Ham Radio - General Class - Question Pool
G0A01 -What is one way that RF energy can affect human body tissue? A. It heats body tissue B. It causes radiation poisoning C. It causes the blood count to reach a dangerously low level D. It cools body tissue
(A)
G0A05 -What must you do if an evaluation of your station shows RF energy radiated from your station exceeds permissible limits? A. Take action to prevent human exposure to the excessive RF fields B. File an Environmental Impact Statement (EIS-97) with the FCC C. Secure written permission from your neighbors to operate above the controlled MPE limits D. All of these choices are correct
(A)
G0A07 -What effect does transmitter duty cycle have when evaluating RF exposure? A. A lower transmitter duty cycle permits greater short-term exposure levels B. A higher transmitter duty cycle permits greater short-term exposure levels C. Low duty cycle transmitters are exempt from RF exposure evaluation requirements D. High duty cycle transmitters are exempt from RF exposure requirements
(A)
G0B01 -Which wire or wires in a four-conductor line cord should be attached to fuses or circuit breakers in a device operated from a 240-VAC single-phase source? A. Only the hot wires B. Only the neutral wire C. Only the ground wire D. All wires
(A)
G0B04 -Which of the following is a primary reason for not placing a gasoline-fueled generator inside an occupied area? A. Danger of carbon monoxide poisoning B. Danger of engine over torque C. Lack of oxygen for adequate combustion D. Lack of nitrogen for adequate combustion
(A)
G0B10 -Which of the following is a danger from lead-tin solder? A. Lead can contaminate food if hands are not washed carefully after handling B. High voltages can cause lead-tin solder to disintegrate suddenly C. Tin in the solder can "cold flow" causing shorts in the circuit D. RF energy can convert the lead into a poisonous gas
(A)
G0B13 -What must you do when powering your house from an emergency generator? A. Disconnect the incoming utility power feed B. Insure that the generator is not grounded C. Insure that all lightning grounds are disconnected D. All of these choices are correct
(A)
G0B15 -Which of the following is true of an emergency generator installation? A. The generator should be located in a well ventilated area B. The generator should be insulated from ground C. Fuel should be stored near the generator for rapid refueling in case of an emergency D. All of these choices are correct
(A)
G1A05 -Which of the following frequencies is in the General Class portion of the 40 meter band? A. 7.250 MHz B. 7.500 MHz C. 40.200 MHz D. 40.500 MHz
(A)
G1B03 -Which of the following is a purpose of a beacon station as identified in the FCC Rules? A. Observation of propagation and reception B. Automatic identification of repeaters C. Transmission of bulletins of general interest to Amateur Radio licensees D. Identifying net frequencies
(A)
G1B04 -Which of the following must be true before amateur stations may provide communications to broadcasters for dissemination to the public? A. The communications must directly relate to the immediate safety of human life or protection of property and there must be no other means of communication reasonably available before or at the time of the event B. The communications must be approved by a local emergency preparedness official and conducted on officially designated frequencies C. The FCC must have declared a state of emergency D. All of these choices are correct
(A)
G1B09 -When may an amateur station transmit communications in which the licensee or control operator has a pecuniary (monetary) interest? A. When other amateurs are being notified of the sale of apparatus normally used in an amateur station and such activity is not done on a regular basis B. Only when there is no other means of communications readily available C. When other amateurs are being notified of the sale of any item with a monetary value less than $200 and such activity is not done on a regular basis D. Never
(A)
G1B12 -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? A. The FCC B. The Control Operator C. The IEEE D. The ITU
(A)
G1C01 -What is the maximum transmitting power an amateur station may use on 10.140 MHz? A. 200 watts PEP output B. 1000 watts PEP output C. 1500 watts PEP output D. 2000 watts PEP output
(A)
G1C03 -What is the maximum bandwidth permitted by FCC rules for Amateur Radio stations when transmitting on USB frequencies in the 60 meter band? A. 2.8 kHz B. 5.6 kHz C. 1.8 kHz D. 3 kHz
(A)
G1C04 -Which of the following is a limitation on transmitter power on the 14 MHz band? A. Only the minimum power necessary to carry out the desired communications should be used B. Power must be limited to 200 watts when transmitting between 14.100 MHz and 14.150 MHz C. Power should be limited as necessary to avoid interference to another radio service on the frequency D. Effective radiated power cannot exceed 3000 watts
(A)
G1C09 -What is the maximum symbol rate permitted for RTTY or data emission transmitted on the 1.25 meter and 70 centimeter bands A. 56 kilobaud B. 19.6 kilobaud C. 1200 baud D. 300 baud
(A)
G1D04 -Which of the following is a requirement for administering a Technician Class operator examination? A. At least three VEC accredited General Class or higher VEs must be present B. At least two VEC accredited General Class or higher VEs must be present C. At least two General Class or higher VEs must be present, but only one need be VEC accredited D. At least three VEs of Technician Class or higher must be present
(A)
G1D06 -When must you add the special identifier "AG" after your call sign if you are a Technician Class licensee and have a CSCE for General Class operator privileges, but the FCC has not yet posted your upgrade on its Web site? A. Whenever you operate using General Class frequency privileges B. Whenever you operate on any amateur frequency C. Whenever you operate using Technician frequency privileges D. A special identifier is not required as long as your General Class license application has been filed with the FCC
(A)
G1E01 -Which of the following would disqualify a third party from participating in stating a message over an amateur station? A. The third party's amateur license had ever been revoked B. The third party is not a U.S. citizen C. The third party is a licensed amateur D. The third party is speaking in a language other than English, French, or Spanish
(A)
G1E06 -Which of the following applies in the event of interference between a coordinated repeater and an uncoordinated repeater? A. The licensee of the non-coordinated repeater has primary responsibility to resolve the interference B. The licensee of the coordinated repeater has primary responsibility to resolve the interference C. Both repeater licensees share equal responsibility to resolve the interference D. The frequency coordinator bears primary responsibility to resolve the interference
(A)
G2A01 -Which sideband is most commonly used for voice communications on frequencies of 14 MHz or higher? A. Upper sideband B. Lower sideband C. Vestigial sideband D. Double sideband
(A)
G2A03 -Which of the following is most commonly used for SSB voice communications in the VHF and UHF bands? A. Upper sideband B. Lower sideband C. Vestigial sideband D. Double sideband
(A)
G2A04 -Which mode is most commonly used for voice communications on the 17 and 12 meter bands? A. Upper sideband B. Lower sideband C. Vestigial sideband D. Double sideband
(A)
G0A09 -What type of instrument can be used to accurately measure an RF field? A. A receiver with an S meter B. A calibrated field-strength meter with a calibrated antenna C. A betascope with a dummy antenna calibrated at 50 ohms D. An oscilloscope with a high-stability crystal marker generator
(B)
G0A12 -What precaution should you take whenever you make adjustments or repairs to an antenna? A. Ensure that you and the antenna structure are grounded B. Turn off the transmitter and disconnect the feed line C. Wear a radiation badge D. All of these choices are correct
(B)
G0B05 -Which of the following conditions will cause a Ground Fault Circuit Interrupter (GFCI) to disconnect the 120 or 240 Volt AC line power to a device? A. Current flowing from one or more of the hot wires to the neutral wire B. Current flowing from one or more of the hot wires directly to ground C. Over-voltage on the hot wire D. All of these choices are correct
(B)
G0B07 -Which of the following should be observed for safety when climbing on a tower using a safety belt or harness? A. Never lean back and rely on the belt alone to support your weight B. Always attach the belt safety hook to the belt D-ring with the hook opening away from the tower C. Ensure that all heavy tools are securely fastened to the belt D-ring D. Make sure that your belt is grounded at all times
(B)
G0B08 -What should be done by any person preparing to climb a tower that supports electrically powered devices? A. Notify the electric company that a person will be working on the tower B. Make sure all circuits that supply power to the tower are locked out and tagged C. Unground the base of the tower D. All of these choices are correct
(B)
G1A02 -On which of the following bands is phone operation prohibited? A. 160 meters B. 30 meters C. 17 meters D. 12 meters
(B)
G1A03 -On which of the following bands is image transmission prohibited? A. 160 meters B. 30 meters C. 20 meters D. 12 meters
(B)
G1A12 -When General Class licensees are not permitted to use the entire voice portion of a particular band, which portion of the voice segment is generally available to them? A. The lower frequency end B. The upper frequency end C. The lower frequency end on frequencies below 7.3 MHz and the upper end on frequencies above 14.150 MHz D. The upper frequency end on frequencies below 7.3 MHz and the lower end on frequencies above 14.150 MHz
(B)
G1B06 -When is an amateur station permitted to transmit secret codes? A. During a declared communications emergency B. To control a space station C. Only when the information is of a routine, personal nature D. Only with Special Temporary Authorization from the FCC
(B)
G1B07 -What are the restrictions on the use of abbreviations or procedural signals in the Amateur Service? A. Only "Q" codes are permitted B. They may be used if they do not obscure the meaning of a message C. They are not permitted D. Only "10 codes" are permitted
(B)
G1C11 -What is the maximum symbol rate permitted for RTTY or data emission transmissions on the 2 meter band? A. 56 kilobaud B. 19.6 kilobaud C. 1200 baud D. 300 baud
(B)
G1D08 -Which of the following criteria must be met for a non-U.S. citizen to be an accredited Volunteer Examiner? A. The person must be a resident of the U.S. for a minimum of 5 years B. The person must hold an FCC granted Amateur Radio license of General Class or above C. The person's home citizenship must be in the ITU 2 region D. None of these choices is correct; non-U.S. citizens cannot be volunteer examiners
(B)
G1D10 -What is the minimum age that one must be to qualify as an accredited Volunteer Examiner? A. 12 years B. 18 years C. 21 years D. There is no age limit
(B)
G1E03 -In what ITU region is operation in the 7.175 to 7.300 MHz band permitted for a control operator holding an FCC-issued General Class license? A. Region 1 B. Region 2 C. Region 3 D. All three regions
(B)
G1E08 -Which of the following is a requirement for a non-licensed person to communicate with a foreign Amateur Radio station from a station with an FCC granted license at which a licensed control operator is present? A. Information must be exchanged in English B. The foreign amateur station must be in a country with which the United States has a third party agreement C. The control operator must have at least a General Class license D. All of these choices are correct
(B)
G2A02 -Which of the following modes is most commonly used for voice communications on the 160, 75, and 40 meter bands? A. Upper sideband B. Lower sideband C. Vestigial sideband D. Double sideband
(B)
G2A06 -Which of the following is an advantage when using single sideband as compared to other analog voice modes on the HF amateur bands? A. Very high fidelity voice modulation B. Less bandwidth used and higher power efficiency C. Ease of tuning on receive and immunity to impulse noise D. Less subject to static crashes (atmospherics)
(B)
G2A07 -Which of the following statements is true of the single sideband (SSB) voice mode? A. Only one sideband and the carrier are transmitted; the other sideband is suppressed B. Only one sideband is transmitted; the other sideband and carrier are suppressed C. SSB voice transmissions have higher average power than any other mode D. SSB is the only mode that is authorized on the 160, 75 and 40 meter amateur bands
(B)
G2A08 -Which of the following is a recommended way to break into a conversation when using phone? A. Say "QRZ" several times followed by your call sign B. Say your call sign during a break between transmissions from the other stations C. Say "Break. Break. Break." and wait for a response D. Say "CQ" followed by the call sign of either station
(B)
G2A10 -Which of the following statements is true of SSB VOX operation? A. The received signal is more natural sounding B. VOX allows "hands free" operation C. Frequency spectrum is conserved D. Provides more power output
(B)
G2B02 -What is the first thing you should do if you are communicating with another amateur station and hear a station in distress break in? A. Continue your communication because you were on frequency first B. Acknowledge the station in distress and determine what assistance may be needed C. Change to a different frequency D. Immediately cease all transmissions
(B)
G0A08 -Which of the following steps must an amateur operator take to ensure compliance with RF safety regulations when transmitter power exceeds levels specified in part 97.13? A. Post a copy of FCC Part 97 in the station B. Post a copy of OET Bulletin 65 in the station C. Perform a routine RF exposure evaluation D. All of these choices are correct
(C)
G0A11 -What precaution should you take if you install an indoor transmitting antenna? A. Locate the antenna close to your operating position to minimize feed-line radiation B. Position the antenna along the edge of a wall to reduce parasitic radiation C. Make sure that MPE limits are not exceeded in occupied areas D. No special precautions are necessary if SSB and CW are the only modes used
(C)
G0B02 -What is the minimum wire size that may be safely used for a circuit that draws up to 20 amperes of continuous current? A. AWG number 20 B. AWG number 16 C. AWG number 12 D. AWG number 8
(C)
G0B12 -What is the purpose of a transmitter power supply interlock? A. To prevent unauthorized access to a transmitter B. To guarantee that you cannot accidentally transmit out of band C. To ensure that dangerous voltages are removed if the cabinet is opened D. To shut off the transmitter if too much current is drawn
(C)
G0B14 -Which of the following is covered by the National Electrical Code? A. Acceptable bandwidth limits B. Acceptable modulation limits C. Electrical safety inside the ham shack D. RF exposure limits of the human body
(C)
G0B16 -When might a lead acid storage battery give off explosive hydrogen gas? A. When stored for long periods of time B. When being discharged C. When being charged D. When not placed on a level surface
(C)
G1A01 -On which of the following bands is a General Class license holder granted all amateur frequency privileges? A. 60, 20, 17, and 12 meters B. 160, 80, 40, and 10 meters C. 160, 60, 30, 17, 12, and 10 meters D. 160, 30, 17, 15, 12, and 10 meters
(C)
G1A07 -Which of the following frequencies is within the General Class portion of the 75 meter phone band? A. 1875 kHz B. 3750 kHz C. 3900 kHz D. 4005 kHz
(C)
G1A08 -Which of the following frequencies is within the General Class portion of the 20 meter phone band? A. 14005 kHz B. 14105 kHz C. 14305 kHz D. 14405 kHz
(C)
G1A09 -Which of the following frequencies is within the General Class portion of the 80 meter band? A. 1855 kHz B. 2560 kHz C. 3560 kHz D. 3650 kHz
(C)
G1A10 -Which of the following frequencies is within the General Class portion of the 15 meter band? A. 14250 kHz B. 18155 kHz C. 21300 kHz D. 24900 kHz
(C)
G1A14 -Which of the following applies when the FCC rules designate the Amateur Service as a secondary user on a band? A. Amateur stations must record the call sign of the primary service station before operating on a frequency assigned to that station B. Amateur stations are allowed to use the band only during emergencies C. Amateur stations are allowed to use the band only if they do not cause harmful interference to primary users D. Amateur stations may only operate during specific hours of the day, while primary users are permitted 24 hour use of the band
(C)
G1B01 -What is the maximum height above ground to which an antenna structure may be erected without requiring notification to the FAA and registration with the FCC, provided it is not at or near a public use airport? A. 50 feet B. 100 feet C. 200 feet D. 300 feet
(C)
G1B10 -What is the power limit for beacon stations? A. 10 watts PEP output B. 20 watts PEP output C. 100 watts PEP output D. 200 watts PEP output
(C)
G1B11 -How does the FCC require an amateur station to be operated in all respects not specifically covered by the Part 97 rules? A. In conformance with the rules of the IARU B. In conformance with Amateur Radio custom C. In conformance with good engineering and good amateur practice D. All of these choices are correct
(C)
G1C02 -What is the maximum transmitting power an amateur station may use on the 12 meter band? A. 1500 PEP output, except for 200 watts PEP output in the Novice portion B. 200 watts PEP output C. 1500 watts PEP output D. An effective radiated power equivalent to 50 watts from a half-wave dipole
(C)
G1C05 -Which of the following is a limitation on transmitter power on the 28 MHz band? A. 100 watts PEP output B. 1000 watts PEP output C. 1500 watts PEP output D. 2000 watts PEP output
(C)
G1C10 -What is the maximum symbol rate permitted for RTTY or data emission transmissions on the 10 meter band? A. 56 kilobaud B. 19.6 kilobaud C. 1200 baud D. 300 baud
(C)
G1D01 -Which of the following is a proper way to identify when transmitting using phone on General Class frequencies if you have a CSCE for the required elements but your upgrade from Technician has not appeared in the FCC database? A. Give your call sign followed by the words "General Class" B. No special identification is needed C. Give your call sign followed by "slant AG" D. Give your call sign followed the abbreviation "CSCE"
(C)
G1D02 -What license examinations may you administer when you are an accredited VE holding a General Class operator license? A. General and Technician B. General only C. Technician only D. Extra, General and Technician
(C)
G1D03 -On which of the following band segments may you operate if you are a Technician Class operator and have a CSCE for General Class privileges? A. Only the Technician band segments until your upgrade is posted on the FCC database B. Only on the Technician band segments until your license arrives in the mail C. On any General or Technician Class band segment D. On any General or Technician Class band segment except 30 and 60 meters
(C)
G1D07 -Volunteer Examiners are accredited by what organization? A. The Federal Communications Commission B. The Universal Licensing System C. A Volunteer Examiner Coordinator D. The Wireless Telecommunications Bureau
(C)
G1D09 -How long is a Certificate of Successful Completion of Examination (CSCE) valid for exam element credit? A. 30 days B. 180 days C. 365 days D. For as long as your current license is valid
(C)
G1E05 -What types of messages for a third party in another country may be transmitted by an amateur station? A. Any message, as long as the amateur operator is not paid B. Only messages for other licensed amateurs C. Only messages relating to Amateur Radio or remarks of a personal character, or messages relating to emergencies or disaster relief D. Any messages, as long as the text of the message is recorded in the station log
(C)
G1E07 -With which foreign countries is third party traffic prohibited, except for messages directly involving emergencies or disaster relief communications? A. Countries in ITU Region 2 B. Countries in ITU Region 1 C. Every foreign country, unless there is a third party agreement in effect with that country D. Any country which is not a member of the International Amateur Radio Union (IARU)
(C)
G1E09 -What language must you use when identifying your station if you are using a language other than English in making a contact using phone emission? A. The language being used for the contact B. Any language if the US has a third party agreement with that country C. English D. Any language of a country that is a member of the ITU
(C)
G2A05 -Which mode of voice communication is most commonly used on the high frequency amateur bands? A. Frequency modulation B. Double sideband C. Single sideband D. Phase modulation
(C)
G2A11 -What does the expression "CQ DX" usually indicate? A. A general call for any station B. The caller is listening for a station in Germany C. The caller is looking for any station outside their own country D. A distress call
(C)
G2B01 -Which of the following is true concerning access to frequencies? A. Nets always have priority B. QSO's in process always have priority C. No one has priority access to frequencies, common courtesy should be a guide D. Contest operations must always yield to non-contest use of frequencies
(C)
G2B03 -If propagation changes during your contact and you notice increasing interference from other activity on the same frequency, what should you do? A. Tell the interfering stations to change frequency B. Report the interference to your local Amateur Auxiliary Coordinator C. As a common courtesy, move your contact to another frequency D. Increase power to overcome interference
(C)
G0A02 -Which of the following properties is important in estimating whether an RF signal exceeds the maximum permissible exposure (MPE)? A. Its duty cycle B. Its frequency C. Its power density D. All of these choices are correct
(D)
G0A03 -How can you determine that your station complies with FCC RF exposure regulations? A. By calculation based on FCC OET Bulletin 65 B. By calculation based on computer modeling C. By measurement of field strength using calibrated equipment D. All of these choices are correct
(D)
G0A04 -What does "time averaging" mean in reference to RF radiation exposure? A. The average time of day when the exposure occurs B. The average time it takes RF radiation to have any long-term effect on the body C. The total time of the exposure D. The total RF exposure averaged over a certain time
(D)
G0A10 -What is one thing that can be done if evaluation shows that a neighbor might receive more than the allowable limit of RF exposure from the main lobe of a directional antenna? A. Change from horizontal polarization to vertical polarization B. Change from horizontal polarization to circular polarization C. Use an antenna with a higher front-to-back ratio D. Take precautions to ensure that the antenna cannot be pointed in their direction
(D)
G0A13 -What precaution should be taken when installing a ground-mounted antenna? A. It should not be installed higher than you can reach B. It should not be installed in a wet area C. It should limited to 10 feet in height D. It should be installed so no one can be exposed to RF radiation in excess of maximum permissible limits
(D)
G0B03 -Which size of fuse or circuit breaker would be appropriate to use with a circuit that uses AWG number 14 wiring? A. 100 amperes B. 60 amperes C. 30 amperes D. 15 amperes
(D)
G0B06 -Why must the metal enclosure of every item of station equipment be grounded? A. It prevents blowing of fuses in case of an internal short circuit B. It prevents signal overload C. It ensures that the neutral wire is grounded D. It ensures that hazardous voltages cannot appear on the chassis
(D)
G0B09 -Why should soldered joints not be used with the wires that connect the base of a tower to a system of ground rods? A. The resistance of solder is too high B. Solder flux will prevent a low conductivity connection C. Solder has too high a dielectric constant to provide adequate lightning protection D. A soldered joint will likely be destroyed by the heat of a lightning strike
(D)
G0B11 -Which of the following is good engineering practice for lightning protection grounds? A. They must be bonded to all buried water and gas lines B. Bends in ground wires must be made as close as possible to a right angle C. Lightning grounds must be connected to all ungrounded wiring D. They must be bonded together with all other grounds
(D)
G1A04 -Which of the following amateur bands is restricted to communication on only specific channels, rather than frequency ranges? A. 11 meters B. 12 meters C. 30 meters D. 60 meters
(D)
G1A06 -Which of the following frequencies is in the 12 meter band? A. 3.940 MHz B. 12.940 MHz C. 17.940 MHz D. 24.940 MHz
(D)
G1A11 -Which of the following frequencies is available to a control operator holding a General Class license? A. 28.020 MHz B. 28.350 MHz C. 28.550 MHz D. All of these choices are correct
(D)
G1A13 -Which, if any, amateur band is shared with the Citizens Radio Service? A. 10 meters B. 12 meters C. 15 meters D. None
(D)
G1A15 -What is the appropriate action if, when operating on either the 30 or 60 meter bands, a station in the primary service interferes with your contact? A. Notify the FCC's regional Engineer in Charge of the interference B. Increase your transmitter's power to overcome the interference C. Attempt to contact the station and request that it stop the interference D. Move to a clear frequency
(D)
G1B02 -With which of the following conditions must beacon stations comply? A. A beacon station may not use automatic control B. The frequency must be coordinated with the National Beacon Organization C. The frequency must be posted on the Internet or published in a national periodical D. There must be no more than one beacon signal in the same band from a single location
(D)
G1B05 -When may music be transmitted by an amateur station? A. At any time, as long as it produces no spurious emissions B. When it is unintentionally transmitted from the background at the transmitter C. When it is transmitted on frequencies above 1215 MHz D. When it is an incidental part of a manned space craft retransmission
(D)
G1B08 -When choosing a transmitting frequency, what should you do to comply with good amateur practice? A. Review FCC Part 97 Rules regarding permitted frequencies and emissions? B. Follow generally accepted band plans agreed to by the Amateur Radio community. C. Before transmitting, listen to avoid interfering with ongoing communication D. All of these choices are correct
(D)
G1C06 -Which of the following is a limitation on transmitter power on 1.8 MHz band? A. 200 watts PEP output B. 1000 watts PEP output C. 1200 watts PEP output D. 1500 watts PEP output
(D)
G1C07 -What is the maximum symbol rate permitted for RTTY or data emission transmission on the 20 meter band? A. 56 kilobaud B. 19.6 kilobaud C. 1200 baud D. 300 baud
(D)
G1C08 -What is the maximum symbol rate permitted for RTTY or data emission transmitted at frequencies below 28 MHz? A. 56 kilobaud B. 19.6 kilobaud C. 1200 baud D. 300 baud
(D)
G1D05 -Which of the following is sufficient for you to be an administering VE for a Technician Class operator license examination? A. Notification to the FCC that you want to give an examination B. Receipt of a CSCE for General Class C. Possession of a properly obtained telegraphy license D. An FCC General Class or higher license and VEC accreditation
(D)
G1E02 -When may a 10 meter repeater retransmit the 2 meter signal from a station having a Technician Class control operator? A. Under no circumstances B. Only if the station on 10 meters is operating under a Special Temporary Authorization allowing such retransmission C. Only during an FCC declared general state of communications emergency D. Only if the 10 meter repeater control operator holds at least a General Class license
(D)
G1E04 -Which of the following conditions require an Amateur Radio station licensee to take specific steps to avoid harmful interference to other users or facilities? A. When operating within one mile of an FCC Monitoring Station B. When using a band where the Amateur Service is secondary C. When a station is transmitting spread spectrum emissions D. All of these choices are correct
(D)
G1E10 -What portion of the 10 meter band is available for repeater use? A. The entire band B. The portion between 28.1 MHz and 28.2 MHz C. The portion between 28.3 MHz and 28.5 MHz D. The portion above 29.5 MHz
(D)
G2A09 -Why do most amateur stations use lower sideband on the 160, 75 and 40 meter bands? A. Lower sideband is more efficient than upper sideband at these frequencies B. Lower sideband is the only sideband legal on these frequency bands C. Because it is fully compatible with an AM detector D. Current amateur practice is to use lower sideband on these frequency bands
(D)
