Where should lightning arrestors be located?
What is the purpose of a power supply interlock?
Which of the following is required for lightning protection ground rods?
Which of the following is a danger from lead-tin solder?
Which of the following is true of an emergency generator installation?
What should be done before climbing a tower that supports electrically powered devices?
Which of these choices should be observed when climbing a tower using a safety harness?
Which of the following is covered by the National Electrical Code?
Which of the following conditions will cause a ground fault circuit interrupter (GFCI) to disconnect AC power?
Where should the station's lightning protection ground system be located?
Which size of fuse or circuit breaker would be appropriate to use with a circuit that uses AWG number 14 wiring?
According to the National Electrical Code, what is the minimum wire size that may be used safely for wiring with a 20-ampere circuit breaker?
Which wire or wires in a four-conductor 240 VAC circuit should be attached to fuses or circuit breakers?
What stations are subject to the FCC rules on RF exposure?
What precaution should be taken if you install an indoor transmitting antenna?
What should be done if evaluation shows that a neighbor might experience more than the allowable limit of RF exposure from the main lobe of a directional antenna?
What type of instrument can be used to accurately measure an RF field strength?
Which of the following steps must an amateur operator take to ensure compliance with RF safety regulations?
What is the effect of modulation duty cycle on RF exposure?
What must you do if your station fails to meet the FCC RF exposure exemption criteria?
What must you do if an evaluation of your station shows that the RF energy radiated by your station exceeds permissible limits for possible human absorption?
What does "time averaging" mean when evaluating RF radiation exposure?
How can you determine that your station complies with FCC RF exposure regulations?
Which of the following is used to determine RF exposure from a transmitted signal?
What is one way that RF energy can affect human body tissue?
What is the common name of a dipole with a single central support?
Which of the following is a disadvantage of multiband antennas?
In which direction or directions does an electrically small loop (less than 1/10 wavelength in circumference) have nulls in its radiation pattern?
What is the primary use of a Beverage antenna?
How does a "screwdriver" mobile antenna adjust its feed point impedance?
Which of the following describes a log-periodic antenna?
Which of the following is an advantage of a log-periodic antenna?
What is an advantage of vertically stacking horizontally polarized Yagi antennas?
What is the primary function of antenna traps?
In which direction is the maximum radiation from a VHF/UHF "halo" antenna?
What is the feed point impedance of an end-fed half-wave antenna?
Which of the following antenna types will be most effective as a near vertical incidence skywave (NVIS) antenna for short-skip communications on 40 meters during the day?
Which of the following is a characteristic of using a gamma match with a Yagi antenna?
What is a beta or hairpin match?
Which of the following can be adjusted to optimize forward gain, front-to-back ratio, or SWR bandwidth of a Yagi antenna?
In free space, how does the gain of two three-element, horizontally polarized Yagi antennas spaced vertically 1/2 wavelength apart typically compare to the gain of a single three-element Yagi?
What is meant by the "main lobe" of a directive antenna?
What does "front-to-back ratio" mean in reference to a Yagi antenna?
What is the primary effect of increasing boom length and adding directors to a Yagi antenna?
How does antenna gain in dBi compare to gain stated in dBd for the same antenna?
How do the lengths of a three-element Yagi reflector and director compare to that of the driven element?
What is the approximate length of the driven element of a Yagi antenna?
Which of the following would increase the bandwidth of a Yagi antenna?
What is the approximate length for a 1/4 wave monopole antenna cut for 28.5 MHz?
What is the approximate length for a 1/2 wave dipole antenna cut for 3.550 MHz?
What is the approximate length for a 1/2 wave dipole antenna cut for 14.250 MHz?
Which of the following is an advantage of using a horizontally polarized as compared to a vertically polarized HF antenna?
How does the feed point impedance of a 1/2 wave dipole change as the feed point is moved from the center toward the ends?
How does the feed point impedance of a horizontal 1/2 wave dipole antenna change as the antenna height is reduced to 1/10 wavelength above ground?
Where should the radial wires of a ground-mounted vertical antenna system be placed?
How does antenna height affect the azimuthal radiation pattern of a horizontal dipole HF antenna at elevation angles higher than about 45 degrees?
What is the radiation pattern of a dipole antenna in free space in a plane containing the conductor?
Which of the following best describes the radiation pattern of a quarter-wave ground-plane vertical antenna?
Which of the following is a common way to adjust the feed point impedance of an elevated quarter-wave ground-plane vertical antenna to be approximately 50 ohms?
What is a characteristic of a random-wire HF antenna connected directly to the transmitter?
What is the effect of transmission line loss on SWR measured at the input to the line?
What standing wave ratio results from connecting a 50-ohm feed line to a 10-ohm resistive load?
What standing wave ratio results from connecting a 50-ohm feed line to a 200-ohm resistive load?
If the SWR on an antenna feed line is 5:1, and a matching network at the transmitter end of the feed line is adjusted to present a 1:1 SWR to the transmitter, what is the resulting SWR on the feed line?
What must be done to prevent standing waves on a feed line connected to an antenna?
In what units is RF feed line loss usually expressed?
How does the attenuation of coaxial cable change with increasing frequency?
What causes reflected power at an antenna's feed point?
What is the nominal characteristic impedance of "window line" transmission line?
What is the relationship between high standing wave ratio (SWR) and transmission line loss?
Which of the following factors determine the characteristic impedance of a parallel conductor feed line?
Which of the following provide digital voice modes?
What does an FT8 signal report of +3 mean?
Which of the following describes a waterfall display?
What is indicated on a waterfall display by one or more vertical lines on either side of a data mode or RTTY signal?
Which type of code is used for sending characters in a PSK31 signal?
How are the two separate frequencies of a Frequency Shift Keyed (FSK) signal identified?
How does forward error correction (FEC) allow the receiver to correct data errors?
Which is true of mesh network microwave nodes?
Which of the following statements is true about PSK31?
Which of the following narrow-band digital modes can receive signals with very low signal-to-noise ratios?
What action results from a failure to exchange information due to excessive transmission attempts when using an ARQ mode?
In an ARQ mode, what is meant by a NAK response to a transmitted packet?
Which of the following describes Baudot code?
What part of a packet radio frame contains the routing and handling information?
Which digital mode is used as a low-power beacon for assessing HF propagation?
On what band do amateurs share channels with the unlicensed Wi-Fi service?
Which of the following is an odd-order intermodulation product of frequencies F1 and F2?
What process combines two signals in a non-linear circuit to produce unwanted spurious outputs?
What combination of a mixer's Local Oscillator (LO) and RF input frequencies is found in the output?
What is the relationship between transmitted symbol rate and bandwidth?
Why is it good to match receiver bandwidth to the bandwidth of the operating mode?
Why is it important to know the duty cycle of the mode you are using when transmitting?
What is the frequency deviation for a 12.21 MHz reactance modulated oscillator in a 5 kHz deviation, 146.52 MHz FM phone transmitter?
What is the total bandwidth of an FM phone transmission having 5 kHz deviation and 3 kHz modulating frequency?
Which intermodulation products are closest to the original signal frequencies?
What is the stage in a VHF FM transmitter that generates a harmonic of a lower frequency signal to reach the desired operating frequency?
What is another term for the mixing of two RF signals?
What is the term for interference from a signal at twice the IF frequency from the desired signal?
Which mixer input is varied or tuned to convert signals of different frequencies to an intermediate frequency (IF)?
What is link margin?
What is a link budget?
What is QPSK modulation?
What is the modulation envelope of an AM signal?
What is meant by the term "flat-topping" when referring to an amplitude-modulated phone signal?
What type of modulation is used by FT8?
Which of the following is an effect of overmodulation?
Which of the following phone emissions uses the narrowest bandwidth?
Which of the following is characteristic of QPSK31?
What type of modulation varies the instantaneous power level of the RF signal?
What emission is produced by a reactance modulator connected to a transmitter RF amplifier stage?
What is the name of the process that changes the instantaneous frequency of an RF wave to convey information?
What is the name of the process that changes the phase angle of an RF signal to convey information?
How is direct binary FSK modulation generated?
The bandwidth of a band-pass filter is measured between what two frequencies?
What term specifies a filter's maximum ability to reject signals outside its passband?
What is the frequency above which a low-pass filter's output power is less than half the input power?
Which of these functions is performed by software in a software-defined radio (SDR)?
What is an advantage of using I-Q modulation with software-defined radios (SDRs)?
What is the phase difference between the I and Q RF signals that software-defined radio (SDR) equipment uses for modulation and demodulation?
Which parameter affects receiver sensitivity?
What term specifies a filter's attenuation inside its passband?
Which of the following is an advantage of a digital signal processing (DSP) filter compared to an analog filter?
Which of the following is characteristic of a direct digital synthesizer (DDS)?
How is a product detector used?
What is one reason to use an impedance matching transformer at a transmitter output?
What output is produced by a balanced modulator?
What circuit is used to select one of the sidebands from a balanced modulator?
For which of the following modes is a Class C power stage appropriate for amplifying a modulated signal?
Which of the following describes a linear amplifier?
What determines the frequency of an LC oscillator?
How is the efficiency of an RF power amplifier determined?
Which of the following are basic components of a sine wave oscillator?
What is a shift register?
How many states does a 3-bit binary counter have?
In a Class A amplifier, what percentage of the time does the amplifying device conduct?
Which of the following describes the function of a two-input AND gate?
Which of these classes of amplifiers has the highest efficiency?
What is the purpose of neutralizing an amplifier?
Which symbol in Figure G7-1 represents a tapped inductor?
Which symbol in Figure G7-1 represents a solid core transformer?
Which symbol in figure G7-1 represents an NPN junction transistor?
Which symbol in figure G7-1 represents a Zener diode?
Which symbol in figure G7-1 represents a field effect transistor?
Which of the following is characteristic of a switchmode power supply as compared to a linear power supply?
What is the output waveform of an unfiltered full-wave rectifier connected to a resistive load?
What portion of the AC cycle is converted to DC by a full-wave rectifier?
What portion of the AC cycle is converted to DC by a half-wave rectifier?
What is characteristic of a half-wave rectifier in a power supply?
Which type of rectifier circuit uses two diodes and a center-tapped transformer?
Which of the following components are used in a power supply filter network?
What is the function of a power supply bleeder resistor?
Which of these connector types is commonly used for low frequency or dc signal connections to a transceiver?
What is an SMA connector?
How does a ferrite bead or core reduce common-mode RF current on the shield of a coaxial cable?
How is an LED biased when emitting light?
Which of the following describes a type N connector?
What kind of device is an integrated circuit operational amplifier?
What is an advantage of using a ferrite core toroidal inductor?
What is a typical upper frequency limit for low SWR operation of 50-ohm BNC connectors?
Which of the following is an advantage of CMOS integrated circuits compared to TTL integrated circuits?
What is meant by the term MMIC?
What determines the performance of a ferrite core at different frequencies?
What is the primary purpose of a screen grid in a vacuum tube?
What happens when an inductor is operated above its self-resonant frequency?
Which element of a vacuum tube regulates the flow of electrons between cathode and plate?
Which of the following describes MOSFET construction?
Which of the following is characteristic of low voltage ceramic capacitors?
What are the operating points for a bipolar transistor used as a switch?
Why should wire-wound resistors not be used in RF circuits?
What is the approximate forward threshold voltage of a silicon junction diode?
Which of the following is characteristic of an electrolytic capacitor?
What is the approximate forward threshold voltage of a germanium diode?
What is an advantage of batteries with low internal resistance?
What is the minimum allowable discharge voltage for maximum life of a standard 12-volt lead-acid battery?
Which of the following components should be added to an inductor to increase the inductance?
Which of the following components should be added to a capacitor to increase the capacitance?
What is the capacitance of a 20-microfarad capacitor connected in series with a 50-microfarad capacitor?
What is the inductance of a circuit with a 20-millihenry inductor connected in series with a 50-millihenry inductor?
What is the inductance of three 10-millihenry inductors connected in parallel?
What is the capacitance of three 100-microfarad capacitors connected in series?
What is the equivalent capacitance of two 5.0-nanofarad capacitors and one 750-picofarad capacitor connected in parallel?
What transformer turns ratio matches an antenna's 600-ohm feed point impedance to a 50-ohm coaxial cable?
What is the voltage output of a transformer with a 500-turn primary and a 1500-turn secondary when 120 VAC is applied to the primary?
Why is the primary winding wire of a voltage step-up transformer usually a larger size than that of the secondary winding?
What is the approximate total resistance of a 100- and a 200-ohm resistor in parallel?
What is the total resistance of a 10-, a 20-, and a 50-ohm resistor connected in parallel?
What is the output voltage if an input signal is applied to the secondary winding of a 4:1 voltage step-down transformer instead of the primary winding?
What causes a voltage to appear across the secondary winding of a transformer when an AC voltage source is connected across its primary winding?
What is the output PEP of 500 volts peak-to-peak across a 50-ohm load?
What is the output PEP of an unmodulated carrier if the average power is 1060 watts?
What is the RMS voltage across a 50-ohm dummy load dissipating 1200 watts?
What is the ratio of PEP to average power for an unmodulated carrier?
What percentage of power loss is equivalent to a loss of 1 dB?
What is the RMS voltage of a sine wave with a value of 17 volts peak?
What is the peak-to-peak voltage of a sine wave with an RMS voltage of 120 volts?
What value of an AC signal produces the same power dissipation in a resistor as a DC voltage of the same value?
What is the PEP produced by 200 volts peak-to-peak across a 50-ohm dummy load?
How many watts are consumed when a current of 7.0 milliamperes flows through a 1,250-ohm resistance?
How many watts of electrical power are consumed by a 12 VDC light bulb that draws 0.2 amperes?
How many watts of electrical power are consumed if 400 VDC is supplied to an 800-ohm load?
How does the total current relate to the individual currents in a circuit of parallel resistors?
What dB change represents a factor of two increase or decrease in power?
What occurs in an LC circuit at resonance?
What letter is used to represent reactance?
Which of the following devices can be used for impedance matching at radio frequencies?
What unit is used to measure reactance?
What is impedance?
What is the term for the inverse of impedance?
How does a capacitor react to AC?
How does an inductor react to AC?
Which of the following is opposition to the flow of alternating current in a capacitor?
Which of the following is opposition to the flow of alternating current in an inductor?
What is reactance?
What happens when inductive and capacitive reactance are equal in a series LC circuit?
What precaution should be taken when connecting a solar panel to a lithium iron phosphate battery?
Why should a series diode be connected between a solar panel and a storage battery that is being charged by the panel?
What is the approximate open-circuit voltage from a fully illuminated silicon photovoltaic cell?
In what configuration are the individual cells in a solar panel connected together?
Which of the following may cause receive interference to an HF transceiver installed in a vehicle?
What is one disadvantage of using a shortened mobile antenna as opposed to a full-size antenna?
Which of the following most limits an HF mobile installation?
Why should DC power for a 100-watt HF transceiver not be supplied by a vehicle's auxiliary power socket?
Which of the following direct, fused power connections would be the best for a 100-watt HF mobile installation?
What is the purpose of a corona ball on an HF mobile antenna?
What is the purpose of a capacitance hat on a mobile antenna?
How close to the upper edge of a band's phone segment should your displayed carrier frequency be when using 3 kHz wide USB?
How close to the lower edge of a band's phone segment should your displayed carrier frequency be when using 3 kHz wide LSB?
What frequency range is occupied by a 3 kHz USB signal with the displayed carrier frequency set to 14.347 MHz?
What frequency range is occupied by a 3 kHz LSB signal when the displayed carrier frequency is set to 7.178 MHz?
How much must the power output of a transmitter be raised to change the S meter reading on a distant receiver from S8 to S9?
How much change in signal strength is typically represented by one S unit?
How does a signal that reads 20 dB over S9 compare to one that reads S9 on a receiver, assuming a properly calibrated S meter?
What does an S meter measure?
What is the effect of an incorrectly adjusted speech processor?
How does a speech processor affect a single sideband phone signal?
What is the purpose of a speech processor in a transceiver?
Why must all metal enclosures of station equipment be grounded?
What technique helps to minimize RF "hot spots" in an amateur station?
What could be a symptom caused by a ground loop in your station's audio connections?
How can the effects of ground loops be minimized?
Which of the following would reduce RF interference caused by common-mode current on an audio cable?
Why should soldered joints not be used in lightning protection ground connections?
What is a possible effect of a resonant ground connection?
What is a possible cause of high voltages that produce RF burns?
What sound is heard from an audio device experiencing RF interference from a CW transmitter?
What sound is heard from an audio device experiencing RF interference from a single sideband phone transmitter?
Which of the following could be a cause of interference covering a wide range of frequencies?
Which of the following might be useful in reducing RF interference to audio frequency circuits?
Which of the following can be measured with an antenna analyzer?
What effect can strong signals from nearby transmitters have on an antenna analyzer?
Which of the following must be connected to an antenna analyzer when it is being used for SWR measurements?
Which of the following can be determined with a directional wattmeter?
When is an analog multimeter preferred to a digital multimeter?
What transmitter performance parameter does a two-tone test analyze?
What signals are used to conduct a two-tone test?
What is an advantage of a digital multimeter as compared to an analog multimeter?
Why do voltmeters have high input impedance?
What signal source is connected to the vertical input of an oscilloscope when checking the RF envelope pattern of a transmitted signal?
Which of the following is the best instrument to use for checking the keying waveform of a CW transmitter?
Which of the following is an advantage of an oscilloscope versus a digital voltmeter?
What item of test equipment contains horizontal and vertical channel amplifiers?
What is the purpose of using a receive attenuator?
Which of the following is a common use of the dual-VFO feature on a transceiver?
Why should the ALC system be inactive when transmitting AFSK data signals?
What is the function of an electronic keyer?
What is the purpose of delaying RF output after activating a transmitter's keying line to an external amplifier?
What is the correct adjustment for the LOAD or COUPLING control of a vacuum tube RF power amplifier?
What happens as a receiver's noise reduction control level is increased?
What is the purpose of an antenna tuner?
Why is automatic level control (ALC) used with an RF power amplifier?
What is the effect on plate current of the correct setting of a vacuum-tube RF power amplifier's TUNE control?
How does a noise blanker work?
What is the benefit of using the opposite or "reverse" sideband when receiving CW?
What is the purpose of the notch filter found on many HF transceivers?
Which ionospheric region is the most absorbent of signals below 10 MHz during daylight hours?
What is near vertical incidence skywave (NVIS) propagation?
What type of propagation allows signals to be heard in the transmitting station's skip zone?
Why are HF scatter signals in the skip zone usually weak?
What makes HF scatter signals often sound distorted?
What is a characteristic of HF scatter?
Why is long-distance communication on the 40-, 60-, 80-, and 160-meter bands more difficult during the day?
What does the term "critical angle" mean, as applied to radio wave propagation?
Why is skip propagation via the F2 region longer than that via the other ionospheric regions?
What is meant by the term "critical frequency" at a given incidence angle?
Which ionospheric region is closest to the surface of Earth?
Which of the following is typical of the lower HF frequencies during the summer?
What happens to HF propagation when the LUF exceeds the MUF?
What is the approximate maximum distance along the Earth's surface normally covered in one hop using the E region?
What is the approximate maximum distance along the Earth's surface normally covered in one hop using the F2 region?
What does MUF stand for?
What does LUF stand for?
What usually happens to radio waves with frequencies below the LUF?
How does the ionosphere affect radio waves with frequencies below the MUF and above the LUF?
Which of the following is a way to determine current propagation on a desired band from your station?
Which frequency will have the least attenuation for long-distance skip propagation?
What factors affect the MUF?
What is a characteristic of skywave signals arriving at your location by both short-path and long-path propagation?
How is long distance radio communication usually affected by the charged particles that reach Earth from solar coronal holes?
What does the A-index measure?
What does the K-index measure?
How long does it take a coronal mass ejection to affect radio propagation on Earth?
What causes HF propagation conditions to vary periodically in a 26- to 28-day cycle?
How can high geomagnetic activity benefit radio communications?
How can a geomagnetic storm affect HF propagation?
At what point in the solar cycle does the 20-meter band usually support worldwide propagation during daylight hours?
What is a geomagnetic storm?
What is the solar flux index?
Which of the following are the least reliable bands for long-distance communications during periods of low solar activity?
Approximately how long does it take the increased ultraviolet and X-ray radiation from a solar flare to affect radio propagation on Earth?
What effect does a sudden ionospheric disturbance have on the daytime ionospheric propagation?
How does a higher sunspot number affect HF propagation?
Which of the following is a common location for FT8?
What could be wrong if you cannot decode an RTTY or other FSK signal even though it is apparently tuned in properly?
What is another name for a Winlink Remote Message Server?
Which of the following describes Winlink?
What is the primary purpose of an Amateur Radio Emergency Data Network (AREDN) mesh network?
Which of the following is a way to establish contact with a digital messaging system gateway station?
How do you join a contact between two stations using the PACTOR protocol?
In what segment of the 20-meter band are most digital mode operations commonly found?
Which of the following is required when using FT8?
What is the most common frequency shift for RTTY emissions in the amateur HF bands?
What is the standard sideband for JT65, JT9, FT4, or FT8 digital signal when using AFSK?
Which of the following is good practice when choosing a transmitting frequency to answer a station calling CQ using FT8?
What symptoms may result from other signals interfering with a PACTOR or VARA transmission?
What is VARA?
Which mode is normally used when sending RTTY signals via AFSK with an SSB transmitter?
Why are signal reports typically exchanged at the beginning of an HF contact?
What is QRP operation?
Which of the following is required when participating in a contest on HF frequencies?
Why do many amateurs keep a station log?
Which of the following are examples of the NATO Phonetic Alphabet?
How is a directional antenna pointed when making a "long-path" contact with another station?
Which of the following indicates that you are looking for an HF contact with any station?
Which of the following describes an azimuthal projection map?
What procedure may be used by Volunteer Monitors to localize a station whose continuous carrier is holding a repeater on in their area?
Which of the following are objectives of the Volunteer Monitor Program?
What is the Volunteer Monitor Program?
What does the Q signal "QRV" mean?
What does the Q signal "QRN" mean?
What does the Q signal "QSL" mean?
What prosign is sent to indicate the end of a formal message when using CW?
When sending CW, what does a "C" mean when added to the RST report?
What does the term "zero beat" mean in CW operation?
What is the best speed to use when answering a CQ in Morse code?
What does the Q signal "QRL" mean?
What does it mean when a CW operator sends "KN" at the end of a transmission?
What should you do if a CW station sends "QRS"?
Which of the following describes full break-in CW operation (QSK)?
How often may RACES training drills and tests be routinely conducted without special authorization?
Which of the following is good amateur practice for net management?
Who may be the control operator of an amateur station transmitting in RACES to assist relief operations during a disaster?
What is the voluntary band plan restriction for US stations transmitting within the 48 contiguous states in the 50.1 MHz to 50.125 MHz band segment?
Which of the following complies with commonly accepted amateur practice when choosing a frequency on which to initiate a call?
How can you avoid harmful interference on an apparently clear frequency before calling CQ on CW or phone?
When selecting an SSB transmitting frequency, what minimum separation should be used to minimize interference to stations on adjacent frequencies?
When selecting a CW transmitting frequency, what minimum separation from other stations should be used to minimize interference to stations on adjacent frequencies?
What is good amateur practice if propagation changes during a contact creating interference from other stations using the frequency?
What is the first thing you should do if you are communicating with another amateur station and hear a station in distress break in?
Which of the following is true concerning access to frequencies?
What control is typically adjusted for proper ALC setting on a single sideband transceiver?
Generally, who should respond to a station in the contiguous 48 states calling "CQ DX"?
Which of the following statements is true of VOX operation versus PTT operation?
Why do most amateur stations use lower sideband on the 160-, 75-, and 40-meter bands?
What is the recommended way to break into a phone contact?
Which of the following statements is true of single sideband (SSB)?
Which of the following is an advantage of using single sideband, as compared to other analog voice modes on the HF amateur bands?
Which mode of voice communication is most commonly used on the HF amateur bands?
Which mode is most commonly used for voice communications on the 17- and 12-meter bands?
Which mode is most commonly used for SSB voice communications in the VHF and UHF bands?
Which mode is most commonly used for voice communications on the 160-, 75-, and 40-meter bands?
Which mode is most commonly used for voice communications on frequencies of 14 MHz or higher?
When may third-party messages be transmitted via remote control?
On what bands may automatically controlled stations transmitting RTTY or data emissions communicate with other automatically controlled digital stations?
Why should an amateur operator normally avoid transmitting on 14.100, 18.110, 21.150, 24.930 and 28.200 MHz?
Under what circumstances are messages that are sent via digital modes exempt from Part 97 third-party rules that apply to other modes of communication?
What is the maximum PEP output allowed for spread spectrum transmissions?
In what part of the 2.4 GHz band may an amateur station communicate with non-licensed Wi-Fi stations?
The frequency allocations of which ITU region apply to radio amateurs operating in North and South America?
What are the restrictions on messages sent to a third party in a country with which there is a Third-Party Agreement?
Which of the following conditions require a licensed amateur radio operator to take specific steps to avoid harmful interference to other users or facilities?
What is required to conduct communications with a digital station operating under automatic control outside the automatic control band segments?
When may a 10-meter repeater retransmit the 2-meter signal from a station that has a Technician class control operator?
Which of the following would disqualify a third party from participating in sending a message via an amateur station?
When operating a station in South America by remote control over the internet from the US, what regulations apply?
What action is required to obtain a new General class license after a previously held license has expired and the two-year grace period has passed?
What is the minimum age that one must be to qualify as an accredited Volunteer Examiner?
How long is a Certificate of Successful Completion of Examination (CSCE) valid for exam element credit?
Which of the following criteria must be met for a non-US citizen to be an accredited Volunteer Examiner?
Volunteer Examiners are accredited by what organization?
Until an upgrade to General class is shown in the FCC database, when must a Technician licensee identify with "AG" after their call sign?
When operating a US station by remote control from outside the country, what license is required of the control operator?
Who must observe the administration of a Technician class license examination?
On which of the following band segments may you operate if you are a Technician class operator and have an unexpired Certificate of Successful Completion of Examination (CSCE) for General class privileges?
What license examinations may you administer as an accredited Volunteer Examiner holding a General class operator license?
Who may receive partial credit for the elements represented by an expired amateur radio license?
What measurement is specified by FCC rules that regulate maximum power?
What is the maximum power limit on the 60-meter band?
What must be done before using a new digital protocol on the air?
What is the limit for transmitter power on the 1.8 MHz band?
What is the limit for transmitter power on the 28 MHz band for a General Class control operator?
Which of the following is required by the FCC rules when operating in the 60-meter band?
What is the maximum bandwidth permitted by FCC rules for amateur radio stations transmitting on USB frequencies in the 60-meter band?
What is the maximum transmitter power an amateur station may use on the 12-meter band?
What is the maximum transmitter power an amateur station may use on 10.140 MHz?
Who or what determines "good engineering and good amateur practice" as applied to the operation of an amateur station in all respects not covered by the Part 97 rules?
What is the power limit for beacon stations?
On what HF frequencies are automatically controlled beacons permitted?
When is it permissible to communicate with amateur stations in countries outside the areas administered by the Federal Communications Commission?
What are the restrictions on the use of abbreviations or procedural signals in the amateur service?
Under what conditions are state and local governments permitted to regulate amateur radio antenna structures?
Which of the following one-way transmissions are permitted?
Which of the following transmissions is permitted for all amateur stations?
Which of the following is a purpose of a beacon station as identified in the FCC rules?
With which of the following conditions must beacon stations comply?
What is the maximum height above ground for an antenna structure not near a public use airport without requiring notification to the FAA and registration with the FCC?
When General class licensees are not permitted to use the entire voice portion of a band, which portion of the voice segment is available to them?
What portion of the 10-meter band is available for repeater use?
Which of the following frequencies is within the General class portion of the 15-meter band?
Which HF bands have segments exclusively allocated to Amateur Extra licensees?
On which amateur frequencies in the 10-meter band may stations with a General class control operator transmit CW emissions?
Which of the following applies when the FCC rules designate the amateur service as a secondary user on a band?
On which of the following frequencies are General class licensees prohibited from operating as control operator?
Which of the following amateur bands is restricted to communication only on specific channels, rather than frequency ranges?
On which of the following bands is image transmission prohibited?
On which of the following bands is phone operation prohibited?
On which HF and/or MF amateur bands are there portions where General class licensees cannot transmit?