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Unofficial practice questions, not affiliated with the National Conference of Volunteer Examiner Coordinators (NCVEC). Bank checked September 30, 2026.
Question pool: 2023-2027 General Class (Element 3) question pool, NCVEC, 6th errata of February 4, 2026, valid from July 1, 2023 to June 30, 2027.
The frequency allocations of which ITU region apply to radio amateurs operating in North and South America?Pool question G1E06. Source: NCVEC 2023-2027 General pool, question G1E06; 47 CFR 97.301, ITU Radio Regulations
How long is a Certificate of Successful Completion of Examination (CSCE) valid for exam element credit?Pool question G1D09. Source: NCVEC 2023-2027 General pool, question G1D09; 47 CFR 97.9(b)
In what part of the 2.4 GHz band may an amateur station communicate with non-licensed Wi-Fi stations?Pool question G1E07. Source: NCVEC 2023-2027 General pool, question G1E07; 47 CFR 97.111
On what bands may automatically controlled stations transmitting RTTY or data emissions communicate with other automatically controlled digital stations?Pool question G1E11. Source: NCVEC 2023-2027 General pool, question G1E11; 47 CFR 97.221, 97.305
On what HF frequencies are automatically controlled beacons permitted?Pool question G1B09. Source: NCVEC 2023-2027 General pool, question G1B09; 47 CFR 97.203(d)
On which amateur frequencies in the 10-meter band may stations with a General class control operator transmit CW emissions?Pool question G1A07. Source: NCVEC 2023-2027 General pool, question G1A07; 47 CFR 97.305(a)
Show all 423 questions (417 more)
G1: Commission’s Rules, continued
On which HF and/or MF amateur bands are there portions where General class licensees cannot transmit?Pool question G1A01. Source: NCVEC 2023-2027 General pool, question G1A01; 47 CFR 97.301(d)
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?Pool question G1D03. Source: NCVEC 2023-2027 General pool, question G1D03; 47 CFR 97.9(b)
On which of the following bands is image transmission prohibited?Pool question G1A03. Source: NCVEC 2023-2027 General pool, question G1A03; 47 CFR 97.305
On which of the following bands is phone operation prohibited?Pool question G1A02. Source: NCVEC 2023-2027 General pool, question G1A02; 47 CFR 97.305
On which of the following frequencies are General class licensees prohibited from operating as control operator?Pool question G1A05. Source: NCVEC 2023-2027 General pool, question G1A05; 47 CFR 97.301(d)
Under what conditions are state and local governments permitted to regulate amateur radio antenna structures?Pool question G1B06. Source: NCVEC 2023-2027 General pool, question G1B06; 47 CFR 97.15(b), PRB-1, 101 FCC 2d 952 (1985)
Until an upgrade to General class is shown in the FCC database, when must a Technician licensee identify with “AG” after their call sign?Pool question G1D06. Source: NCVEC 2023-2027 General pool, question G1D06; 47 CFR 97.119(f)(2)
Volunteer Examiners are accredited by what organization?Pool question G1D07. Source: NCVEC 2023-2027 General pool, question G1D07; 47 CFR 97.509(b)(1)
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?Pool question G1D11. Source: NCVEC 2023-2027 General pool, question G1D11; 47 CFR 97.505
What are the restrictions on messages sent to a third party in a country with which there is a Third-Party Agreement?Pool question G1E05. Source: NCVEC 2023-2027 General pool, question G1E05; 47 CFR 97.115(a)(2), 97.117
What are the restrictions on the use of abbreviations or procedural signals in the amateur service?Pool question G1B07. Source: NCVEC 2023-2027 General pool, question G1B07; 47 CFR 97.113(a)(4)
What is required to conduct communications with a digital station operating under automatic control outside the automatic control band segments?Pool question G1E03. Source: NCVEC 2023-2027 General pool, question G1E03; 47 CFR 97.221
What is the limit for transmitter power on the 1.8 MHz band?Pool question G1C06. Source: NCVEC 2023-2027 General pool, question G1C06; 47 CFR 97.313
What is the limit for transmitter power on the 28 MHz band for a General Class control operator?Pool question G1C05. Source: NCVEC 2023-2027 General pool, question G1C05; 47 CFR 97.313
What is the maximum bandwidth permitted by FCC rules for amateur radio stations transmitting on USB frequencies in the 60-meter band?Pool question G1C03. Source: NCVEC 2023-2027 General pool, question G1C03; 47 CFR 97.303(h)(1)
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?Pool question G1B01. Source: NCVEC 2023-2027 General pool, question G1B01; 47 CFR 97.15(a)
What is the maximum PEP output allowed for spread spectrum transmissions?Pool question G1E08. Source: NCVEC 2023-2027 General pool, question G1E08; 47 CFR 97.313(j)
What is the maximum transmitter power an amateur station may use on 10.140 MHz?Pool question G1C01. Source: NCVEC 2023-2027 General pool, question G1C01; 47 CFR 97.313(c)(1)
What is the maximum transmitter power an amateur station may use on the 12-meter band?Pool question G1C02. Source: NCVEC 2023-2027 General pool, question G1C02; 47 CFR 97.313
What is the minimum age that one must be to qualify as an accredited Volunteer Examiner?Pool question G1D10. Source: NCVEC 2023-2027 General pool, question G1D10; 47 CFR 97.509(b)(2)
What is the power limit for beacon stations?Pool question G1B10. Source: NCVEC 2023-2027 General pool, question G1B10; 47 CFR 97.203(c)
What license examinations may you administer as an accredited Volunteer Examiner holding a General class operator license?Pool question G1D02. Source: NCVEC 2023-2027 General pool, question G1D02; 47 CFR 97.509(b)(3)(i)
What measurement is specified by FCC rules that regulate maximum power?Pool question G1C11. Source: NCVEC 2023-2027 General pool, question G1C11; 47 CFR 97.313
What must be done before using a new digital protocol on the air?Pool question G1C07. Source: NCVEC 2023-2027 General pool, question G1C07; 47 CFR 97.309(a)(4)
What portion of the 10-meter band is available for repeater use?Pool question G1A10. Source: NCVEC 2023-2027 General pool, question G1A10; 47 CFR 97.205(b)
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?Pool question G1A11. Source: NCVEC 2023-2027 General pool, question G1A11; 47 CFR 97.301
When is it permissible to communicate with amateur stations in countries outside the areas administered by the Federal Communications Commission?Pool question G1B08. Source: NCVEC 2023-2027 General pool, question G1B08; 47 CFR 97.111(a)(1)
When may a 10-meter repeater retransmit the 2-meter signal from a station that has a Technician class control operator?Pool question G1E02. Source: NCVEC 2023-2027 General pool, question G1E02; 47 CFR 97.205(b)
When may third-party messages be transmitted via remote control?Pool question G1E12. Source: NCVEC 2023-2027 General pool, question G1E12; 47 CFR 97.115
When operating a station in South America by remote control over the internet from the US, what regulations apply?Pool question G1D12. Source: NCVEC 2023-2027 General pool, question G1D12; 47 CFR 97.507
When operating a US station by remote control from outside the country, what license is required of the control operator?Pool question G1D05. Source: NCVEC 2023-2027 General pool, question G1D05; 47 CFR 97.7
Which HF bands have segments exclusively allocated to Amateur Extra licensees?Pool question G1A08. Source: NCVEC 2023-2027 General pool, question G1A08; 47 CFR 97.301(b)
Which of the following applies when the FCC rules designate the amateur service as a secondary user on a band?Pool question G1A06. Source: NCVEC 2023-2027 General pool, question G1A06; 47 CFR 97.303
Which of the following conditions require a licensed amateur radio operator to take specific steps to avoid harmful interference to other users or facilities?Pool question G1E04. Source: NCVEC 2023-2027 General pool, question G1E04; 47 CFR 97.13(b), 97.303, 97.311(b)
Which of the following criteria must be met for a non-US citizen to be an accredited Volunteer Examiner?Pool question G1D08. Source: NCVEC 2023-2027 General pool, question G1D08; 47 CFR 97.509(b)(3)
Which of the following frequencies is within the General class portion of the 15-meter band?Pool question G1A09. Source: NCVEC 2023-2027 General pool, question G1A09; 47 CFR 97.301(d)
Which of the following is a purpose of a beacon station as identified in the FCC rules?Pool question G1B03. Source: NCVEC 2023-2027 General pool, question G1B03; 47 CFR 97.3(a)(9)
Which of the following is required by the FCC rules when operating in the 60-meter band?Pool question G1C04. Source: NCVEC 2023-2027 General pool, question G1C04; 47 CFR 97.303(i)
Which of the following one-way transmissions are permitted?Pool question G1B05. Source: NCVEC 2023-2027 General pool, question G1B05; 47 CFR 97.111((5)(b)
Which of the following transmissions is permitted for all amateur stations?Pool question G1B04. Source: NCVEC 2023-2027 General pool, question G1B04; 47 CFR 97.113(c)
Which of the following would disqualify a third party from participating in sending a message via an amateur station?Pool question G1E01. Source: NCVEC 2023-2027 General pool, question G1E01; 47 CFR 97.115(b)(2)
Who may receive partial credit for the elements represented by an expired amateur radio license?Pool question G1D01. Source: NCVEC 2023-2027 General pool, question G1D01; 47 CFR 97.501, 97.505(a)
Who must observe the administration of a Technician class license examination?Pool question G1D04. Source: NCVEC 2023-2027 General pool, question G1D04; 47 CFR 97.509(3)(i)(c)
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?Pool question G1B11. Source: NCVEC 2023-2027 General pool, question G1B11; 47 CFR 97.101(a)
Why should an amateur operator normally avoid transmitting on 14.100, 18.110, 21.150, 24.930 and 28.200 MHz?Pool question G1E10. Source: NCVEC 2023-2027 General pool, question G1E10; 47 CFR 97.101
With which of the following conditions must beacon stations comply?Pool question G1B02. Source: NCVEC 2023-2027 General pool, question G1B02; 47 CFR 97.203(b)
G2: Operating Procedures 60
Generally, who should respond to a station in the contiguous 48 states calling “CQ DX”?Pool question G2A11. Source: NCVEC 2023-2027 General pool, question G2A11
How can you avoid harmful interference on an apparently clear frequency before calling CQ on CW or phone?Pool question G2B06. Source: NCVEC 2023-2027 General pool, question G2B06
How do you join a contact between two stations using the PACTOR protocol?Pool question G2E09. Source: NCVEC 2023-2027 General pool, question G2E09
How is a directional antenna pointed when making a “long-path” contact with another station?Pool question G2D06. Source: NCVEC 2023-2027 General pool, question G2D06
How often may RACES training drills and tests be routinely conducted without special authorization?Pool question G2B11. Source: NCVEC 2023-2027 General pool, question G2B11; 47 CFR 97.407(d)(4)
In what segment of the 20-meter band are most digital mode operations commonly found?Pool question G2E08. Source: NCVEC 2023-2027 General pool, question G2E08
What control is typically adjusted for proper ALC setting on a single sideband transceiver?Pool question G2A12. Source: NCVEC 2023-2027 General pool, question G2A12
What could be wrong if you cannot decode an RTTY or other FSK signal even though it is apparently tuned in properly?Pool question G2E14. Source: NCVEC 2023-2027 General pool, question G2E14
What does it mean when a CW operator sends “KN” at the end of a transmission?Pool question G2C03. Source: NCVEC 2023-2027 General pool, question G2C03
What does the Q signal “QRL?” mean?Pool question G2C04. Source: NCVEC 2023-2027 General pool, question G2C04
What does the Q signal “QRN” mean?Pool question G2C10. Source: NCVEC 2023-2027 General pool, question G2C10
What does the Q signal “QRV” mean?Pool question G2C11. Source: NCVEC 2023-2027 General pool, question G2C11
What does the Q signal “QSL” mean?Pool question G2C09. Source: NCVEC 2023-2027 General pool, question G2C09
What does the term “zero beat” mean in CW operation?Pool question G2C06. Source: NCVEC 2023-2027 General pool, question G2C06
What is another name for a Winlink Remote Message Server?Pool question G2E13. Source: NCVEC 2023-2027 General pool, question G2E13
What is good amateur practice if propagation changes during a contact creating interference from other stations using the frequency?Pool question G2B03. Source: NCVEC 2023-2027 General pool, question G2B03
What is QRP operation?Pool question G2D10. Source: NCVEC 2023-2027 General pool, question G2D10
What is the best speed to use when answering a CQ in Morse code?Pool question G2C05. Source: NCVEC 2023-2027 General pool, question G2C05
What is the first thing you should do if you are communicating with another amateur station and hear a station in distress break in?Pool question G2B02. Source: NCVEC 2023-2027 General pool, question G2B02
What is the most common frequency shift for RTTY emissions in the amateur HF bands?Pool question G2E06. Source: NCVEC 2023-2027 General pool, question G2E06
What is the primary purpose of an Amateur Radio Emergency Data Network (AREDN) mesh network?Pool question G2E11. Source: NCVEC 2023-2027 General pool, question G2E11
What is the recommended way to break into a phone contact?Pool question G2A08. Source: NCVEC 2023-2027 General pool, question G2A08
What is the standard sideband for JT65, JT9, FT4, or FT8 digital signal when using AFSK?Pool question G2E05. Source: NCVEC 2023-2027 General pool, question G2E05
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?Pool question G2B08. Source: NCVEC 2023-2027 General pool, question G2B08
What is the Volunteer Monitor Program?Pool question G2D01. Source: NCVEC 2023-2027 General pool, question G2D01
What is VARA?Pool question G2E02. Source: NCVEC 2023-2027 General pool, question G2E02
What procedure may be used by Volunteer Monitors to localize a station whose continuous carrier is holding a repeater on in their area?Pool question G2D03. Source: NCVEC 2023-2027 General pool, question G2D03
What prosign is sent to indicate the end of a formal message when using CW?Pool question G2C08. Source: NCVEC 2023-2027 General pool, question G2C08
What should you do if a CW station sends “QRS?”Pool question G2C02. Source: NCVEC 2023-2027 General pool, question G2C02
What symptoms may result from other signals interfering with a PACTOR or VARA transmission?Pool question G2E03. Source: NCVEC 2023-2027 General pool, question G2E03
When selecting a CW transmitting frequency, what minimum separation from other stations should be used to minimize interference to stations on adjacent frequencies?Pool question G2B04. Source: NCVEC 2023-2027 General pool, question G2B04
When selecting an SSB transmitting frequency, what minimum separation should be used to minimize interference to stations on adjacent frequencies?Pool question G2B05. Source: NCVEC 2023-2027 General pool, question G2B05
When sending CW, what does a “C” mean when added to the RST report?Pool question G2C07. Source: NCVEC 2023-2027 General pool, question G2C07
Which mode is most commonly used for SSB voice communications in the VHF and UHF bands?Pool question G2A03. Source: NCVEC 2023-2027 General pool, question G2A03
Which mode is most commonly used for voice communications on frequencies of 14 MHz or higher?Pool question G2A01. Source: NCVEC 2023-2027 General pool, question G2A01
Which mode is most commonly used for voice communications on the 17- and 12-meter bands?Pool question G2A04. Source: NCVEC 2023-2027 General pool, question G2A04
Which mode is most commonly used for voice communications on the 160-, 75-, and 40-meter bands?Pool question G2A02. Source: NCVEC 2023-2027 General pool, question G2A02
Which mode is normally used when sending RTTY signals via AFSK with an SSB transmitter?Pool question G2E01. Source: NCVEC 2023-2027 General pool, question G2E01
Which mode of voice communication is most commonly used on the HF amateur bands?Pool question G2A05. Source: NCVEC 2023-2027 General pool, question G2A05
Which of the following are examples of the NATO Phonetic Alphabet?Pool question G2D07. Source: NCVEC 2023-2027 General pool, question G2D07
Which of the following are objectives of the Volunteer Monitor Program?Pool question G2D02. Source: NCVEC 2023-2027 General pool, question G2D02
Which of the following complies with commonly accepted amateur practice when choosing a frequency on which to initiate a call?Pool question G2B07. Source: NCVEC 2023-2027 General pool, question G2B07
Which of the following describes an azimuthal projection map?Pool question G2D04. Source: NCVEC 2023-2027 General pool, question G2D04
Which of the following describes full break-in CW operation (QSK)?Pool question G2C01. Source: NCVEC 2023-2027 General pool, question G2C01
Which of the following describes Winlink?Pool question G2E12. Source: NCVEC 2023-2027 General pool, question G2E12
Which of the following indicates that you are looking for an HF contact with any station?Pool question G2D05. Source: NCVEC 2023-2027 General pool, question G2D05
Which of the following is a common location for FT8?Pool question G2E15. Source: NCVEC 2023-2027 General pool, question G2E15
Which of the following is a way to establish contact with a digital messaging system gateway station?Pool question G2E10. Source: NCVEC 2023-2027 General pool, question G2E10
Which of the following is an advantage of using single sideband, as compared to other analog voice modes on the HF amateur bands?Pool question G2A06. Source: NCVEC 2023-2027 General pool, question G2A06
Which of the following is good amateur practice for net management?Pool question G2B10. Source: NCVEC 2023-2027 General pool, question G2B10
Which of the following is good practice when choosing a transmitting frequency to answer a station calling CQ using FT8?Pool question G2E04. Source: NCVEC 2023-2027 General pool, question G2E04
Which of the following is required when participating in a contest on HF frequencies?Pool question G2D09. Source: NCVEC 2023-2027 General pool, question G2D09
Which of the following is required when using FT8?Pool question G2E07. Source: NCVEC 2023-2027 General pool, question G2E07
Which of the following is true concerning access to frequencies?Pool question G2B01. Source: NCVEC 2023-2027 General pool, question G2B01; 47 CFR 97.101(b), (c)
Which of the following statements is true of single sideband (SSB)?Pool question G2A07. Source: NCVEC 2023-2027 General pool, question G2A07
Which of the following statements is true of VOX operation versus PTT operation?Pool question G2A10. Source: NCVEC 2023-2027 General pool, question G2A10
Who may be the control operator of an amateur station transmitting in RACES to assist relief operations during a disaster?Pool question G2B09. Source: NCVEC 2023-2027 General pool, question G2B09; 47 CFR 97.407(a)
Why are signal reports typically exchanged at the beginning of an HF contact?Pool question G2D11. Source: NCVEC 2023-2027 General pool, question G2D11
Why do many amateurs keep a station log?Pool question G2D08. Source: NCVEC 2023-2027 General pool, question G2D08
Why do most amateur stations use lower sideband on the 160-, 75-, and 40-meter bands?Pool question G2A09. Source: NCVEC 2023-2027 General pool, question G2A09
G3: Radio Wave Propagation 37
Approximately how long does it take the increased ultraviolet and X-ray radiation from a solar flare to affect radio propagation on Earth?Pool question G3A03. Source: NCVEC 2023-2027 General pool, question G3A03
At what point in the solar cycle does the 20-meter band usually support worldwide propagation during daylight hours?Pool question G3A07. Source: NCVEC 2023-2027 General pool, question G3A07
How can a geomagnetic storm affect HF propagation?Pool question G3A08. Source: NCVEC 2023-2027 General pool, question G3A08
How can high geomagnetic activity benefit radio communications?Pool question G3A09. Source: NCVEC 2023-2027 General pool, question G3A09
How does a higher sunspot number affect HF propagation?Pool question G3A01. Source: NCVEC 2023-2027 General pool, question G3A01
How does the ionosphere affect radio waves with frequencies below the MUF and above the LUF?Pool question G3B05. Source: NCVEC 2023-2027 General pool, question G3B05
How is long distance radio communication usually affected by the charged particles that reach Earth from solar coronal holes?Pool question G3A14. Source: NCVEC 2023-2027 General pool, question G3A14
How long does it take a coronal mass ejection to affect radio propagation on Earth?Pool question G3A11. Source: NCVEC 2023-2027 General pool, question G3A11
What causes HF propagation conditions to vary periodically in a 26- to 28-day cycle?Pool question G3A10. Source: NCVEC 2023-2027 General pool, question G3A10
What does LUF stand for?Pool question G3B07. Source: NCVEC 2023-2027 General pool, question G3B07
What does MUF stand for?Pool question G3B08. Source: NCVEC 2023-2027 General pool, question G3B08
What does the A-index measure?Pool question G3A13. Source: NCVEC 2023-2027 General pool, question G3A13
What does the K-index measure?Pool question G3A12. Source: NCVEC 2023-2027 General pool, question G3A12
What does the term “critical angle” mean, as applied to radio wave propagation?Pool question G3C04. Source: NCVEC 2023-2027 General pool, question G3C04
What effect does a sudden ionospheric disturbance have on the daytime ionospheric propagation?Pool question G3A02. Source: NCVEC 2023-2027 General pool, question G3A02
What factors affect the MUF?Pool question G3B02. Source: NCVEC 2023-2027 General pool, question G3B02
What happens to HF propagation when the LUF exceeds the MUF?Pool question G3B11. Source: NCVEC 2023-2027 General pool, question G3B11
What is a characteristic of HF scatter?Pool question G3C06. Source: NCVEC 2023-2027 General pool, question G3C06
What is a characteristic of skywave signals arriving at your location by both short-path and long-path propagation?Pool question G3B01. Source: NCVEC 2023-2027 General pool, question G3B01
What is a geomagnetic storm?Pool question G3A06. Source: NCVEC 2023-2027 General pool, question G3A06
What is meant by the term “critical frequency” at a given incidence angle?Pool question G3C02. Source: NCVEC 2023-2027 General pool, question G3C02
What is near vertical incidence skywave (NVIS) propagation?Pool question G3C10. Source: NCVEC 2023-2027 General pool, question G3C10
What is the approximate maximum distance along the Earth’s surface normally covered in one hop using the E region?Pool question G3B10. Source: NCVEC 2023-2027 General pool, question G3B10
What is the approximate maximum distance along the Earth’s surface normally covered in one hop using the F2 region?Pool question G3B09. Source: NCVEC 2023-2027 General pool, question G3B09
What is the solar flux index?Pool question G3A05. Source: NCVEC 2023-2027 General pool, question G3A05
What makes HF scatter signals often sound distorted?Pool question G3C07. Source: NCVEC 2023-2027 General pool, question G3C07
What type of propagation allows signals to be heard in the transmitting station’s skip zone?Pool question G3C09. Source: NCVEC 2023-2027 General pool, question G3C09
What usually happens to radio waves with frequencies below the LUF?Pool question G3B06. Source: NCVEC 2023-2027 General pool, question G3B06
Which frequency will have the least attenuation for long-distance skip propagation?Pool question G3B03. Source: NCVEC 2023-2027 General pool, question G3B03
Which ionospheric region is closest to the surface of Earth?Pool question G3C01. Source: NCVEC 2023-2027 General pool, question G3C01
Which ionospheric region is the most absorbent of signals below 10 MHz during daylight hours?Pool question G3C11. Source: NCVEC 2023-2027 General pool, question G3C11
Which of the following are the least reliable bands for long-distance communications during periods of low solar activity?Pool question G3A04. Source: NCVEC 2023-2027 General pool, question G3A04
Which of the following is a way to determine current propagation on a desired band from your station?Pool question G3B04. Source: NCVEC 2023-2027 General pool, question G3B04
Which of the following is typical of the lower HF frequencies during the summer?Pool question G3B12. Source: NCVEC 2023-2027 General pool, question G3B12
Why are HF scatter signals in the skip zone usually weak?Pool question G3C08. Source: NCVEC 2023-2027 General pool, question G3C08
Why is long-distance communication on the 40-, 60-, 80-, and 160-meter bands more difficult during the day?Pool question G3C05. Source: NCVEC 2023-2027 General pool, question G3C05
Why is skip propagation via the F2 region longer than that via the other ionospheric regions?Pool question G3C03. Source: NCVEC 2023-2027 General pool, question G3C03
G4: Amateur Radio Practices 60
How can the effects of ground loops be minimized?Pool question G4C09. Source: NCVEC 2023-2027 General pool, question G4C09
How close to the lower edge of a band’s phone segment should your displayed carrier frequency be when using 3 kHz wide LSB?Pool question G4D10. Source: NCVEC 2023-2027 General pool, question G4D10
How close to the upper edge of a band’s phone segment should your displayed carrier frequency be when using 3 kHz wide USB?Pool question G4D11. Source: NCVEC 2023-2027 General pool, question G4D11
How does a noise blanker work?Pool question G4A03. Source: NCVEC 2023-2027 General pool, question G4A03
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?Pool question G4D05. Source: NCVEC 2023-2027 General pool, question G4D05
How does a speech processor affect a single sideband phone signal?Pool question G4D02. Source: NCVEC 2023-2027 General pool, question G4D02
How much change in signal strength is typically represented by one S unit?Pool question G4D06. Source: NCVEC 2023-2027 General pool, question G4D06
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?Pool question G4D07. Source: NCVEC 2023-2027 General pool, question G4D07
In what configuration are the individual cells in a solar panel connected together?Pool question G4E08. Source: NCVEC 2023-2027 General pool, question G4E08
What could be a symptom caused by a ground loop in your station’s audio connections?Pool question G4C10. Source: NCVEC 2023-2027 General pool, question G4C10
What does an S meter measure?Pool question G4D04. Source: NCVEC 2023-2027 General pool, question G4D04
What effect can strong signals from nearby transmitters have on an antenna analyzer?Pool question G4B12. Source: NCVEC 2023-2027 General pool, question G4B12
What frequency range is occupied by a 3 kHz LSB signal when the displayed carrier frequency is set to 7.178 MHz?Pool question G4D08. Source: NCVEC 2023-2027 General pool, question G4D08
What frequency range is occupied by a 3 kHz USB signal with the displayed carrier frequency set to 14.347 MHz?Pool question G4D09. Source: NCVEC 2023-2027 General pool, question G4D09
What happens as a receiver’s noise reduction control level is increased?Pool question G4A07. Source: NCVEC 2023-2027 General pool, question G4A07
What is a possible cause of high voltages that produce RF burns?Pool question G4C05. Source: NCVEC 2023-2027 General pool, question G4C05
What is a possible effect of a resonant ground connection?Pool question G4C06. Source: NCVEC 2023-2027 General pool, question G4C06
What is an advantage of a digital multimeter as compared to an analog multimeter?Pool question G4B06. Source: NCVEC 2023-2027 General pool, question G4B06
What is one disadvantage of using a shortened mobile antenna as opposed to a full-size antenna?Pool question G4E06. Source: NCVEC 2023-2027 General pool, question G4E06
What is the approximate open-circuit voltage from a fully illuminated silicon photovoltaic cell?Pool question G4E09. Source: NCVEC 2023-2027 General pool, question G4E09
What is the benefit of using the opposite or “reverse” sideband when receiving CW?Pool question G4A02. Source: NCVEC 2023-2027 General pool, question G4A02
What is the correct adjustment for the LOAD or COUPLING control of a vacuum tube RF power amplifier?Pool question G4A08. Source: NCVEC 2023-2027 General pool, question G4A08
What is the effect of an incorrectly adjusted speech processor?Pool question G4D03. Source: NCVEC 2023-2027 General pool, question G4D03
What is the effect on plate current of the correct setting of a vacuum-tube RF power amplifier’s TUNE control?Pool question G4A04. Source: NCVEC 2023-2027 General pool, question G4A04
What is the function of an electronic keyer?Pool question G4A10. Source: NCVEC 2023-2027 General pool, question G4A10
What is the purpose of a capacitance hat on a mobile antenna?Pool question G4E01. Source: NCVEC 2023-2027 General pool, question G4E01
What is the purpose of a corona ball on an HF mobile antenna?Pool question G4E02. Source: NCVEC 2023-2027 General pool, question G4E02
What is the purpose of a speech processor in a transceiver?Pool question G4D01. Source: NCVEC 2023-2027 General pool, question G4D01
What is the purpose of an antenna tuner?Pool question G4A06. Source: NCVEC 2023-2027 General pool, question G4A06
What is the purpose of delaying RF output after activating a transmitter’s keying line to an external amplifier?Pool question G4A09. Source: NCVEC 2023-2027 General pool, question G4A09
What is the purpose of the notch filter found on many HF transceivers?Pool question G4A01. Source: NCVEC 2023-2027 General pool, question G4A01
What is the purpose of using a receive attenuator?Pool question G4A13. Source: NCVEC 2023-2027 General pool, question G4A13
What item of test equipment contains horizontal and vertical channel amplifiers?Pool question G4B01. Source: NCVEC 2023-2027 General pool, question G4B01
What precaution should be taken when connecting a solar panel to a lithium iron phosphate battery?Pool question G4E11. Source: NCVEC 2023-2027 General pool, question G4E11
What signal source is connected to the vertical input of an oscilloscope when checking the RF envelope pattern of a transmitted signal?Pool question G4B04. Source: NCVEC 2023-2027 General pool, question G4B04
What signals are used to conduct a two-tone test?Pool question G4B07. Source: NCVEC 2023-2027 General pool, question G4B07
What sound is heard from an audio device experiencing RF interference from a CW transmitter?Pool question G4C04. Source: NCVEC 2023-2027 General pool, question G4C04
What sound is heard from an audio device experiencing RF interference from a single sideband phone transmitter?Pool question G4C03. Source: NCVEC 2023-2027 General pool, question G4C03
What technique helps to minimize RF “hot spots” in an amateur station?Pool question G4C11. Source: NCVEC 2023-2027 General pool, question G4C11
What transmitter performance parameter does a two-tone test analyze?Pool question G4B08. Source: NCVEC 2023-2027 General pool, question G4B08
When is an analog multimeter preferred to a digital multimeter?Pool question G4B09. Source: NCVEC 2023-2027 General pool, question G4B09
Which of the following can be determined with a directional wattmeter?Pool question G4B10. Source: NCVEC 2023-2027 General pool, question G4B10
Which of the following can be measured with an antenna analyzer?Pool question G4B13. Source: NCVEC 2023-2027 General pool, question G4B13
Which of the following could be a cause of interference covering a wide range of frequencies?Pool question G4C02. Source: NCVEC 2023-2027 General pool, question G4C02
Which of the following direct, fused power connections would be the best for a 100-watt HF mobile installation?Pool question G4E03. Source: NCVEC 2023-2027 General pool, question G4E03
Which of the following is a common use of the dual-VFO feature on a transceiver?Pool question G4A12. Source: NCVEC 2023-2027 General pool, question G4A12
Which of the following is an advantage of an oscilloscope versus a digital voltmeter?Pool question G4B02. Source: NCVEC 2023-2027 General pool, question G4B02
Which of the following is the best instrument to use for checking the keying waveform of a CW transmitter?Pool question G4B03. Source: NCVEC 2023-2027 General pool, question G4B03
Which of the following may cause receive interference to an HF transceiver installed in a vehicle?Pool question G4E07. Source: NCVEC 2023-2027 General pool, question G4E07
Which of the following might be useful in reducing RF interference to audio frequency circuits?Pool question G4C01. Source: NCVEC 2023-2027 General pool, question G4C01
Which of the following most limits an HF mobile installation?Pool question G4E05. Source: NCVEC 2023-2027 General pool, question G4E05
Which of the following must be connected to an antenna analyzer when it is being used for SWR measurements?Pool question G4B11. Source: NCVEC 2023-2027 General pool, question G4B11
Which of the following would reduce RF interference caused by common-mode current on an audio cable?Pool question G4C08. Source: NCVEC 2023-2027 General pool, question G4C08
Why do voltmeters have high input impedance?Pool question G4B05. Source: NCVEC 2023-2027 General pool, question G4B05
Why is automatic level control (ALC) used with an RF power amplifier?Pool question G4A05. Source: NCVEC 2023-2027 General pool, question G4A05
Why must all metal enclosures of station equipment be grounded?Pool question G4C12. Source: NCVEC 2023-2027 General pool, question G4C12
Why should a series diode be connected between a solar panel and a storage battery that is being charged by the panel?Pool question G4E10. Source: NCVEC 2023-2027 General pool, question G4E10
Why should DC power for a 100-watt HF transceiver not be supplied by a vehicle’s auxiliary power socket?Pool question G4E04. Source: NCVEC 2023-2027 General pool, question G4E04
Why should soldered joints not be used in lightning protection ground connections?Pool question G4C07. Source: NCVEC 2023-2027 General pool, question G4C07
Why should the ALC system be inactive when transmitting AFSK data signals?Pool question G4A11. Source: NCVEC 2023-2027 General pool, question G4A11
G5: Electrical Principles 40
How does a capacitor react to AC?Pool question G5A06. Source: NCVEC 2023-2027 General pool, question G5A06
How does an inductor react to AC?Pool question G5A05. Source: NCVEC 2023-2027 General pool, question G5A05
How does the total current relate to the individual currents in a circuit of parallel resistors?Pool question G5B02. Source: NCVEC 2023-2027 General pool, question G5B02
How many watts are consumed when a current of 7.0 milliamperes flows through a 1,250-ohm resistance?Pool question G5B05. Source: NCVEC 2023-2027 General pool, question G5B05
How many watts of electrical power are consumed by a 12 VDC light bulb that draws 0.2 amperes?Pool question G5B04. Source: NCVEC 2023-2027 General pool, question G5B04
How many watts of electrical power are consumed if 400 VDC is supplied to an 800-ohm load?Pool question G5B03. Source: NCVEC 2023-2027 General pool, question G5B03
What causes a voltage to appear across the secondary winding of a transformer when an AC voltage source is connected across its primary winding?Pool question G5C01. Source: NCVEC 2023-2027 General pool, question G5C01
What dB change represents a factor of two increase or decrease in power?Pool question G5B01. Source: NCVEC 2023-2027 General pool, question G5B01
What happens when inductive and capacitive reactance are equal in a series LC circuit?Pool question G5A01. Source: NCVEC 2023-2027 General pool, question G5A01
What is impedance?Pool question G5A08. Source: NCVEC 2023-2027 General pool, question G5A08
What is reactance?Pool question G5A02. Source: NCVEC 2023-2027 General pool, question G5A02
What is the approximate total resistance of a 100- and a 200-ohm resistor in parallel?Pool question G5C04. Source: NCVEC 2023-2027 General pool, question G5C04
What is the capacitance of a 20-microfarad capacitor connected in series with a 50-microfarad capacitor?Pool question G5C12. Source: NCVEC 2023-2027 General pool, question G5C12
What is the capacitance of three 100-microfarad capacitors connected in series?Pool question G5C09. Source: NCVEC 2023-2027 General pool, question G5C09
What is the equivalent capacitance of two 5.0-nanofarad capacitors and one 750-picofarad capacitor connected in parallel?Pool question G5C08. Source: NCVEC 2023-2027 General pool, question G5C08
What is the inductance of a circuit with a 20-millihenry inductor connected in series with a 50-millihenry inductor?Pool question G5C11. Source: NCVEC 2023-2027 General pool, question G5C11
What is the inductance of three 10-millihenry inductors connected in parallel?Pool question G5C10. Source: NCVEC 2023-2027 General pool, question G5C10
What is the output PEP of 500 volts peak-to-peak across a 50-ohm load?Pool question G5B14. Source: NCVEC 2023-2027 General pool, question G5B14
What is the output PEP of an unmodulated carrier if the average power is 1060 watts?Pool question G5B13. Source: NCVEC 2023-2027 General pool, question G5B13
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?Pool question G5C02. Source: NCVEC 2023-2027 General pool, question G5C02
What is the peak-to-peak voltage of a sine wave with an RMS voltage of 120 volts?Pool question G5B08. Source: NCVEC 2023-2027 General pool, question G5B08
What is the PEP produced by 200 volts peak-to-peak across a 50-ohm dummy load?Pool question G5B06. Source: NCVEC 2023-2027 General pool, question G5B06
What is the ratio of PEP to average power for an unmodulated carrier?Pool question G5B11. Source: NCVEC 2023-2027 General pool, question G5B11
What is the RMS voltage across a 50-ohm dummy load dissipating 1200 watts?Pool question G5B12. Source: NCVEC 2023-2027 General pool, question G5B12
What is the RMS voltage of a sine wave with a value of 17 volts peak?Pool question G5B09. Source: NCVEC 2023-2027 General pool, question G5B09
What is the term for the inverse of impedance?Pool question G5A07. Source: NCVEC 2023-2027 General pool, question G5A07
What is the total resistance of a 10-, a 20-, and a 50-ohm resistor connected in parallel?Pool question G5C03. Source: NCVEC 2023-2027 General pool, question G5C03
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?Pool question G5C06. Source: NCVEC 2023-2027 General pool, question G5C06
What letter is used to represent reactance?Pool question G5A11. Source: NCVEC 2023-2027 General pool, question G5A11
What occurs in an LC circuit at resonance?Pool question G5A12. Source: NCVEC 2023-2027 General pool, question G5A12
What percentage of power loss is equivalent to a loss of 1 dB?Pool question G5B10. Source: NCVEC 2023-2027 General pool, question G5B10
What transformer turns ratio matches an antenna’s 600-ohm feed point impedance to a 50-ohm coaxial cable?Pool question G5C07. Source: NCVEC 2023-2027 General pool, question G5C07
What unit is used to measure reactance?Pool question G5A09. Source: NCVEC 2023-2027 General pool, question G5A09
What value of an AC signal produces the same power dissipation in a resistor as a DC voltage of the same value?Pool question G5B07. Source: NCVEC 2023-2027 General pool, question G5B07
Which of the following components should be added to a capacitor to increase the capacitance?Pool question G5C13. Source: NCVEC 2023-2027 General pool, question G5C13
Which of the following components should be added to an inductor to increase the inductance?Pool question G5C14. Source: NCVEC 2023-2027 General pool, question G5C14
Which of the following devices can be used for impedance matching at radio frequencies?Pool question G5A10. Source: NCVEC 2023-2027 General pool, question G5A10
Which of the following is opposition to the flow of alternating current in a capacitor?Pool question G5A04. Source: NCVEC 2023-2027 General pool, question G5A04
Which of the following is opposition to the flow of alternating current in an inductor?Pool question G5A03. Source: NCVEC 2023-2027 General pool, question G5A03
Why is the primary winding wire of a voltage step-up transformer usually a larger size than that of the secondary winding?Pool question G5C05. Source: NCVEC 2023-2027 General pool, question G5C05
G6: Circuit Components 23
How does a ferrite bead or core reduce common-mode RF current on the shield of a coaxial cable?Pool question G6B10. Source: NCVEC 2023-2027 General pool, question G6B10
How is an LED biased when emitting light?Pool question G6B08. Source: NCVEC 2023-2027 General pool, question G6B08
What are the operating points for a bipolar transistor used as a switch?Pool question G6A07. Source: NCVEC 2023-2027 General pool, question G6A07
What determines the performance of a ferrite core at different frequencies?Pool question G6B01. Source: NCVEC 2023-2027 General pool, question G6B01
What happens when an inductor is operated above its self-resonant frequency?Pool question G6A11. Source: NCVEC 2023-2027 General pool, question G6A11
What is a typical upper frequency limit for low SWR operation of 50-ohm BNC connectors?Pool question G6B04. Source: NCVEC 2023-2027 General pool, question G6B04
What is an advantage of batteries with low internal resistance?Pool question G6A02. Source: NCVEC 2023-2027 General pool, question G6A02
What is an advantage of using a ferrite core toroidal inductor?Pool question G6B05. Source: NCVEC 2023-2027 General pool, question G6B05
What is an SMA connector?Pool question G6B11. Source: NCVEC 2023-2027 General pool, question G6B11
What is meant by the term MMIC?Pool question G6B02. Source: NCVEC 2023-2027 General pool, question G6B02
What is the approximate forward threshold voltage of a germanium diode?Pool question G6A03. Source: NCVEC 2023-2027 General pool, question G6A03
What is the approximate forward threshold voltage of a silicon junction diode?Pool question G6A05. Source: NCVEC 2023-2027 General pool, question G6A05
What is the minimum allowable discharge voltage for maximum life of a standard 12-volt lead-acid battery?Pool question G6A01. Source: NCVEC 2023-2027 General pool, question G6A01
What is the primary purpose of a screen grid in a vacuum tube?Pool question G6A12. Source: NCVEC 2023-2027 General pool, question G6A12
What kind of device is an integrated circuit operational amplifier?Pool question G6B06. Source: NCVEC 2023-2027 General pool, question G6B06
Which element of a vacuum tube regulates the flow of electrons between cathode and plate?Pool question G6A10. Source: NCVEC 2023-2027 General pool, question G6A10
Which of the following describes a type N connector?Pool question G6B07. Source: NCVEC 2023-2027 General pool, question G6B07
Which of the following describes MOSFET construction?Pool question G6A09. Source: NCVEC 2023-2027 General pool, question G6A09
Which of the following is an advantage of CMOS integrated circuits compared to TTL integrated circuits?Pool question G6B03. Source: NCVEC 2023-2027 General pool, question G6B03
Which of the following is characteristic of an electrolytic capacitor?Pool question G6A04. Source: NCVEC 2023-2027 General pool, question G6A04
Which of the following is characteristic of low voltage ceramic capacitors?Pool question G6A08. Source: NCVEC 2023-2027 General pool, question G6A08
Which of these connector types is commonly used for low frequency or dc signal connections to a transceiver?Pool question G6B12. Source: NCVEC 2023-2027 General pool, question G6B12
Why should wire-wound resistors not be used in RF circuits?Pool question G6A06. Source: NCVEC 2023-2027 General pool, question G6A06
G7: Practical Circuits 38
The bandwidth of a band-pass filter is measured between what two frequencies?Pool question G7C14. Source: NCVEC 2023-2027 General pool, question G7C14
For which of the following modes is a Class C power stage appropriate for amplifying a modulated signal?Pool question G7B11. Source: NCVEC 2023-2027 General pool, question G7B11
How is a product detector used?Pool question G7C04. Source: NCVEC 2023-2027 General pool, question G7C04
How is the efficiency of an RF power amplifier determined?Pool question G7B08. Source: NCVEC 2023-2027 General pool, question G7B08
How many states does a 3-bit binary counter have?Pool question G7B05. Source: NCVEC 2023-2027 General pool, question G7B05
In a Class A amplifier, what percentage of the time does the amplifying device conduct?Pool question G7B04. Source: NCVEC 2023-2027 General pool, question G7B04
What circuit is used to select one of the sidebands from a balanced modulator?Pool question G7C01. Source: NCVEC 2023-2027 General pool, question G7C01
What determines the frequency of an LC oscillator?Pool question G7B09. Source: NCVEC 2023-2027 General pool, question G7B09
What is a shift register?Pool question G7B06. Source: NCVEC 2023-2027 General pool, question G7B06
What is an advantage of using I-Q modulation with software-defined radios (SDRs)?Pool question G7C10. Source: NCVEC 2023-2027 General pool, question G7C10
What is characteristic of a half-wave rectifier in a power supply?Pool question G7A04. Source: NCVEC 2023-2027 General pool, question G7A04
What is one reason to use an impedance matching transformer at a transmitter output?Pool question G7C03. Source: NCVEC 2023-2027 General pool, question G7C03
What is the frequency above which a low-pass filter’s output power is less than half the input power?Pool question G7C12. Source: NCVEC 2023-2027 General pool, question G7C12
What is the function of a power supply bleeder resistor?Pool question G7A01. Source: NCVEC 2023-2027 General pool, question G7A01
What is the output waveform of an unfiltered full-wave rectifier connected to a resistive load?Pool question G7A07. Source: NCVEC 2023-2027 General pool, question G7A07
What is the phase difference between the I and Q RF signals that software-defined radio (SDR) equipment uses for modulation and demodulation?Pool question G7C09. Source: NCVEC 2023-2027 General pool, question G7C09
What is the purpose of neutralizing an amplifier?Pool question G7B01. Source: NCVEC 2023-2027 General pool, question G7B01
What output is produced by a balanced modulator?Pool question G7C02. Source: NCVEC 2023-2027 General pool, question G7C02
What portion of the AC cycle is converted to DC by a full-wave rectifier?Pool question G7A06. Source: NCVEC 2023-2027 General pool, question G7A06
What portion of the AC cycle is converted to DC by a half-wave rectifier?Pool question G7A05. Source: NCVEC 2023-2027 General pool, question G7A05
What term specifies a filter’s attenuation inside its passband?Pool question G7C07. Source: NCVEC 2023-2027 General pool, question G7C07
What term specifies a filter’s maximum ability to reject signals outside its passband?Pool question G7C13. Source: NCVEC 2023-2027 General pool, question G7C13
Which of the following are basic components of a sine wave oscillator?Pool question G7B07. Source: NCVEC 2023-2027 General pool, question G7B07
Which of the following components are used in a power supply filter network?Pool question G7A02. Source: NCVEC 2023-2027 General pool, question G7A02
Which of the following describes a linear amplifier?Pool question G7B10. Source: NCVEC 2023-2027 General pool, question G7B10
Which of the following describes the function of a two-input AND gate?Pool question G7B03. Source: NCVEC 2023-2027 General pool, question G7B03
Which of the following is an advantage of a digital signal processing (DSP) filter compared to an analog filter?Pool question G7C06. Source: NCVEC 2023-2027 General pool, question G7C06
Which of the following is characteristic of a direct digital synthesizer (DDS)?Pool question G7C05. Source: NCVEC 2023-2027 General pool, question G7C05
Which of the following is characteristic of a switchmode power supply as compared to a linear power supply?Pool question G7A08. Source: NCVEC 2023-2027 General pool, question G7A08
Which of these classes of amplifiers has the highest efficiency?Pool question G7B02. Source: NCVEC 2023-2027 General pool, question G7B02
Which of these functions is performed by software in a software-defined radio (SDR)?Pool question G7C11. Source: NCVEC 2023-2027 General pool, question G7C11
Which parameter affects receiver sensitivity?Pool question G7C08. Source: NCVEC 2023-2027 General pool, question G7C08
Which symbol in figure G7-1 represents a field effect transistor? (Picture: Figure G7-1 from the General question pool: a schematic diagram whose components are numbered 1 to 11.)Pool question G7A09. Source: NCVEC 2023-2027 General pool, question G7A09
Which symbol in Figure G7-1 represents a solid core transformer? (Picture: Figure G7-1 from the General question pool: a schematic diagram whose components are numbered 1 to 11.)Pool question G7A12. Source: NCVEC 2023-2027 General pool, question G7A12
Which symbol in Figure G7-1 represents a tapped inductor? (Picture: Figure G7-1 from the General question pool: a schematic diagram whose components are numbered 1 to 11.)Pool question G7A13. Source: NCVEC 2023-2027 General pool, question G7A13
Which symbol in figure G7-1 represents a Zener diode? (Picture: Figure G7-1 from the General question pool: a schematic diagram whose components are numbered 1 to 11.)Pool question G7A10. Source: NCVEC 2023-2027 General pool, question G7A10
Which symbol in figure G7-1 represents an NPN junction transistor? (Picture: Figure G7-1 from the General question pool: a schematic diagram whose components are numbered 1 to 11.)Pool question G7A11. Source: NCVEC 2023-2027 General pool, question G7A11
Which type of rectifier circuit uses two diodes and a center-tapped transformer?Pool question G7A03. Source: NCVEC 2023-2027 General pool, question G7A03
G8: Signals and Emissions 42
How are the two separate frequencies of a Frequency Shift Keyed (FSK) signal identified?Pool question G8C11. Source: NCVEC 2023-2027 General pool, question G8C11
How does forward error correction (FEC) allow the receiver to correct data errors?Pool question G8C10. Source: NCVEC 2023-2027 General pool, question G8C10
How is direct binary FSK modulation generated?Pool question G8A01. Source: NCVEC 2023-2027 General pool, question G8A01
In an ARQ mode, what is meant by a NAK response to a transmitted packet?Pool question G8C05. Source: NCVEC 2023-2027 General pool, question G8C05
What action results from a failure to exchange information due to excessive transmission attempts when using an ARQ mode?Pool question G8C06. Source: NCVEC 2023-2027 General pool, question G8C06
What combination of a mixer’s Local Oscillator (LO) and RF input frequencies is found in the output?Pool question G8B11. Source: NCVEC 2023-2027 General pool, question G8B11
What does an FT8 signal report of +3 mean?Pool question G8C15. Source: NCVEC 2023-2027 General pool, question G8C15
What emission is produced by a reactance modulator connected to a transmitter RF amplifier stage?Pool question G8A04. Source: NCVEC 2023-2027 General pool, question G8A04
What is a link budget?Pool question G8A13. Source: NCVEC 2023-2027 General pool, question G8A13
What is another term for the mixing of two RF signals?Pool question G8B03. Source: NCVEC 2023-2027 General pool, question G8B03
What is indicated on a waterfall display by one or more vertical lines on either side of a data mode or RTTY signal?Pool question G8C13. Source: NCVEC 2023-2027 General pool, question G8C13
What is link margin?Pool question G8A14. Source: NCVEC 2023-2027 General pool, question G8A14
What is meant by the term “flat-topping,” when referring to an amplitude-modulated phone signal?Pool question G8A10. Source: NCVEC 2023-2027 General pool, question G8A10
What is QPSK modulation?Pool question G8A12. Source: NCVEC 2023-2027 General pool, question G8A12
What is the frequency deviation for a 12.21 MHz reactance modulated oscillator in a 5 kHz deviation, 146.52 MHz FM phone transmitter?Pool question G8B07. Source: NCVEC 2023-2027 General pool, question G8B07
What is the modulation envelope of an AM signal?Pool question G8A11. Source: NCVEC 2023-2027 General pool, question G8A11
What is the name of the process that changes the instantaneous frequency of an RF wave to convey information?Pool question G8A03. Source: NCVEC 2023-2027 General pool, question G8A03
What is the name of the process that changes the phase angle of an RF signal to convey information?Pool question G8A02. Source: NCVEC 2023-2027 General pool, question G8A02
What is the relationship between transmitted symbol rate and bandwidth?Pool question G8B10. Source: NCVEC 2023-2027 General pool, question G8B10
What is the stage in a VHF FM transmitter that generates a harmonic of a lower frequency signal to reach the desired operating frequency?Pool question G8B04. Source: NCVEC 2023-2027 General pool, question G8B04
What is the term for interference from a signal at twice the IF frequency from the desired signal?Pool question G8B02. Source: NCVEC 2023-2027 General pool, question G8B02
What is the total bandwidth of an FM phone transmission having 5 kHz deviation and 3 kHz modulating frequency?Pool question G8B06. Source: NCVEC 2023-2027 General pool, question G8B06
What part of a packet radio frame contains the routing and handling information?Pool question G8C03. Source: NCVEC 2023-2027 General pool, question G8C03
What process combines two signals in a non-linear circuit to produce unwanted spurious outputs?Pool question G8B12. Source: NCVEC 2023-2027 General pool, question G8B12
What type of modulation is used by FT8?Pool question G8A09. Source: NCVEC 2023-2027 General pool, question G8A09
What type of modulation varies the instantaneous power level of the RF signal?Pool question G8A05. Source: NCVEC 2023-2027 General pool, question G8A05
Which digital mode is used as a low-power beacon for assessing HF propagation?Pool question G8C02. Source: NCVEC 2023-2027 General pool, question G8C02
Which intermodulation products are closest to the original signal frequencies?Pool question G8B05. Source: NCVEC 2023-2027 General pool, question G8B05
Which is true of mesh network microwave nodes?Pool question G8C09. Source: NCVEC 2023-2027 General pool, question G8C09
Which mixer input is varied or tuned to convert signals of different frequencies to an intermediate frequency (IF)?Pool question G8B01. Source: NCVEC 2023-2027 General pool, question G8B01
Which of the following describes a waterfall display?Pool question G8C14. Source: NCVEC 2023-2027 General pool, question G8C14
Which of the following describes Baudot code?Pool question G8C04. Source: NCVEC 2023-2027 General pool, question G8C04
Which of the following is an effect of overmodulation?Pool question G8A08. Source: NCVEC 2023-2027 General pool, question G8A08
Which of the following is an odd-order intermodulation product of frequencies F1 and F2?Pool question G8B13. Source: NCVEC 2023-2027 General pool, question G8B13
Which of the following is characteristic of QPSK31?Pool question G8A06. Source: NCVEC 2023-2027 General pool, question G8A06
Which of the following narrow-band digital modes can receive signals with very low signal-to-noise ratios?Pool question G8C07. Source: NCVEC 2023-2027 General pool, question G8C07
Which of the following phone emissions uses the narrowest bandwidth?Pool question G8A07. Source: NCVEC 2023-2027 General pool, question G8A07
Which of the following provide digital voice modes?Pool question G8C16. Source: NCVEC 2023-2027 General pool, question G8C16
Which of the following statements is true about PSK31?Pool question G8C08. Source: NCVEC 2023-2027 General pool, question G8C08
Which type of code is used for sending characters in a PSK31 signal?Pool question G8C12. Source: NCVEC 2023-2027 General pool, question G8C12
Why is it good to match receiver bandwidth to the bandwidth of the operating mode?Pool question G8B09. Source: NCVEC 2023-2027 General pool, question G8B09
Why is it important to know the duty cycle of the mode you are using when transmitting?Pool question G8B08. Source: NCVEC 2023-2027 General pool, question G8B08
G9: Antennas and Feed Lines 46
How do the lengths of a three-element Yagi reflector and director compare to that of the driven element?Pool question G9C03. Source: NCVEC 2023-2027 General pool, question G9C03
How does a “screwdriver” mobile antenna adjust its feed point impedance?Pool question G9D08. Source: NCVEC 2023-2027 General pool, question G9D08
How does antenna gain in dBi compare to gain stated in dBd for the same antenna?Pool question G9C04. Source: NCVEC 2023-2027 General pool, question G9C04
How does antenna height affect the azimuthal radiation pattern of a horizontal dipole HF antenna at elevation angles higher than about 45 degrees?Pool question G9B05. Source: NCVEC 2023-2027 General pool, question G9B05
How does the attenuation of coaxial cable change with increasing frequency?Pool question G9A05. Source: NCVEC 2023-2027 General pool, question G9A05
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?Pool question G9B08. Source: NCVEC 2023-2027 General pool, question G9B08
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?Pool question G9B07. Source: NCVEC 2023-2027 General pool, question G9B07
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?Pool question G9A08. Source: NCVEC 2023-2027 General pool, question G9A08
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?Pool question G9C09. Source: NCVEC 2023-2027 General pool, question G9C09
In what units is RF feed line loss usually expressed?Pool question G9A06. Source: NCVEC 2023-2027 General pool, question G9A06
In which direction is the maximum radiation from a VHF/UHF “halo” antenna?Pool question G9D03. Source: NCVEC 2023-2027 General pool, question G9D03
In which direction or directions does an electrically small loop (less than 1/10 wavelength in circumference) have nulls in its radiation pattern?Pool question G9D10. Source: NCVEC 2023-2027 General pool, question G9D10
What causes reflected power at an antenna’s feed point?Pool question G9A04. Source: NCVEC 2023-2027 General pool, question G9A04
What does “front-to-back ratio” mean in reference to a Yagi antenna?Pool question G9C07. Source: NCVEC 2023-2027 General pool, question G9C07
What is a beta or hairpin match?Pool question G9C11. Source: NCVEC 2023-2027 General pool, question G9C11
What is a characteristic of a random-wire HF antenna connected directly to the transmitter?Pool question G9B01. Source: NCVEC 2023-2027 General pool, question G9B01
What is an advantage of vertically stacking horizontally polarized Yagi antennas?Pool question G9D05. Source: NCVEC 2023-2027 General pool, question G9D05
What is meant by the “main lobe” of a directive antenna?Pool question G9C08. Source: NCVEC 2023-2027 General pool, question G9C08
What is the approximate length for a 1/2 wave dipole antenna cut for 3.550 MHz?Pool question G9B11. Source: NCVEC 2023-2027 General pool, question G9B11
What is the approximate length for a 1/2 wave dipole antenna cut for 14.250 MHz?Pool question G9B10. Source: NCVEC 2023-2027 General pool, question G9B10
What is the approximate length for a 1/4 wave monopole antenna cut for 28.5 MHz?Pool question G9B12. Source: NCVEC 2023-2027 General pool, question G9B12
What is the approximate length of the driven element of a Yagi antenna?Pool question G9C02. Source: NCVEC 2023-2027 General pool, question G9C02
What is the common name of a dipole with a single central support?Pool question G9D12. Source: NCVEC 2023-2027 General pool, question G9D12
What is the effect of transmission line loss on SWR measured at the input to the line?Pool question G9A11. Source: NCVEC 2023-2027 General pool, question G9A11
What is the feed point impedance of an end-fed half-wave antenna?Pool question G9D02. Source: NCVEC 2023-2027 General pool, question G9D02
What is the nominal characteristic impedance of “window line” transmission line?Pool question G9A03. Source: NCVEC 2023-2027 General pool, question G9A03
What is the primary effect of increasing boom length and adding directors to a Yagi antenna?Pool question G9C05. Source: NCVEC 2023-2027 General pool, question G9C05
What is the primary function of antenna traps?Pool question G9D04. Source: NCVEC 2023-2027 General pool, question G9D04
What is the primary use of a Beverage antenna?Pool question G9D09. Source: NCVEC 2023-2027 General pool, question G9D09
What is the radiation pattern of a dipole antenna in free space in a plane containing the conductor?Pool question G9B04. Source: NCVEC 2023-2027 General pool, question G9B04
What is the relationship between high standing wave ratio (SWR) and transmission line loss?Pool question G9A02. Source: NCVEC 2023-2027 General pool, question G9A02
What must be done to prevent standing waves on a feed line connected to an antenna?Pool question G9A07. Source: NCVEC 2023-2027 General pool, question G9A07
What standing wave ratio results from connecting a 50-ohm feed line to a 10-ohm resistive load?Pool question G9A10. Source: NCVEC 2023-2027 General pool, question G9A10
What standing wave ratio results from connecting a 50-ohm feed line to a 200-ohm resistive load?Pool question G9A09. Source: NCVEC 2023-2027 General pool, question G9A09
Where should the radial wires of a ground-mounted vertical antenna system be placed?Pool question G9B06. Source: NCVEC 2023-2027 General pool, question G9B06
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?Pool question G9D01. Source: NCVEC 2023-2027 General pool, question G9D01
Which of the following best describes the radiation pattern of a quarter-wave ground-plane vertical antenna?Pool question G9B03. Source: NCVEC 2023-2027 General pool, question G9B03
Which of the following can be adjusted to optimize forward gain, front-to-back ratio, or SWR bandwidth of a Yagi antenna?Pool question G9C10. Source: NCVEC 2023-2027 General pool, question G9C10
Which of the following describes a log-periodic antenna?Pool question G9D07. Source: NCVEC 2023-2027 General pool, question G9D07
Which of the following factors determine the characteristic impedance of a parallel conductor feed line?Pool question G9A01. Source: NCVEC 2023-2027 General pool, question G9A01
Which of the following is a characteristic of using a gamma match with a Yagi antenna?Pool question G9C12. Source: NCVEC 2023-2027 General pool, question G9C12
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?Pool question G9B02. Source: NCVEC 2023-2027 General pool, question G9B02
Which of the following is a disadvantage of multiband antennas?Pool question G9D11. Source: NCVEC 2023-2027 General pool, question G9D11
Which of the following is an advantage of a log-periodic antenna?Pool question G9D06. Source: NCVEC 2023-2027 General pool, question G9D06
Which of the following is an advantage of using a horizontally polarized as compared to a vertically polarized HF antenna?Pool question G9B09. Source: NCVEC 2023-2027 General pool, question G9B09
Which of the following would increase the bandwidth of a Yagi antenna?Pool question G9C01. Source: NCVEC 2023-2027 General pool, question G9C01
G0: Electrical and RF Safety 25
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?Pool question G0B02. Source: NCVEC 2023-2027 General pool, question G0B02
How can you determine that your station complies with FCC RF exposure regulations?Pool question G0A03. Source: NCVEC 2023-2027 General pool, question G0A03; 47 CFR 97.13(c)(1)
What does “time averaging” mean when evaluating RF radiation exposure?Pool question G0A04. Source: NCVEC 2023-2027 General pool, question G0A04
What is one way that RF energy can affect human body tissue?Pool question G0A01. Source: NCVEC 2023-2027 General pool, question G0A01
What is the effect of modulation duty cycle on RF exposure?Pool question G0A07. Source: NCVEC 2023-2027 General pool, question G0A07
What is the purpose of a power supply interlock?Pool question G0B12. Source: NCVEC 2023-2027 General pool, question G0B12
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?Pool question G0A05. Source: NCVEC 2023-2027 General pool, question G0A05; 47 CFR 97.13(c)(2), 1.1307(b)
What must you do if your station fails to meet the FCC RF exposure exemption criteria?Pool question G0A06. Source: NCVEC 2023-2027 General pool, question G0A06; 47 CFR 97.13(c)(2), 1.1307(1)(b)(3)(i)
What precaution should be taken if you install an indoor transmitting antenna?Pool question G0A11. Source: NCVEC 2023-2027 General pool, question G0A11
What should be done before climbing a tower that supports electrically powered devices?Pool question G0B08. Source: NCVEC 2023-2027 General pool, question G0B08
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?Pool question G0A10. Source: NCVEC 2023-2027 General pool, question G0A10
What stations are subject to the FCC rules on RF exposure?Pool question G0A12. Source: NCVEC 2023-2027 General pool, question G0A12; 47 CFR 1.1307(1)(b)(3)(i)(A)
What type of instrument can be used to accurately measure an RF field strength?Pool question G0A09. Source: NCVEC 2023-2027 General pool, question G0A09
Where should lightning arrestors be located?Pool question G0B13. Source: NCVEC 2023-2027 General pool, question G0B13
Where should the station’s lightning protection ground system be located?Pool question G0B04. Source: NCVEC 2023-2027 General pool, question G0B04
Which of the following conditions will cause a ground fault circuit interrupter (GFCI) to disconnect AC power?Pool question G0B05. Source: NCVEC 2023-2027 General pool, question G0B05
Which of the following is a danger from lead-tin solder?Pool question G0B10. Source: NCVEC 2023-2027 General pool, question G0B10
Which of the following is covered by the National Electrical Code?Pool question G0B06. Source: NCVEC 2023-2027 General pool, question G0B06
Which of the following is required for lightning protection ground rods?Pool question G0B11. Source: NCVEC 2023-2027 General pool, question G0B11
Which of the following is true of an emergency generator installation?Pool question G0B09. Source: NCVEC 2023-2027 General pool, question G0B09
Which of the following is used to determine RF exposure from a transmitted signal?Pool question G0A02. Source: NCVEC 2023-2027 General pool, question G0A02
Which of the following steps must an amateur operator take to ensure compliance with RF safety regulations?Pool question G0A08. Source: NCVEC 2023-2027 General pool, question G0A08; 47 CFR 97.13(c)(2)
Which of these choices should be observed when climbing a tower using a safety harness?Pool question G0B07. Source: NCVEC 2023-2027 General pool, question G0B07
Which size of fuse or circuit breaker would be appropriate to use with a circuit that uses AWG number 14 wiring?Pool question G0B03. Source: NCVEC 2023-2027 General pool, question G0B03
Which wire or wires in a four-conductor 240 VAC circuit should be attached to fuses or circuit breakers?Pool question G0B01. Source: NCVEC 2023-2027 General pool, question G0B01
How this list was compiled: Questions, answer choices, keyed answers and the one figure are from the 2023-2027 General Class (Element 3) question pool, which the National Conference of Volunteer Examiner Coordinators (NCVEC) Question Pool Committee released into the public domain (originally released December 1, 2022). The file used is the current release, 'General Class Pool and Syllabus 2023-2027 Public Release with 6th Errata Feb 4 2026', from https://ncvec.org/index.php/2023-2027-general-question-pool-release (read 2026-09-30). The pool is valid for exams from July 1, 2023 to June 30, 2027; the ARRL's question pools page gave the same dates on 2026-09-30. The exam format (35 questions, 26 correct to pass) is 47 CFR 97.503(b), and the elements a General Class license needs are 47 CFR 97.501(b), both read at https://www.law.cornell.edu/cfr/text/47/97.503 and https://www.law.cornell.edu/cfr/text/47/97.501 on 2026-09-30. Licence: public domain (NCVEC release); figure reproduced from the same release
How it works
This unofficial general ham radio practice test holds all 423 questions of the 2023-2027 General Class pool, in use until June 30, 2027. Pick a subelement under Start from, or press Exam mode for 35 questions with 26 to pass.
Read the full guide
What the real exam is
The General exam, Element 3, is 35 multiple-choice questions and you pass with 26 correct. A volunteer examiner team gives it. The real test takes one question from each of the pool's 35 groups; this ham radio general practice test draws 35 at random from the whole pool.
How the pool is laid out
Ten subelements, G1 to G0: rules (5 exam questions), operating procedures (5), propagation (3), amateur radio practices (5), electrical principles (3), circuit components (2), practical circuits (3), signals and emissions (3), antennas and feed lines (4) and safety (2). Rules questions carry the pool's 47 CFR reference.
Nine questions have been withdrawn since 2023, the last two in February 2026. A study guide printed before then may still list them.
Five questions use the pool's one figure, G7-1. Learn its schematic symbols; the exam uses the same drawing.
Questions and answers
How many questions are on the ham radio General test, and how many can you miss?
Thirty-five, and you can miss 9: 26 correct pass (47 CFR 97.503). They come from the public 2023-2027 General Class pool of 423 questions.
Which General question pool is in use now?
The 2023-2027 pool. It took effect on July 1, 2023 and is used until June 30, 2027. The latest errata, issued February 4, 2026, withdrew two questions, G1A04 and G1C09.
Is this ham general practice test made of the real exam questions?
Yes. The pool is public, and the real exam draws its questions, choices and answers from it. This site is not affiliated with the FCC, the NCVEC or any volunteer examiner coordinator.
Do I need the Technician exam as well?
A General Class license needs a pass, or credit, for both Element 2 and Element 3 (47 CFR 97.501). Element 2 is the Technician exam; this page is Element 3.