audible tone transmitted along with normal voice audio to open the squelch of a receiver?Start
T2B03If a station is not strong enough to keep a repeater’s receiver squelch open, which of the following might allow you to receive the station’s signal?Start
T2B04Which of the following could be the reason you are unable to access a repeater whose output you can hear?Start
T2B05What might be the problem if a repeater user says your transmissions are breaking up on voice peaks?Start
T2B06What type of tones are used to control repeaters linked by the Internet Relay Linking Project (IRLP) protocol?Start
T2B07How can you join a digital repeater’s “talk group”?Start
T2B08Which of the following applies when two stations transmitting on the same frequency interfere with each other?Start
T2B09What is a “talk group” on a DMR digital repeater?Start
T2B10Which Q signal indicates that you are receiving interference from other stations?Start
T2B11Which Q signal indicates that you are changing frequency?Start
T2B12Why are simplex channels designated in the VHF/UHF band plans?Start
T2B13Where may SSB phone be used in amateur bands above 50 MHz?Start
T2B14Which of the following describes a linked repeater network?Start
T2C01When do the FCC rules NOT apply to the operation of an amateur station?Start
T2C02What is meant by the term "NCS" used in net operation?Start
T2C03What should be done when using voice modes to ensure that voice messages containing unusual words are received correctly?Start
T2C04What do RACES and ARES have in common?Start
T2C05What does the term “traffic” refer to in net operation?Start
T2C06Which of the following is an accepted practice to get the immediate attention of a net control station when reporting an emergency?Start
T2C07Which of the following is an accepted practice for an amateur operator who has checked into a net?Start
T2C08Which of the following is a characteristic of good traffic handling?Start
T2C09Are amateur station control operators ever permitted to operate outside the frequency privileges of their license class?Start
T2C10What information is contained in the preamble of a formal traffic message?Start
T2C11What is meant by the term “check,” in reference to a formal traffic message?Start
T2C12What is the Amateur Radio Emergency Service (ARES)?Start
T3A01What should you do if another operator reports that your station’s 2 meter signals were strong just a moment ago, but now they are weak or distorted?Start
T3A02Why might the range of VHF and UHF signals be greater in the winter?Start
T3A03What antenna polarization is normally used for long-distance weak-signal CW and SSB contacts using the VHF and UHF bands?Start
T3A04What can happen if the antennas at opposite ends of a VHF or UHF line of sight radio link are not using the same polarization?Start
T3A05When using a directional antenna, how might your station be able to access a distant repeater if buildings or obstructions are blocking the direct line of sight path?Start
T3A06What term is commonly used to describe the rapid fluttering sound sometimes heard from mobile stations that are moving while transmitting?Start
T3A07What type of wave carries radio signals between transmitting and receiving stations?Start
T3A08Which of the following is a likely cause of irregular fading of signals received by ionospheric reflection?Start
T3A09Which of the following results from the fact that skip signals refracted from the ionosphere are elliptically polarized?Start
T3A10What may occur if data signals arrive via multiple paths?Start
T3A11Which part of the atmosphere enables the propagation of radio signals around the world?Start
T3A12How might fog and light rain affect radio range on the 10 meter and 6 meter bands?Start
T3A13What weather condition would decrease range at microwave frequencies?Start
T3B01What is the name for the distance a radio wave travels during one complete cycle?Start
T3B02What property of a radio wave is used to describe its polarization?Start
T3B03What are the two components of a radio wave?Start
T3B04How fast does a radio wave travel through free space?Start
T3B05How does the wavelength of a radio wave relate to its frequency?Start
T3B06What is the formula for converting frequency to approximate wavelength in meters?Start
T3B07What property of radio waves is often used to identify the different frequency bands?Start
T3B08What are the frequency limits of the VHF spectrum?Start
T3B09What are the frequency limits of the UHF spectrum?Start
T3B10What frequency range is referred to as HF?Start
T3B11What is the approximate velocity of a radio wave as it travels through free space?Start
T3C01Why are direct (not via a repeater) UHF signals rarely heard from stations outside your local coverage area?Start
T3C02Which of the following is an advantage of HF vs VHF and higher frequencies?Start
T3C03What is a characteristic of VHF signals received via auroral reflection?Start
T3C04Which of the following propagation types is most commonly associated with occasional strong over-the-horizon signals on the 10, 6, and 2 meter bands?Start
T3C05Which of the following effects might cause radio signals to be heard despite obstructions between the transmitting and receiving stations?Start
T3C06What mode is responsible for allowing over-the-horizon VHF and UHF communications to ranges of approximately 300 miles on a regular basis?Start
T3C07What band is best suited for communicating via meteor scatter?Start
T3C08What causes tropospheric ducting?Start
T3C09What is generally the best time for long-distance 10 meter band propagation via the F layer?Start
T3C10Which of the following bands may provide long distance communications during the peak of the sunspot cycle?Start
T3C11Why do VHF and UHF radio signals usually travel somewhat farther than the visual line of sight distance between two stations?Start
T4A01What must be considered to determine the minimum current capacity needed for a transceiver power supply?Start
T4A02How might a computer be used as part of an amateur radio station?Start
T4A03Why should wiring between the power source and radio be heavy-gauge wire and kept as short as possible?Start
T4A04Which computer sound card port is connected to a transceiver’s headphone or speaker output for operating digital modes?Start
T4A05What is the proper location for an external SWR meter?Start
T4A06Which of the following connections might be used between a voice transceiver and a computer for digital operation?Start
T4A07How is a computer’s sound card used when conducting digital communications?Start
T4A08Which of the following conductors provides the lowest impedance to RF signals?Start
T4A09Which of the following could you use to cure distorted audio caused by RF current on the shield of a microphone cable?Start
T4A10What is the source of a high-pitched whine that varies with engine speed in a mobile transceiver’s receive audio?Start
T4A11Where should the negative return connection of a mobile transceiver's power cable be connected?Start
T4B01What may happen if a transmitter is operated with the microphone gain set too high?Start
T4B02Which of the following can be used to enter the operating frequency on a modern transceiver?Start
T4B03What is the purpose of the squelch control on a transceiver?Start
T4B04What is a way to enable quick access to a favorite frequency on your transceiver?Start
T4B05Which of the following would reduce ignition interference to a receiver?Start
T4B06Which of the following controls could be used if the voice pitch of a single-sideband signal seems too high or low?Start
T4B07What does the term “RIT” mean?Start
T4B08What is the advantage of having multiple receive bandwidth choices on a multimode transceiver?Start
T4B09Which of the following is an appropriate receive filter bandwidth for minimizing noise and interference for SSB reception?Start
T4B10Which of the following is an appropriate receive filter bandwidth for minimizing noise and interference for CW reception?Start
T4B11What is the function of automatic gain control, or AGC?Start
T4B12Which of the following could be used to remove power line noise or ignition noise?Start
T4B13Which of the following is a use for the scanning function of an FM transceiver?Start
T5A01Electrical current is measured in which of the following units?Start
T5A02Electrical power is measured in which of the following units?Start
T5A03What is the name for the flow of electrons in an electric circuit?Start
T5A04What is the name for a current that flows only in one direction?Start
T5A06How much voltage does a mobile transceiver typically require?Start
T5A07Which of the following is a good electrical conductor?Start
T5A08Which of the following is a good electrical insulator?Start
T5A09What is the name for a current that reverses direction on a regular basis?Start
T5A10Which term describes the rate at which electrical energy is used?Start
T5A11What is the unit of electromotive force?Start
T5A12What describes the number of times per second that an alternating current makes a complete cycle?Start
T5A13In which type of circuit is current the same through all components?Start
T5A14In which type of circuit is voltage the same across all components?Start
T5B01How many milliamperes is 1.5 amperes?Start
T5B02What is another way to specify a radio signal frequency of 1,500,000 hertz?Start
T5B03How many volts are equal to one kilovolt?Start
T5B04How many volts are equal to one microvolt?Start
T5B05Which of the following is equal to 500 milliwatts?Start
T5B06If an ammeter calibrated in amperes is used to measure a 3000-milliampere current, what reading would it show?Start
T5B07If a frequency display calibrated in megahertz shows a reading of 3.525 MHz, what would it show if it were calibrated in kilohertz?Start
T5B08How many microfarads are equal to 1,000,000 picofarads?Start
T5B09What is the approximate amount of change, measured in decibels (dB), of a power increase from 5 watts to 10 watts?Start
T5B10What is the approximate amount of change, measured in decibels (dB), of a power decrease from 12 watts to 3 watts?Start
T5B11What is the amount of change, measured in decibels (dB), of a power increase from 20 watts to 200 watts?Start
T5B12Which of the following frequencies is equal to 28,400 kHz?Start
T5B13If a frequency display shows a reading of 2425 MHz, what frequency is that in GHz?Start
T5C01What is the ability to store energy in an electric field called?Start
T5C02What is the basic unit of capacitance?Start
T5C03What is the ability to store energy in a magnetic field called?Start
T5C04What is the basic unit of inductance?Start
T5C05What is the unit of frequency?Start
T5C06What does the abbreviation “RF” refer to?Start
T5C07A radio wave is made up of what type of energy?Start
T5C08What is the formula used to calculate electrical power in a DC circuit?Start
T5C09How much power is being used in a circuit when the applied voltage is 13.8 volts DC and the current is 10 amperes?Start
T5C10How much power is being used in a circuit when the applied voltage is 12 volts DC and the current is 2.5 amperes?Start
T5C11How many amperes are flowing in a circuit when the applied voltage is 12 volts DC and the load is 120 watts?Start
T5C12What is impedance?Start
T5C13What is a unit of impedance?Start
T5C14What is the proper abbreviation for megahertz?Start
T5D01What formula is used to calculate current in a circuit?Start
T5D02What formula is used to calculate voltage in a circuit?Start
T5D03What formula is used to calculate resistance in a circuit?Start
T5D04What is the resistance of a circuit in which a current of 3 amperes flows through a resistor connected to 90 volts?Start
T5D05What is the resistance in a circuit for which the applied voltage is 12 volts and the current flow is 1.5 amperes?Start
T5D06What is the resistance of a circuit that draws 4 amperes from a 12-volt source?Start
T5D07What is the current in a circuit with an applied voltage of 120 volts and a resistance of 80 ohms?Start
T5D08What is the current through a 100-ohm resistor connected across 200 volts?Start
T5D09What is the current through a 24-ohm resistor connected across 240 volts?Start
T5D10What is the voltage across a 2-ohm resistor if a current of 0.5 amperes flows through it?Start
T5D11What is the voltage across a 10-ohm resistor if a current of 1 ampere flows through it?Start
T5D12What is the voltage across a 10-ohm resistor if a current of 2 amperes flows through it?Start
T5D13What happens to current at the junction of two components in series?Start
T5D14What happens to current at the junction of two components in parallel?Start
T5D15What is the voltage across each of two components in series with a voltage source?Start
T5D16What is the voltage across each of two components in parallel with a voltage source?Start
T6A01What electrical component opposes the flow of current in a DC circuit?Start
T6A02What type of component is often used as an adjustable volume control?Start
T6A03What electrical parameter is controlled by a potentiometer?Start
T6A04What electrical component stores energy in an electric field?Start
T6A05What type of electrical component consists of two or more conductive surfaces separated by an insulator?Start
T6A06What type of electrical component stores energy in a magnetic field?Start
T6A07What electrical component usually is constructed as a coil of wire?Start
T6A08What electrical component is used to connect or disconnect electrical circuits?Start
T6A09What electrical component is used to protect other circuit components from current overloads?Start
T6A10Which of the following battery types is rechargeable?Start
T6A11Which of the following battery types is not rechargeable?Start
T6B01What class of electronic components uses a voltage or current signal to control current flow?Start
T6B02What electronic component allows current to flow in only one direction?Start
T6B03Which of these components can be used as an electronic switch or amplifier?Start
T6B04Which of the following components can consist of three layers of semiconductor material?Start
T6B05Which of the following electronic components can amplify signals?Start
T6B06How is the cathode lead of a semiconductor diode often marked on the package?Start
T6B07What does the abbreviation LED stand for?Start
T6B08What does the abbreviation FET stand for?Start
T6B09What are the names of the two electrodes of a diode?Start
T6B10Which of the following could be the primary gain-producing component in an RF power amplifier?Start
T6B11What is the term that describes a device's ability to amplify a signal?Start
T6C01What is the name of an electrical wiring diagram that uses standard component symbols?Start
T6C02What is component 1 in figure T1?Start
T6C03What is component 2 in figure T1?Start
T6C04What is component 3 in figure T1?Start
T6C05What is component 4 in figure T1?Start
T6C06What is component 6 in figure T2?Start
T6C07What is component 8 in figure T2?Start
T6C08What is component 9 in figure T2?Start
T6C09What is component 4 in figure T2?Start
T6C10What is component 3 in figure T3?Start
T6C11What is component 4 in figure T3?Start
T6C12What do the symbols on an electrical schematic represent?Start
T6C13Which of the following is accurately represented in electrical schematics?Start
T6D01Which of the following devices or circuits changes an alternating current into a varying direct current signal?Start
T6D02What is a relay?Start
T6D03What type of switch is represented by component 3 in figure T2?Start
T6D04Which of the following displays an electrical quantity as a numeric value?Start
T6D05What type of circuit controls the amount of voltage from a power supply?Start
T6D06What component is commonly used to change 120V AC house current to a lower AC voltage for other uses?Start
T6D07Which of the following is commonly used as a visual indicator?Start
T6D08Which of the following is combined with an inductor to make a tuned circuit?Start
T6D09What is the name of a device that combines several semiconductors and other components into one package?Start
T6D10What is the function of component 2 in Figure T1?Start
T6D11Which of the following is a resonant or tuned circuit?Start
T6D12Which of the following is a common reason to use shielded wire?Start
T7A01Which term describes the ability of a receiver to detect the presence of a signal?Start
T7A02What is a transceiver?Start
T7A03Which of the following is used to convert a radio signal from one frequency to another?Start
T7A04Which term describes the ability of a receiver to discriminate between multiple signals?Start
T7A05What is the name of a circuit that generates a signal at a specific frequency?Start
T7A06What device converts the RF input and output of a transceiver to another band?Start
T7A07What is meant by “PTT”?Start
T7A08Which of the following describes combining speech with an RF carrier signal?Start
T7A09What is the function of the SSB/CW-FM switch on a VHF power amplifier?Start
T7A10What device increases the low-power output from a handheld transceiver?Start
T7A11Where is an RF preamplifier installed?Start
T7B01What can you do if you are told your FM handheld or mobile transceiver is over-deviating?Start
T7B02What would cause a broadcast AM or FM radio to receive an amateur radio transmission unintentionally?Start
T7B03Which of the following can cause radio frequency interference?Start
T7B04Which of the following is a way to reduce or eliminate interference from an amateur transmitter to a nearby telephone?Start
T7B05How can overload of a non-amateur radio or TV receiver by an amateur signal be reduced or eliminated?Start
T7B06Which 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?Start
T7B07Which of the following can reduce overload to a VHF transceiver from a nearby FM broadcast station?Start
T7B08What should you do if something in a neighbor’s home is causing harmful interference to your amateur station?Start
T7B09What is a Part 15 device?Start
T7B10What might be a problem if you receive a report that your audio signal through the repeater is distorted or unintelligible?Start
T7B11What is a symptom of RF feedback in a transmitter or transceiver?Start
T7B12What should be the first step to resolve cable TV interference from your ham radio transmission?Start
T7C01What is the primary purpose of a dummy load?Start
T7C02Which of the following instruments can be used to determine if an antenna is resonant at the desired operating frequency?Start
T7C03What, in general terms, is standing wave ratio (SWR)?Start
T7C04What reading on an SWR meter indicates a perfect impedance match between the antenna and the feed line?Start
T7C05Why do most solid-state amateur radio transmitters reduce output power as SWR increases?Start
T7C06What does an SWR reading of 4:1 indicate?Start
T7C07What happens to power lost in a feed line?Start
T7C08What instrument other than an SWR meter could you use to determine if a feed line and antenna are properly matched?Start
T7C09Which of the following is the most common cause for failure of coaxial cables?Start
T7C10Why should the outer jacket of coaxial cable be resistant to ultraviolet light?Start
T7C11What is a disadvantage of air core coaxial cable when compared to foam or solid dielectric types?Start
T7C12What does a dummy load consist of?Start
T7D01Which instrument would you use to measure electric potential or electromotive force?Start
T7D02What is the correct way to connect a voltmeter to a circuit?Start
T7D03How is a simple ammeter connected to a circuit?Start
T7D04Which instrument is used to measure electric current?Start
T7D05What instrument is used to measure resistance?Start
T7D06Which of the following might damage a multimeter?Start
T7D07Which of the following measurements are commonly made using a multimeter?Start
T7D08Which of the following types of solder is best for radio and electronic use?Start
T7D09What is the characteristic appearance of a cold solder joint?Start
T7D10What is probably happening when an ohmmeter, connected across an unpowered circuit, initially indicates a low resistance and then shows increasing resistance with time?Start
T7D11Which of the following precautions should be taken when measuring circuit resistance with an ohmmeter?Start
T7D12Which of the following precautions should be taken when measuring high voltages with a voltmeter?Start
T8A01Which of the following is a form of amplitude modulation?Start
T8A02What type of modulation is most commonly used for VHF packet radio transmissions?Start
T8A03Which type of voice mode is most often used for long-distance (weak signal) contacts on the VHF and UHF bands?Start
T8A04Which type of modulation is most commonly used for VHF and UHF voice repeaters?Start
T8A05Which of the following types of emission has the narrowest bandwidth?Start
T8A06Which sideband is normally used for 10 meter HF, VHF, and UHF single-sideband communications?Start
T8A07What is an advantage of single sideband (SSB) over FM for voice transmissions?Start
T8A08What is the approximate bandwidth of a single sideband (SSB) voice signal?Start
T8A09What is the approximate bandwidth of a VHF repeater FM phone signal?Start
T8A10What is the typical bandwidth of analog fast-scan TV transmissions on the 70 centimeter band?Start
T8A11What is the approximate maximum bandwidth required to transmit a CW signal?Start
T8B01What telemetry information is typically transmitted by satellite beacons?Start
T8B02What is the impact of using too much effective radiated power on a satellite uplink?Start
T8B03Which of the following are provided by satellite tracking programs?Start
T8B04What mode of transmission is commonly used by amateur radio satellites?Start
T8B05What is a satellite beacon?Start
T8B06Which of the following are inputs to a satellite tracking program?Start
T8B07With regard to satellite communications, what is Doppler shift?Start
T8B08What is meant by the statement that a satellite is operating in mode U/V?Start
T8B09What causes spin fading of satellite signals?Start
T8B10What do the initials LEO tell you about an amateur satellite?Start
T8B11Who may receive telemetry from a space station?Start
T8B12Which of the following is a good way to judge whether your uplink power is neither too low nor too high?Start
T8C02Which of these items would be useful for a hidden transmitter hunt?Start
T8C03What operating activity involves contacting as many stations as possible during a specified period?Start
T8C04Which of the following is good procedure when contacting another station in a radio contest?Start
T8C05What is a grid locator?Start
T8C06How is access to some IRLP nodes accomplished?Start
T8C07What is meant by Voice Over Internet Protocol (VoIP) as used in amateur radio?Start
T8C08What is the Internet Radio Linking Project (IRLP)?Start
T8C09How might you obtain a list of active nodes that use VoIP?Start
T8C10What must be done before you may use the EchoLink system to communicate using a repeater?Start
T8C11What name is given to an amateur radio station that is used to connect other amateur stations to the internet?Start
T8D01Which of the following is a digital communications mode?Start
T8D02What does the term “APRS” mean?Start
T8D03Which of the following devices is used to provide data to the transmitter when sending automatic position reports from a mobile amateur radio station?Start
T8D04What type of transmission is indicated by the term "NTSC?"Start
T8D05Which of the following is an application of APRS (Automatic Packet Reporting System)?Start
T8D06What does the abbreviation "PSK" mean?Start
T8D07Which of the following best describes DMR (Digital Mobile Radio)?Start
T8D08Which of the following may be included in packet transmissions?Start
T8D09What code is used when sending CW in the amateur bands?Start
T8D10Which of the following operating activities is supported by digital mode software in the WSJT suite?Start
T8D11What is an ARQ transmission system?Start
T8D12Which of the following best describes Broadband-Hamnet(TM), also referred to as a high-speed multi-media network?Start
T8D13What is FT8?Start
T8D14What is an electronic keyer?Start
T9A01What is a beam antenna?Start
T9A02Which of the following describes a type of antenna loading?Start
T9A03Which of the following describes a simple dipole oriented parallel to the Earth's surface?Start
T9A04What is a disadvantage of the “rubber duck” antenna supplied with most handheld radio transceivers when compared to a full-sized quarter-wave antenna?Start
T9A05How would you change a dipole antenna to make it resonant on a higher frequency?Start
T9A06What type of antennas are the quad, Yagi, and dish?Start
T9A07What is a disadvantage of using a handheld VHF transceiver, with its integral antenna, inside a vehicle?Start
T9A08What is the approximate length, in inches, of a quarter-wavelength vertical antenna for 146 MHz?Start
T9A09What is the approximate length, in inches, of a half-wavelength 6 meter dipole antenna?Start
T9A10In which direction does a half-wave dipole antenna radiate the strongest signal?Start
T9A11What is the gain of an antenna?Start
T9A12What is an advantage of using a properly mounted 5/8 wavelength antenna for VHF or UHF mobile service?Start
T9B01Why is it important to have low SWR when using coaxial cable feed line?Start
T9B02What is the impedance of most coaxial cables used in amateur radio installations?Start
T9B03Why is coaxial cable the most common feed line selected for amateur radio antenna systems?Start
T9B04What is the major function of an antenna tuner (antenna coupler)?Start
T9B05In general, what happens as the frequency of a signal passing through coaxial cable is increased?Start
T9B06Which of the following connectors is most suitable for frequencies above 400 MHz?Start
T9B07Which of the following is true of PL-259 type coax connectors?Start
T9B08Why should coax connectors exposed to the weather be sealed against water intrusion?Start
T9B09What can cause erratic changes in SWR readings?Start
T9B10What is the electrical difference between RG-58 and RG-8 coaxial cable?Start
T9B11Which of the following types of feed line has the lowest loss at VHF and UHF?Start