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Questions in US Amateur Radio - Technician (Element 2, 2022-2026)

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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 circuit does black wire insulation indicate in a three-wire 120 V cable?Start
T0A04What is the purpose of a fuse in an electrical circuit?Start
T0A05Why should a 5-ampere fuse never be replaced with a 20-ampere fuse?Start
T0A06What is a good way to guard against electrical shock at your station?Start
T0A07Where should a lightning arrester be installed in a coaxial feed line?Start
T0A08Where should a fuse or circuit breaker be installed in a 120V AC power circuit?Start
T0A09What should be done to all external ground rods or earth connections?Start
T0A10What hazard is caused by charging or discharging a battery too quickly?Start
T0A11What hazard exists in a power supply immediately after turning it off?Start
T0A12Which of the following precautions should be taken when measuring high voltages with a voltmeter?Start
T0B01Which of the following is good practice when installing ground wires on a tower for lightning protection?Start
T0B02What is required when 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 safety wire through a turnbuckle used to tension guy lines?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
T0B08Which is 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
T0C01What type of radiation are radio signals?Start
T0C02At which of the following frequencies does maximum permissible exposure have the lowest value?Start
T0C03How does the allowable power density for RF safety change if duty cycle changes from 100 percent to 50 percent?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 whether your station complies with FCC RF exposure regulations?Start
T0C07What hazard is created by touching an antenna during a transmission?Start
T0C08Which of the following actions can reduce exposure to RF radiation?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
T0C13Who is responsible for ensuring that no person is exposed to RF energy above the FCC exposure limits?Start
T1A01Which of the following is part of the Basis and Purpose of the Amateur Radio Service?Start
T1A02Which agency regulates and enforces the rules for the Amateur Radio Service in the United States?Start
T1A03What do the FCC rules state 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 proves that the FCC has issued an 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
T1A10What is the Radio Amateur Civil Emergency Service (RACES)?Start
T1A11When is willful interference to other amateur radio stations permitted?Start
T1B01Which of the following frequency ranges are available for phone operation by Technician licensees?Start
T1B02Which amateurs may contact the International Space Station (ISS) on VHF bands?Start
T1B03Which frequency is in the 6 meter amateur band?Start
T1B04Which amateur band includes 146.52 MHz?Start
T1B05How may amateurs use the 219 to 220 MHz segment of 1.25 meter band?Start
T1B06On which HF bands does a Technician class operator have phone privileges?Start
T1B07Which of the following VHF/UHF band segments are limited to CW only?Start
T1B08How are US amateurs restricted in segments of bands where the Amateur Radio Service is secondary?Start
T1B09Why should you not set your transmit frequency to be exactly at the edge of an amateur band or sub-band?Start
T1B10Where may SSB phone be used in amateur bands above 50 MHz?Start
T1B11What is the maximum peak envelope power output for Technician class operators in their HF band segments?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 are an FCC-licensed amateur radio station permitted to make?Start
T1C04What may happen if the FCC is unable to reach you by email?Start
T1C05Which of the following is a valid Technician class call sign format?Start
T1C06From which of the following locations may an FCC-licensed amateur station transmit?Start
T1C07Which of the following can result in revocation of the station license or suspension of the operator license?Start
T1C08What is the normal term for an FCC-issued amateur radio license?Start
T1C09What is the grace period for renewal if an amateur license expires?Start
T1C10How soon after passing the examination for your first amateur radio license may you transmit on the amateur radio bands?Start
T1C11If your license has expired and is still within the allowable grace period, may you continue to transmit on the amateur radio bands?Start
T1D01With which countries are FCC-licensed amateur radio stations prohibited from exchanging communications?Start
T1D02Under which of the following circumstances are one-way transmissions by an amateur station prohibited?Start
T1D03When is it permissible to transmit messages encoded to obscure 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
T1D09When may amateur stations transmit information in support of broadcasting, program production, or news gathering, assuming no other means is available?Start
T1D10How does the FCC define broadcasting for the Amateur Radio Service?Start
T1D11When may an amateur station transmit without identifying on the air?Start
T1E01When may an amateur station 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 frequency privileges of an amateur station?Start
T1E05What is an amateur station’s control point?Start
T1E06When, under normal circumstances, may a Technician class licensee be the control operator of a station operating in an Amateur Extra Class band segment?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 are required for 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 and its records be available for FCC inspection?Start
T1F02How often must you identify with your FCC-assigned call sign when using tactical call signs such as “Race Headquarters”?Start
T1F03When are you required to transmit your assigned call sign?Start
T1F04What language may you use for 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 self-assigned indicators are acceptable when 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 licensed amateur operator?Start
T1F08What is the definition of 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 if a repeater inadvertently retransmits communications that violate the FCC rules?Start
T1F11Which of the following is a requirement for the issuance of a club station license grant?Start
T2A01What 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
T2A09Which of the following indicates that a station is 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
T2A12What should you do before calling CQ?Start
T2B01How is a VHF/UHF transceiver’s “reverse” function used?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
T2B03Which of the following describes a linked repeater network?Start
T2B04Which of the following could be the reason you are unable to access a repeater whose output you can hear?Start
T2B05What would cause your FM transmission audio to be distorted on voice peaks?Start
T2B06What type of signaling uses pairs of audio tones?Start
T2B07How can you join a digital repeater’s “talkgroup”?Start
T2B08Which of the following applies when two stations transmitting on the same frequency interfere with each other?Start
T2B09Why are simplex channels designated in the VHF/UHF band plans?Start
T2B10Which Q signal indicates that you are receiving interference from other stations?Start
T2B11Which Q signal indicates that you are changing frequency?Start
T2B12What is the purpose of the color code used on DMR repeater systems?Start
T2B13What is the purpose of a squelch function?Start
T2C01When do FCC rules NOT apply to the operation of an amateur station?Start
T2C02Which of the following are typical duties of a Net Control Station?Start
T2C03What technique is used to ensure that voice messages containing unusual words are received correctly?Start
T2C04What is RACES?Start
T2C05What does the term “traffic” refer to in net operation?Start
T2C06What is the Amateur Radio Emergency Service (ARES)?Start
T2C07Which of the following is standard practice when you participate in 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 “check” in a radiogram header?Start
T3A01Why do VHF signal strengths sometimes vary greatly when the antenna is moved only a few feet?Start
T3A02What is the effect of vegetation on UHF and microwave signals?Start
T3A03What antenna polarization is normally used for long-distance CW and SSB contacts on the VHF and UHF bands?Start
T3A04What happens when 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 communicate with a distant repeater if buildings or obstructions are blocking the direct line of sight path?Start
T3A06What is the meaning of the term “picket fencing”?Start
T3A07What weather condition might decrease range at microwave frequencies?Start
T3A08What is a likely cause of irregular fading of signals propagated by the ionosphere?Start
T3A09Which of the following results from the fact that signals propagated by the ionosphere are elliptically polarized?Start
T3A10What effect does multi-path propagation have on data transmissions?Start
T3A11Which region of the atmosphere can refract or bend HF and VHF radio waves?Start
T3A12What is the effect of fog and rain on signals in the 10 meter and 6 meter bands?Start
T3B01What is the relationship between the electric and magnetic fields of an electromagnetic wave?Start
T3B02What property of a radio wave defines its polarization?Start
T3B03What are the two components of a radio wave?Start
T3B04What is the velocity of a radio wave traveling through free space?Start
T3B05What is the relationship between wavelength and frequency?Start
T3B06What is the formula for converting frequency to approximate wavelength in meters?Start
T3B07In addition to frequency, which of the following is used to identify amateur radio bands?Start
T3B08What frequency range is referred to as VHF?Start
T3B09What frequency range is referred to as UHF?Start
T3B10What frequency range is referred to as HF?Start
T3B11What is the approximate velocity of a radio wave in free space?Start
T3C01Why are simplex UHF signals rarely heard beyond their radio horizon?Start
T3C02What is a characteristic of HF communication compared with communications on VHF and higher frequencies?Start
T3C03What is a characteristic of VHF signals received via auroral backscatter?Start
T3C04Which of the following types of propagation is most commonly associated with occasional strong signals on the 10, 6, and 2 meter bands from beyond the radio horizon?Start
T3C05Which of the following effects may allow radio signals to travel beyond obstructions between the transmitting and receiving stations?Start
T3C06What type of propagation 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 region?Start
T3C10Which of the following bands may provide long-distance communications via the ionosphere’s F region during the peak of the sunspot cycle?Start
T3C11Why is the radio horizon for VHF and UHF signals more distant than the visual horizon?Start
T4A01Which of the following is an appropriate power supply rating for a typical 50 watt output mobile FM transceiver?Start
T4A02Which of the following should be considered when selecting an accessory SWR meter?Start
T4A03Why are short, heavy-gauge wires used for a transceiver’s DC power connection?Start
T4A04How are the transceiver audio input and output connected in a station configured to operate using FT8?Start
T4A05Where should an RF power meter be installed?Start
T4A06What signals are used in a computer-radio interface for digital mode operation?Start
T4A07Which of the following connections is made between a computer and a transceiver to use computer software when operating digital modes?Start
T4A08Which of the following conductors is preferred for bonding at RF?Start
T4A09How can you determine the length of time that equipment can be powered from a battery?Start
T4A10What function is performed with a transceiver and a digital mode hot spot?Start
T4A11Where should the negative power return of a mobile transceiver be connected in a vehicle?Start
T4A12What is an electronic keyer?Start
T4B01What is the effect of excessive microphone gain on SSB transmissions?Start
T4B02Which of the following can be used to enter a transceiver’s operating frequency?Start
T4B03How is squelch adjusted so that a weak FM signal can be heard?Start
T4B04What is a way to enable quick access to a favorite frequency or channel on your transceiver?Start
T4B05What does the scanning function of an FM transceiver do?Start
T4B06Which of the following controls could be used if the voice pitch of a single-sideband signal returning to your CQ call seems too high or low?Start
T4B07What does a DMR “code plug” contain?Start
T4B08What is the advantage of having multiple receive bandwidth choices on a multimode transceiver?Start
T4B09How is a specific group of stations selected on a digital voice transceiver?Start
T4B10Which of the following receiver filter bandwidths provides the best signal-to-noise ratio for SSB reception?Start
T4B11Which of the following must be programmed into a D-STAR digital transceiver before transmitting?Start
T4B12What is the result of tuning an FM receiver above or below a signal’s frequency?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 are the units of electrical resistance?Start
T5A05What is the electrical term for the force that causes electron flow?Start
T5A06What is the unit of frequency?Start
T5A07Why are metals generally good conductors of electricity?Start
T5A08Which of the following is a good electrical insulator?Start
T5A09Which of the following describes alternating current?Start
T5A10Which term describes the rate at which electrical energy is used?Start
T5A11What type of current flow is opposed by resistance?Start
T5A12What describes the number of times per second that an alternating current makes a complete cycle?Start
T5B01How many milliamperes is 1.5 amperes?Start
T5B02Which is equal to 1,500,000 hertz?Start
T5B03Which is equal to one kilovolt?Start
T5B04Which is equal to one microvolt?Start
T5B05Which is equal to 500 milliwatts?Start
T5B06Which is equal to 3000 milliamperes?Start
T5B07Which is equal to 3.525 MHz?Start
T5B08Which is equal to 1,000,000 picofarads?Start
T5B09Which decibel value most closely represents a power increase from 5 watts to 10 watts?Start
T5B10Which decibel value most closely represents a power decrease from 12 watts to 3 watts?Start
T5B11Which decibel value represents a power increase from 20 watts to 200 watts?Start
T5B12Which is equal to 28400 kHz?Start
T5B13Which is equal to 2425 MHz?Start
T5C01What describes the ability to store energy in an electric field?Start
T5C02What is the unit of capacitance?Start
T5C03What describes the ability to store energy in a magnetic field?Start
T5C04What is the unit of inductance?Start
T5C05What is the unit of impedance?Start
T5C06What does the abbreviation “RF” mean?Start
T5C07What is the abbreviation for megahertz?Start
T5C08What is the formula used to calculate electrical power (P) in a DC circuit?Start
T5C09How much power is delivered by a voltage of 13.8 volts DC and a current of 10 amperes?Start
T5C10How much power is delivered by a voltage of 12 volts DC and a current of 2.5 amperes?Start
T5C11How much current is required to deliver 120 watts at a voltage of 12 volts DC?Start
T5C12What is impedance?Start
T5C13What is the abbreviation for kilohertz?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 when connected to 90 volts?Start
T5D05What is the resistance of 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
T5D13In which type of circuit is DC current the same through all components?Start
T5D14In which type of circuit is voltage the same across all components?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 conductive surfaces separated by an insulator?Start
T6A06What type of electrical component stores energy in a magnetic field?Start
T6A07What electrical component is typically constructed as a coil of wire?Start
T6A08What is the function of an SPDT switch?Start
T6A09What electrical component is used to protect other circuit components from current overloads?Start
T6A10Which of the following battery chemistries is rechargeable?Start
T6A11Which of the following battery chemistries is not rechargeable?Start
T6A12What type of switch is represented by component 3 in figure T-2?Start
T6B01Which is true about forward voltage drop in a diode?Start
T6B02What electronic component allows current to flow in only one direction?Start
T6B03Which of these components can be used as an electronic switch?Start
T6B04Which of the following components can consist of three regions of semiconductor material?Start
T6B05What type of transistor has a gate, drain, and source?Start
T6B06How is the cathode lead of a semiconductor diode often marked on the package?Start
T6B07What causes a light-emitting diode (LED) to emit light?Start
T6B08What does the abbreviation FET stand for?Start
T6B09What are the names for the electrodes of a diode?Start
T6B10Which of the following can provide power gain?Start
T6B11What is the term that describes a device's ability to amplify a signal?Start
T6B12What are the names of the electrodes of a bipolar junction transistor?Start
T6C01What is the name of an electrical wiring diagram that uses standard component symbols?Start
T6C02What is component 1 in figure T-1?Start
T6C03What is component 2 in figure T-1?Start
T6C04What is component 3 in figure T-1?Start
T6C05What is component 4 in figure T-1?Start
T6C06What is component 6 in figure T-2?Start
T6C07What is component 8 in figure T-2?Start
T6C08What is component 9 in figure T-2?Start
T6C09What is component 4 in figure T-2?Start
T6C10What is component 3 in figure T-3?Start
T6C11What is component 4 in figure T-3?Start
T6C12Which 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
T6D03Which of the following is a reason to use shielded wire?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 changes 120 V AC power 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 resonant 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 T-1?Start
T6D11Which of the following is a resonant or tuned circuit?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 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 the function of a transceiver’s PTT input?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 transmitted output power from a 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 could you use to cure distorted audio caused by RF current on the shield of a microphone cable?Start
T7B05How can fundamental 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 of a VHF transceiver by a nearby commercial FM station?Start
T7B08What should you do if something in a neighbor’s home is causing harmful interference to your amateur station?Start
T7B09What should be the first step to resolve non-fiber optic cable TV interference caused by your amateur radio transmission?Start
T7B10What might be a problem if you receive a report that your audio signal through an FM repeater is distorted or unintelligible?Start
T7B11What is a symptom of RF feedback in a transmitter or transceiver?Start
T7C01What is the primary purpose of a dummy load?Start
T7C02Which of the following is used to determine if an antenna is resonant at the desired operating frequency?Start
T7C03What does a dummy load consist of?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 transmitters reduce output power as SWR increases beyond a certain level?Start
T7C06What does an SWR reading of 4:1 indicate?Start
T7C07What happens to power lost in a feed line?Start
T7C08Which instrument can be used to determine SWR?Start
T7C09Which of the following causes 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
T7D01Which instrument would you use to measure electric potential?Start
T7D02How is a voltmeter connected to a component to measure applied voltage?Start
T7D03When configured to measure current, how is a multimeter connected to a component?Start
T7D04Which instrument is used to measure electric current?Start
T7D06Which of the following can damage a multimeter?Start
T7D07Which of the following measurements are made using a multimeter?Start
T7D08Which of the following types of solder should not be used for radio and electronic applications?Start
T7D09What is the characteristic appearance of a cold tin-lead solder joint?Start
T7D10What reading indicates that an ohmmeter is connected across a large, discharged capacitor?Start
T7D11Which of the following precautions should be taken when measuring in-circuit resistance with an ohmmeter?Start
T8A01Which of the following is a form of amplitude modulation?Start
T8A02What type of modulation is commonly used for VHF packet radio transmissions?Start
T8A03Which type of voice mode is often used for long-distance (weak signal) contacts on the VHF and UHF bands?Start
T8A04Which type of modulation is commonly used for VHF and UHF voice repeaters?Start
T8A05Which of the following types of signal has the narrowest bandwidth?Start
T8A06Which sideband is normally used for 10 meter HF, VHF, and UHF single-sideband communications?Start
T8A07What is a characteristic of single sideband (SSB) compared to FM?Start
T8A08What is the approximate bandwidth of a typical single sideband (SSB) voice signal?Start
T8A09What is the approximate bandwidth of a VHF repeater FM voice signal?Start
T8A10What is the approximate bandwidth of AM fast-scan TV transmissions?Start
T8A11What is the approximate bandwidth required to transmit a CW signal?Start
T8A12Which of the following is a disadvantage of FM compared with single sideband?Start
T8B01What telemetry information is typically transmitted by satellite beacons?Start
T8B02What is the impact of using excessive 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
T8B07What is Doppler shift in reference to satellite communications?Start
T8B08What is meant by the statement that a satellite is operating in U/V mode?Start
T8B09What causes spin fading of satellite signals?Start
T8B10What is a LEO satellite?Start
T8B11Who may receive telemetry from a space station?Start
T8B12Which of the following is a way to determine whether your satellite uplink power is neither too low nor too high?Start
T8C01Which of the following methods is used to locate sources of noise interference or jamming?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 contest?Start
T8C05What is a grid locator?Start
T8C06How is over the air access to IRLP nodes accomplished?Start
T8C07What is Voice Over Internet Protocol (VoIP)?Start
T8C08What is the Internet Radio Linking Project (IRLP)?Start
T8C09Which of the following protocols enables an amateur station to transmit through a repeater without using a radio to initiate the transmission?Start
T8C10What is required before using the EchoLink system?Start
T8C11What is an amateur radio station that connects other amateur stations to the internet?Start
T8D01Which of the following is a digital communications mode?Start
T8D02What is a “talkgroup” on a DMR repeater?Start
T8D03What kind of data can be transmitted by APRS?Start
T8D04What type of transmission is indicated by the term "NTSC?"Start
T8D05Which of the following is an application of APRS?Start
T8D06What does the abbreviation "PSK" mean?Start
T8D07Which of the following describes DMR?Start
T8D08Which of the following is included in packet radio transmissions?Start
T8D09What is CW?Start
T8D10Which of the following operating activities is supported by digital mode software in the WSJT-X software suite?Start
T8D11What is an ARQ transmission system?Start
T8D12Which of the following best describes an amateur radio mesh network?Start
T8D13What is FT8?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 Earth's surface?Start
T9A04What is a disadvantage of the short, flexible antenna supplied with most handheld radio transceivers, compared to a full-sized quarter-wave antenna?Start
T9A05Which of the following increases the resonant frequency of a dipole antenna?Start
T9A06Which of the following types of antenna offers the greatest gain?Start
T9A07What is a disadvantage of using a handheld VHF transceiver with a flexible 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 antenna gain?Start
T9A12What is an advantage of a 5/8 wavelength whip antenna for VHF or UHF mobile service?Start
T9B01What is a benefit of low SWR?Start
T9B02What is the most common impedance of coaxial cables used in amateur radio?Start
T9B03Why is coaxial cable the most common feed line for amateur radio antenna systems?Start
T9B04What is the major function of an antenna tuner (antenna coupler)?Start
T9B05What happens as the frequency of a signal in coaxial cable is increased?Start
T9B06Which of the following RF connector types is most suitable for frequencies above 400 MHz?Start
T9B07Which of the following is true of PL-259 type coax connectors?Start
T9B08Which of the following is a source of loss in coaxial feed line?Start
T9B09What can cause erratic changes in SWR?Start
T9B10What is the electrical difference between RG-58 and RG-213 coaxial cable?Start
T9B11Which of the following types of feed line has the lowest loss at VHF and UHF?Start
T9B12What is standing wave ratio (SWR)?Start