T1A01~What is the control point of an amateur station?~The on/off switch of the transmitter~The input/output port of a packet controller~The variable frequency oscillator of a transmitter~The location at which the control operator function is performed~D~[97.3a12]~2-23
T1A02~What is the term for the location at which the control operator function is performed?~The operating desk~The control point~The station location~The manual control location~B~[97.3a12]~2-23
T1A03~What must you do to renew or change your operator/primary station license?~Properly fill out FCC Form 610 and send it to the FCC in Gettysburg, PA~Properly fill out FCC Form 610 and send it to the nearest FCC field office~Properly fill out FCC Form 610 and send it to the FCC in Washington, DC~An amateur license never needs changing or renewing~A~[97.19a/b]~2-24
T1A04~What is the "grace period" during which the FCC will renew an expired 10-year license?~2 years~5 years~10 years~There is no grace period ~A~[97.19c]~2-24
T1A05~Which of the following frequencies may a Technician operator who has passed a Morse code test use?~7.1 - 7.2 MHz ~14.1 - 14.2 MHz~21.1 - 21.2 MHz~28.1 - 29.2 MHz~C~[97.301/305e]~2-23
T1A06~Which operator licenses authorize privileges on 52.525 MHz?~Extra, Advanced only~Extra, Advanced, General only~Extra, Advanced, General, Technician only~Extra, Advanced, General, Technician, Novice~C~[97.301a]~2-23
T1A07~Which operator licenses authorize privileges on 146.52 MHz?~Extra, Advanced, General, Technician, Novice~Extra, Advanced, General, Technician only~Extra, Advanced, General only~Extra, Advanced only~B~[97.301a]~2-23
T1A08~Which operator licenses authorize privileges on 223.50 MHz?~Extra, Advanced, General, Technician, Novice~Extra, Advanced, General, Technician only~Extra, Advanced, General only~Extra, Advanced only~A~[97.301a]~2-23
T1A09~Which operator licenses authorize privileges on 446.0 MHz?~Extra, Advanced, General, Technician, Novice~Extra, Advanced, General, Technician only~Extra, Advanced, General only~Extra, Advanced only~B~[97.301a]~2-23
T1A10~In addition to passing the Technician written examination (Elements 2 and 3A), what must you do before you are allowed to use amateur frequencies below 30 MHz?~Nothing special is needed; all Technicians may use the HF bands at any time~You must notify the FCC that you intend to operate on the HF bands~You must attend a class to learn about HF communications~You must pass a Morse code test (either Element 1A, 1B or 1C)~D~[97.301e]~2-23
T1A11~If you are a Technician licensee, what must you have to prove that you are authorized to use the Novice amateur frequencies below 30 MHz?~A certificate from the FCC showing that you have notified them that you will be using the HF bands~A certificate from an instructor showing that you have attended a class in HF communications~Written proof of having passed a Morse code test~No special proof is required before using the HF bands~C~[97.301e]~2-29
T1B01~At what point in your station is transceiver power measured?~At the power supply terminals inside the transmitter or amplifier~At the final amplifier input terminals inside the transmitter or amplifier~At the antenna terminals of the transmitter or amplifier~On the antenna itself, after the feed line~C~[97.3b6]~2-24
T1B02~What is the term for the average power supplied to an antenna transmission line during one RF cycle at the crest of the modulation envelope?~Peak transmitter power~Peak output power~Average radio-frequency power~Peak envelope power~D~[97.3b6]~2-24
T1B03~What is the maximum transmitting power permitted an amateur station in beacon operation?~10 watts PEP output~100 watts PEP output~500 watts PEP output~1500 watts PEP output~B~[97.203c]~2-26
T1B04~If the FCC rules say that the amateur service is a secondary user of a frequency band, and another service is a primary user, what does this mean?~Nothing special; all users of a frequency band have equal rights to operate~Amateurs are only allowed to use the frequency band during emergencies~Amateurs are allowed to use the frequency band only if they do not cause harmful interference to primary users~Amateurs must increase transmitter power to overcome any interference caused by primary users ~C~[97.303]~2-24
T1B05~If you are using a frequency within a band assigned to the amateur service on a secondary basis, and a station assigned to the primary service on that band causes interference, what action should you take?~Notify the FCC's regional Engineer in Charge of the interference~Increase your transmitter's power to overcome the interference~Attempt to contact the station and request that it stop the interference~Change frequencies; you may be causing harmful interference to the other station, in violation of FCC rules~D~[97.303]~2-24
T1B06~What rule applies if two amateur stations want to use the same frequency?~The station operator with a lesser class of license must yield the frequency to a higher-class licensee~The station operator with a lower power output must yield the frequency to the station with a higher power output~Both station operators have an equal right to operate on the frequency~Station operators in ITU Regions 1 and 3 must yield the frequency to stations in ITU Region 2~C~[97.303a]~2-24
T1B07~What emission type may always be used for station identification, regardless of the transmitting frequency?~CW~RTTY~MCW~Phone~A~[97.305a]~2-29
T1B08~On what frequencies within the 6-meter band may phone emissions be transmitted?~50.0 - 54.0 MHz only~50.1 - 54.0 MHz only~51.0 - 54.0 MHz only~52.0 - 54.0 MHz only~B~[97.305c]~2-23
T1B09~On what frequencies within the 2-meter band may image emissions be transmitted?~144.1 - 148.0 MHz only~146.0 - 148.0 MHz only~144.0 - 148.0 MHz only~146.0 - 147.0 MHz only~A~[97.305c]~2-23
T1B10~What is the maximum transmitting power permitted an amateur station on 146.52 MHz?~200 watts PEP output~500 watts ERP~1000 watts DC input~1500 watts PEP output~D~[97.313b]~2-24
T1B11~Which band may NOT be used by Earth stations for satellite communications?~6 meters~2 meters~70 centimeters~23 centimeters~A~[97.209b2]~2-25
T1C01~If you are a Novice licensee with a Certificate of Successful Completion of Examination (CSCE) for Technician privileges, how do you identify your station when transmitting on 146.34 MHz?~You must give your call sign, followed by any suitable word that denotes the slant mark and the identifier "KT"~You may not operate on 146.34 until your new license arrives~No special form of identification is needed~You must give your call sign and the location of the VE examination where you obtained the CSCE~A~[97.119e1]~2-29
T1C02~What is the maximum frequency shift permitted for RTTY or data transmissions below 50 MHz?~0.1 kHz~0.5 kHz~1 kHz~5 kHz~C~[97.307f3/4]~2-23
T1C03~What is the maximum frequency shift permitted for RTTY or data transmissions above 50 MHz?~0.1 kHz or the sending speed, in bauds, whichever is greater~0.5 kHz or the sending speed, in bauds, whichever is greater~5 kHz or the sending speed, in bauds, whichever is greater~The FCC rules do not specify a maximum frequency shift above 50 MHz~D~[97.307]~2-23
T1C04~What is the maximum symbol rate permitted for packet transmissions on the 10-meter band?~300 bauds~1200 bauds~19.6 kilobauds~56 kilobauds~B~[97.307f4]~2-23
T1C05~What is the maximum symbol rate permitted for packet transmissions on the 2-meter band?~300 bauds~1200 bauds~19.6 kilobauds~56 kilobauds~C~[97.307f5]~2-23
T1C06~What is the maximum symbol rate permitted for RTTY or data transmissions between 28 and 50 MHz?~56 kilobauds~19.6 kilobauds~1200 bauds~300 bauds~C~[97.307f4]~2-23
T1C07~What is the maximum symbol rate permitted for RTTY or data transmissions between 50 and 222 MHz?~56 kilobauds~19.6 kilobauds~1200 bauds~300 bauds~B~[97.307f5]~2-23
T1C08~What is the maximum authorized bandwidth of RTTY, data or multiplexed emissions using an unspecified digital code within the frequency range of 50 to 222 MHz?~20 kHz~50 kHz~The total bandwidth shall not exceed that of a single-sideband phone emission~The total bandwidth shall not exceed 10 times that of a CW emission~A~[97.307f5]~2-23
T1C09~What is the maximum symbol rate permitted for RTTY or data transmissions above 222 MHz?~300 bauds~1200 bauds~19.6 kilobauds~56 kilobauds~D~[97.307f6]~2-23
T1C10~What is the maximum authorized bandwidth of RTTY, data or multiplexed emissions using an unspecified digital code within the frequency range of 222 to 450 MHz?~50 kHz~100 kHz~150 kHz~200 kHz~B~[97.307f6]~2-23
T1C11~What is the maximum authorized bandwidth of RTTY, data or multiplexed emissions using an unspecified digital code within the 70-cm amateur band?~300 kHz~200 kHz~100 kHz~50 kHz~C~[97.307f6]~2-23
T1D01~What is an amateur station called which transmits communications for the purpose of observation of propagation and reception?~A beacon~A repeater~An auxiliary station~A radio control station~A~[97.3a9]~2-26
T1D02~What is the fastest code speed a repeater may use for automatic identification?~13 words per minute~20 words per minute~25 words per minute~There is no limitation~B~[97.119b1]~2-29
T1D03~If you are using a language besides English to make a contact, what language must you use when identifying your station?~The language being used for the contact~The language being used for the contact, providing the US has a third-party communications agreement with that country~English~Any language of a country which is a member of the International Telecommunication Union~C~[97.119b2]~2-29
T1D04~What do the FCC rules suggest you use as an aid for correct station identification when using phone?~A speech compressor~Q signals~A phonetic alphabet~Unique words of your choice~C~[97.119b2]~2-29
T1D05~What minimum class of amateur license must you hold to operate a beacon station?~Novice~Technician~General~Amateur Extra~B~[97.203a]~2-26
T1D06~If a repeater is causing harmful interference to another repeater and a frequency coordinator has recommended the operation of one station only, who is responsible for resolving the interference?~The licensee of the unrecommended repeater~Both repeater licensees~The licensee of the recommended repeater~The frequency coordinator~A~[97.205c]~2-25
T1D07~If a repeater is causing harmful interference to another amateur repeater and a frequency coordinator has recommended the operation of both stations, who is responsible for resolving the interference?~The licensee of the repeater which has been recommended for the longest period of time~The licensee of the repeater which has been recommended the most recently~The frequency coordinator~Both repeater licensees~D~[97.205c]~2-25
T1D08~If a repeater is causing harmful interference to another repeater and a frequency coordinator has NOT recommended either station, who is primarily responsible for resolving the interference?~Both repeater licensees~The licensee of the repeater which has been in operation for the longest period of time~The licensee of the repeater which has been in operation for the shortest period of time~The frequency coordinator~A~[97.205c]~2-25
T1D09~What minimum information must be on a label affixed to a transmitter used for telecommand (control) of model craft?~Station call sign~Station call sign and the station licensee's name~Station call sign and the station licensee's name and address~Station call sign and the station licensee's class of license~C~[97.215a]~2-26
T1D10~What are the station identification requirements for an amateur transmitter used for telecommand (control) of model craft?~Once every ten minutes~Once every ten minutes, and at the beginning and end of each transmission~At the beginning and end of each transmission~Station identification is not required if the transmitter is labeled with the station licensee's name, address and call sign~D~[97.215a]~2-26
T1D11~What is the maximum transmitter power an amateur station is allowed when used for telecommand (control) of model craft?~One milliwatt~One watt~Two watts~Three watts~B~[97.215c]~2-26
T1E01~What is meant by the term broadcasting?~Transmissions intended for reception by the general public, either direct or relayed~Retransmission by automatic means of programs or signals from non-amateur stations~One-way radio communications, regardless of purpose or content~One-way or two-way radio communications between two or more stations~A~[97.3a10]~2-27
T1E02~Which of the following one-way communications may not be transmitted in the amateur service?~Telecommands to model craft~Broadcasts intended for the general public~Brief transmissions to make adjustments to the station~Morse code practice~B~[97.3a10]~2-27
T1E03~What kind of payment is allowed for third-party messages sent by an amateur station?~Any amount agreed upon in advance~Donation of equipment repairs~Donation of amateur equipment~No payment of any kind is allowed~D~[97.113b]~2-27
T1E04~When may you send obscene words from your amateur station?~Only when they do not cause interference to other communications~Never; obscene words are prohibited in amateur transmissions~Only when they are not retransmitted through a repeater~Any time, but there is an unwritten rule among amateurs that they should not be used on the air~B~[97.113d]~2-28
T1E05~When may you send indecent words from your amateur station?~Only when they do not cause interference to other communications~Only when they are not retransmitted through a repeater~Any time, but there is an unwritten rule among amateurs that they should not be used on the air~Never; indecent words are prohibited in amateur transmissions~D~[97.113d]~2-28
T1E06~When may you send profane words from your amateur station?~Only when they do not cause interference to other communications~Only when they are not retransmitted through a repeater~Never; profane words are prohibited in amateur transmissions~Any time, but there is an unwritten rule among amateurs that they should not be used on the air~C~[97.113d]~2-28
T1E07~If you wanted to use your amateur station to retransmit communications between a space shuttle and its associated Earth stations, what agency must first give its approval?~The FCC in Washington, DC~The office of your local FCC Engineer In Charge (EIC)~The National Aeronautics and Space Administration~The Department of Defense~C~[97.113e]~2-28
T1E08~When are third-party messages allowed to be sent to a foreign country?~When sent by agreement of both control operators~When the third party speaks to a relative~They are not allowed under any circumstances~When the US has a third-party agreement with the foreign country or the third party is qualified to be a control operator~D~[97.115a2]~2-28
T1E09~If you let an unlicensed third party use your amateur station, what must you do at your station's control point?~You must continuously monitor and supervise the third-party's participation~You must monitor and supervise the communication only if contacts are made in countries which have no third-party communications agreement with the US~You must monitor and supervise the communication only if contacts are made on frequencies below 30 MHz~You must key the transmitter and make the station identification~A~[97.115b1]~2-28
T1E10~If a disaster disrupts normal communication systems in an area where the amateur service is regulated by the FCC, what kinds of transmissions may stations make?~Those which are necessary to meet essential communication needs and facilitate relief actions~Those which allow a commercial business to continue to operate in the affected area~Those for which material compensation has been paid to the amateur operator for delivery into the affected area~Those which are to be used for program production or newsgathering for broadcasting purposes~A~[97.401a]~2-25
T1E11~What information is included in an FCC declaration of a temporary state of communication emergency?~A list of organizations authorized to use radio communications in the affected area~A list of amateur frequency bands to be used in the affected area~Any special conditions and special rules to be observed during the emergency~An operating schedule for authorized amateur emergency stations~C~[97.401c]~2-25
T2A01~How do you call another station on a repeater if you know the station's call sign?~Say "break, break 79," then say the station's call sign~Say the station's call sign, then identify your own station~Say "CQ" three times, then say the station's call sign~Wait for the station to call "CQ," then answer it~B~~9-14
T2A02~Why should you pause briefly between transmissions when using a repeater?~To check the SWR of the repeater~To reach for pencil and paper for third-party communications~To listen for anyone wanting to break in~To dial up the repeater's autopatch~C~~9-14
T2A03~Why should you keep transmissions short when using a repeater?~A long transmission may prevent someone with an emergency from using the repeater~To see if the receiving station operator is still awake~To give any listening non-hams a chance to respond~To keep long-distance charges down~A~~9-14
T2A04~What is the proper way to break into a conversation on a repeater?~Wait for the end of a transmission and start calling the desired party~Shout, "break, break!" to show that you're eager to join the conversation~Turn on an amplifier and override whoever is talking~Say your call sign during a break between transmissions~D~~9-13
T2A05~What is the purpose of repeater operation?~To cut your power bill by using someone else's higher power system~To help mobile and low-power stations extend their usable range~To transmit signals for observing propagation and reception~To make calls to stores more than 50 miles away~B~~9-12
T2A06~What causes a repeater to "time out"?~The repeater's battery supply runs out~Someone's transmission goes on longer than the repeater allows~The repeater gets too hot and stops transmitting until its circuitry cools off~Something is wrong with the repeater~B~~9-14
T2A07~During commuting rush hours, which type of repeater operation should be discouraged?~Mobile stations~Low-power stations~Highway traffic information nets~Third-party communications nets~D~~9-14
T2A08~What is a courtesy tone (used in repeater operations)?~A sound used to identify the repeater~A sound used to indicate when a transmission is complete~A sound used to indicate that a message is waiting for someone~A sound used to activate a receiver in case of severe weather~B~~9-14
T2A09~What is the meaning of: "Your signal is full quieting..."?~Your signal is strong enough to overcome all receiver noise~Your signal has no spurious sounds~Your signal is not strong enough to be received~Your signal is being received, but no audio is being heard~A~~9-9
T2A10~How should you give a signal report over a repeater?~Say what your receiver's S-meter reads~Always say: "Your signal report is five five..."~Say the amount of signal quieting into the repeater~Try to imitate the sound quality you are receiving~C~~9-9
T2A11~What is a repeater called which is available for anyone to use?~An open repeater~A closed repeater~An autopatch repeater~A private repeater~A~~9-13
T2A12~What is the usual input/output frequency separation for repeaters in the 2-meter band?~600 kHz~1.0 MHz~1.6 MHz~5.0 MHz~A~~9-12
T2A13~What is the usual input/output frequency separation for repeaters in the 1.25-meter band?~600 kHz~1.0 MHz~1.6 MHz~5.0 MHz~C~ ~9-12
T2A14~What is the usual input/output frequency separation for repeaters in the 70-centimeter band?~600 kHz~1.0 MHz~1.6 MHz~5.0 MHz~D~ ~9-12
T2A15~Why should local amateur communications use VHF and UHF frequencies instead of HF frequencies?~To minimize interference on HF bands capable of long-distance communication~Because greater output power is permitted on VHF and UHF~Because HF transmissions are not propagated locally~Because signals are louder on VHF and UHF frequencies~A~~9-9
T2A16~How might you join a closed repeater system?~Contact the control operator and ask to join~Use the repeater until told not to~Use simplex on the repeater input until told not to~Write the FCC and report the closed condition~A~~9-13
T2A17~How can on-the-air interference be minimized during a lengthy transmitter testing or loading-up procedure?~Choose an unoccupied frequency~Use a dummy load~Use a non-resonant antenna~Use a resonant antenna that requires no loading-up procedure~B~ ~9-6
T2A18~What is the proper way to ask someone their location when using a repeater?~What is your QTH~What is your 20~Where are you~Locations are not normally told by radio~C~ ~9-14
T2B01~Why should simplex be used where possible, instead of using a repeater?~Signal range will be increased~Long distance toll charges will be avoided~The repeater will not be tied up unnecessarily~Your antenna's effectiveness will be better tested~C~~9-14
T2B02~If you are talking to a station using a repeater, how would you find out if you could communicate using simplex instead?~See if you can clearly receive the station on the repeater's input frequency~See if you can clearly receive the station on a lower frequency band~See if you can clearly receive a more distant repeater~See if a third station can clearly receive both of you~A~~9-14
T2B03~If you are operating simplex on a repeater frequency, why would it be good amateur practice to change to another frequency?~The repeater's output power may ruin your station's receiver~There are more repeater operators than simplex operators~Changing the repeater's frequency is not practical~Changing the repeater's frequency requires the authorization of the FCC~C~~9-14
T2B04~What is a repeater frequency coordinator?~Someone who organizes the assembly of a repeater station~Someone who provides advice on what kind of repeater to buy~The person whose call sign is used for a repeater's identification~A person or group that recommends frequencies for repeater usage~D~~9-13
T2B05~What is the proper Q signal to use to see if a frequency is in use before transmitting on CW?~QRV?~QRU?~QRL?~QRZ?~C~~9-3
T2B06~What is one meaning of the Q signal "QSY"?~Change frequency~Send more slowly~Send faster~Use more power~A~~9-3
T2B07~What is one meaning of the Q signal "QSO"?~A contact is confirmed~A conversation is in progress~A contact is ending~A conversation is desired~B~~9-2
T2B08~What is the proper Q signal to use to ask if someone is calling you on CW?~QSL?~QRZ?~QRL?~QRT?~B~~9-4
T2B09~What is the meaning of: "Your signal report is five seven..."?~Your signal is perfectly readable and moderately strong~Your signal is perfectly readable, but weak~Your signal is readable with considerable difficulty~Your signal is perfectly readable with near pure tone~A~~9-5
T2B10~What is the meaning of: "Your signal report is three three..."?~The contact is serial number thirty-three~The station is located at latitude 33 degrees~Your signal is readable with considerable difficulty and weak in strength~Your signal is unreadable, very weak in strength~C~ ~9-5
T2B11~What is the meaning of: "Your signal report is five nine plus 20 dB..."?~Your signal strength has increased by a factor of 100~Repeat your transmission on a frequency 20 kHz higher~The bandwidth of your signal is 20 decibels above linearity~A relative signal-strength meter reading is 20 decibels greater than strength 9~D~ ~9-9
T2C01~What is the proper distress call to use when operating phone?~Say "MAYDAY" several times~Say "HELP" several times~Say "EMERGENCY" several times~Say "SOS" several times~A~~2-19
T2C02~What is the proper distress call to use when operating CW?~MAYDAY~QRRR~QRZ~SOS~D~~2-19
T2C03~What is the proper way to interrupt a repeater conversation to signal a distress call?~Say "BREAK" twice, then your call sign~Say "HELP" as many times as it takes to get someone to answer~Say "SOS," then your call sign~Say "EMERGENCY" three times~A~~9-14
T2C04~With what organization must you register before you can participate in RACES drills?~A local Amateur Radio club~A local racing organization~The responsible civil defense organization~The Federal Communications Commission~C~~2-25
T2C05~What is the maximum number of hours allowed per week for RACES drills?~One~Six, but not more than one hour per day~Eight~As many hours as you want~A~~2-25
T2C06~How must you identify messages sent during a RACES drill?~As emergency messages~As amateur traffic~As official government messages~As drill or test messages~D~~2-25
T2C07~What is one reason for using tactical call signs such as "command post" or "weather center" during an emergency?~They keep the general public informed about what is going on~They are more efficient and help coordinate public-service communications~They are required by the FCC~They increase goodwill between amateurs~B~~2-26
T2C08~What type of messages concerning a person's well-being are sent into or out of a disaster area?~Routine traffic~Tactical traffic~Formal message traffic~Health and Welfare traffic~D~~2-26
T2C09~What are messages called which are sent into or out of a disaster area concerning the immediate safety of human life?~Tactical traffic~Emergency traffic~Formal message traffic~Health and Welfare traffic~B~~2-26
T2C10~Why is it a good idea to have a way to operate your amateur station without using commercial AC power lines?~So you may use your station while mobile~So you may provide communications in an emergency~So you may operate in contests where AC power is not allowed~So you will comply with the FCC rules~B~~2-26
T2C11~What is the most important accessory to have for a hand-held radio in an emergency?~An extra antenna~A portable amplifier~Several sets of charged batteries~A microphone headset for hands-free operation~C~~2-26
T2C12~Which type of antenna would be a good choice as part of a portable HF amateur station that could be set up in case of an emergency?~A three-element quad~A three-element Yagi~A dipole~A parabolic dish~C~~2-26
T3A01~What is the ionosphere?~An area of the outer atmosphere where enough ions and free electrons exist to propagate radio waves~An area between two air masses of different temperature and humidity, along which radio waves can travel~An ionized path in the atmosphere where lightning has struck~An area of the atmosphere where weather takes place~A~~9-29
T3A02~What is the name of the area that makes long-distance radio communications possible by bending radio waves?~Troposphere~Stratosphere~Magnetosphere~Ionosphere~D~~9-29
T3A03~What causes the ionosphere to form?~Solar radiation ionizing the outer atmosphere~Temperature changes ionizing the outer atmosphere~Lightning ionizing the outer atmosphere~Release of fluorocarbons into the atmosphere~A~~9-29
T3A04~What type of solar radiation is most responsible for ionization in the outer atmosphere?~Thermal~Ionized particle~Ultraviolet~Microwave~C~~9-44
T3A05~Which ionospheric region limits daytime radio communications on the 80-meter band to short distances?~D region~E region~F1 region~F2 region~A~~9-45
T3A06~Which ionospheric region is closest to the earth?~The A region~The D region~The E region~The F region~B~~9-44
T3A07~Which ionospheric region most affects sky-wave propagation on the 6-meter band?~The D region~The E region~The F1 region~The F2 region~B~~9-45
T3A08~Which region of the ionosphere is the least useful for long-distance radio wave propagation?~The D region~The E region~The F1 region~The F2 region~A~~9-44
T3A09~Which region of the ionosphere is mainly responsible for long-distance sky-wave radio communications?~D region~E region~F1 region~F2 region~D~~9-45
T3A10~What two sub-regions of ionosphere exist only in the daytime?~Troposphere and stratosphere~F1 and F2~Electrostatic and electromagnetic~D and E~B~~9-45
T3A11~Which two daytime ionospheric regions combine into one region at night?~E and F1~D and E~F1 and F2~E1 and E2~C~~9-45
T3B01~Which region of the ionosphere is mainly responsible for absorbing radio signals during the daytime?~The F2 region~The F1 region~The E region~The D region~D~~9-44
T3B02~When does ionospheric absorption of radio signals occur?~When tropospheric ducting occurs~When long-wavelength signals enter the D region~When signals travel to the F region~When a temperature inversion occurs~B~~9-44
T3B03~What effect does the D region of the ionosphere have on lower-frequency HF signals in the daytime?~It absorbs the signals~It bends the radio waves out into space~It refracts the radio waves back to earth~It has little or no effect on 80-meter radio waves~A~~9-44
T3B04~What causes the ionosphere to absorb radio waves?~The weather below the ionosphere~The ionization of the D region~The presence of ionized clouds in the E region~The splitting of the F region~B~~9-44
T3B05~What is the condition of the ionosphere just before local sunrise?~Atmospheric attenuation is at a maximum~The D region is above the E region~The E region is above the F region~Ionization is at a minimum~D~~9-45
T3B06~When is the ionosphere most ionized?~Dusk~Midnight~Midday~Dawn~C~~9-45
T3B07~When is the ionosphere least ionized?~Shortly before dawn~Just after noon~Just after dusk~Shortly before midnight~A~~9-45
T3B08~When is the E region most ionized?~Dawn~Midday~Dusk~Midnight~B~~9-45
T3B09~What happens to signals higher in frequency than the critical frequency?~They pass through the ionosphere~They are absorbed by the ionosphere~Their frequency is changed by the ionosphere to be below the maximum usable frequency~They are reflected back to their source~A~~9-45
T3B10~What causes the maximum usable frequency to vary?~The temperature of the ionosphere~The speed of the winds in the upper atmosphere~The amount of radiation received from the sun, mainly ultraviolet~The type of weather just below the ionosphere~C~~9-46
T3B11~What does maximum usable frequency mean?~The highest frequency signal that is bent back to the earth~The lowest frequency signal that is bent back to the earth~The highest frequency signal that is most absorbed by the ionosphere~The lowest frequency signal that is most absorbed by the ionosphere~A~~9-46
T3C01~What kind of propagation would best be used by two stations within each other's skip zone on a certain frequency?~Ground-wave~Sky-wave~Scatter-mode~Ducting~C~~9-47
T3C02~If you are receiving a weak and distorted signal from a distant station on a frequency close to the maximum usable frequency, what type of propagation is probably occurring?~Ducting~Line-of-sight~Scatter~Ground-wave~C~~9-47
T3C03~How are VHF signals propagated within the range of the visible horizon?~By sky wave~By direct wave~By plane wave~By geometric wave~B~~9-48
T3C04~Ducting occurs in which region of the atmosphere?~F2~Ectosphere~Troposphere~Stratosphere~C~~9-49
T3C05~What effect does tropospheric bending have on 2-meter radio waves?~It lets you contact stations farther away~It causes them to travel shorter distances~It garbles the signal~It reverses the sideband of the signal~A~~9-49
T3C06~What causes tropospheric ducting of radio waves?~A very low pressure area~An aurora to the north~Lightning between the transmitting and receiving stations~A temperature inversion~D~~9-49
T3C07~What causes VHF radio waves to be propagated several hundred miles over oceans?~A polar air mass~A widespread temperature inversion~An overcast of cirriform clouds~A high-pressure zone~B~~9-49
T3C08~In what frequency range does tropospheric ducting most often occur?~SW~MF~HF~VHF~D~~9-49
T3C09~In what frequency range does sky-wave propagation least often occur?~LF~MF~HF~VHF~D~~9-47
T3C10~What weather condition may cause tropospheric ducting?~A stable high-pressure system~An unstable low-pressure system~A series of low-pressure waves~Periods of heavy rainfall~A~~9-49
T3C11~What band conditions might indicate long-range skip on the 6-meter and 2-meter bands?~Noise on the 80-meter band~The absence of signals on the 10-meter band~Very long-range skip on the 10-meter band~Strong signals on the 10-meter band from stations about 500-600 miles away~D~~9-47
T4A01~Where should the green wire in a three-wire AC line cord be connected in a power supply?~To the fuse~To the "hot" side of the power switch~To the chassis~To the white wire~C~~8-11
T4A02~Where should the black (or red) wire in a three-wire AC line cord be connected in a power supply?~To the white wire~To the green wire~To the chassis~To the fuse~D~~8-10
T4A03~Where should the white wire in a three-wire AC line cord be connected in a power supply?~To the side of the power transformer's primary winding that has a fuse~To the side of the power transformer's primary winding that does not have a fuse~To the chassis~To the black wire~B~~8-10
T4A04~What document is used by almost every US city as the basis for electrical safety requirements for power wiring and antennas?~The Code of Federal Regulations~The Proceedings of the IEEE~The ITU Radio Regulations~The National Electrical Code~D~~8-11
T4A05~What document would you use to see if you comply with standard electrical safety rules when building an amateur antenna?~The Code of Federal Regulations~The Proceedings of the IEEE~The National Electrical Code~The ITU Radio Regulations~C~~8-11
T4A06~Where should fuses be connected on a mobile transceiver's DC power cable?~Between the red and black wires~In series with just the black wire~In series with just the red wire~In series with both the red and black wires~D~~8-5
T4A07~Why is the retaining screw in one terminal of a wall outlet made of brass while the other one is silver colored?~To prevent corrosion~To indicate correct wiring polarity~To better conduct current~To reduce skin effect~B~~8-11
T4A08~How much electrical current flowing through the human body is usually fatal?~As little as 1/10 of an ampere~Approximately 10 amperes~More than 20 amperes~Current flow through the human body is never fatal~A~~8-12
T4A09~Which body organ can be fatally affected by a very small amount of electrical current?~The heart~The brain~The liver~The lungs~A~~8-12
T4A10~How much electrical current flowing through the human body is usually painful?~As little as 1/500 of an ampere~Approximately 10 amperes~More than 20 amperes~Current flow through the human body is never painful~A~~8-12
T4A11~What is the minimum voltage which is usually dangerous to humans?~30 volts~100 volts~1000 volts~2000 volts~A~~8-12
T4A12~Where should the main power switch for a high-voltage power supply be located?~Inside the cabinet, to kill the power if the cabinet is opened~On the back side of the cabinet, out of sight~Anywhere that can be seen and reached easily~A high-voltage power supply should not be switch-operated~C~~8-12
T4A13~What precaution should you take when leaning over a power amplifier?~Take your shoes off~Watch out for loose jewelry contacting high voltage~Shield your face from the heat produced by the power supply~Watch out for sharp edges which may snag your clothing~B~~8-12
T4A14~What is an important safety rule concerning the main electrical box in your home?~Make sure the door cannot be opened easily~Make sure something is placed in front of the door so no one will be able to get to it easily~Make sure others in your home know where it is and how to shut off the electricity~Warn others in your home never to touch the switches, even in an emergency~C~~8-13
T4A15~What should you do if you discover someone who is being burned by high voltage?~Run from the area so you won't be burned too~Turn off the power, call for emergency help and give CPR if needed~Immediately drag the person away from the high voltage~Wait for a few minutes to see if the person can get away from the high voltage on their own, then try to help~B~~8-13
T4B01~How is a voltmeter usually connected to a circuit under test?~In series with the circuit~In parallel with the circuit~In quadrature with the circuit~In phase with the circuit~B~~8-13
T4B02~How can the range of a voltmeter be increased?~By adding resistance in series with the circuit under test~By adding resistance in parallel with the circuit under test~By adding resistance in series with the meter, between the meter and the circuit under test~By adding resistance in parallel with the meter, between the meter and the circuit under test~C~~8-13
T4B03~What happens inside a voltmeter when you switch it from a lower to a higher voltage range?~Resistance is added in series with the meter~Resistance is added in parallel with the meter~Resistance is reduced in series with the meter~Resistance is reduced in parallel with the meter~A~~8-13
T4B04~How is an ammeter usually connected to a circuit under test?~In series with the circuit~In parallel with the circuit~In quadrature with the circuit~In phase with the circuit~A~~8-13
T4B05~How can the range of an ammeter be increased?~By adding resistance in series with the circuit under test~By adding resistance in parallel with the circuit under test~By adding resistance in series with the meter~By adding resistance in parallel with the meter~D~~8-13
T4B06~What does a multimeter measure?~SWR and power~Resistance, capacitance and inductance~Resistance and reactance~Voltage, current and resistance~D~~8-14
T4B07~Where should an RF wattmeter be connected for the most accurate readings of transmitter output power?~At the transmitter output connector~At the antenna feed point~One-half wavelength from the transmitter output~One-half wavelength from the antenna feed point~A~~8-14
T4B08~At what line impedance do most RF wattmeters usually operate?~25 ohms~50 ohms~100 ohms~300 ohms~B~~8-14
T4B09~What does a directional wattmeter measure?~Forward and reflected power~The directional pattern of an antenna~The energy used by a transmitter~Thermal heating in a load resistor~A~~8-14
T4B10~If a directional RF wattmeter reads 90 watts forward power and 10 watts reflected power, what is the actual transmitter output power?~10 watts~80 watts~90 watts~100 watts~B~~8-14
T4B11~If a directional RF wattmeter reads 96 watts forward power and 4 watts reflected power, what is the actual transmitter output power?~80 watts~88 watts~92 watts~100 watts~C~~8-14
T4C01~What is a marker generator?~A high-stability oscillator that generates reference signals at exact frequency intervals~A low-stability oscillator that "sweeps" through a range of frequencies~A low-stability oscillator used to inject a signal into a circuit under test~A high-stability oscillator which can produce a wide range of frequencies and amplitudes~A~~8-15
T4C02~How is a marker generator used?~To calibrate the tuning dial on a receiver~To calibrate the volume control on a receiver~To test the amplitude linearity of a transmitter~To test the frequency deviation of a transmitter~A~~8-15
T4C03~What device is used to inject a frequency calibration signal into a receiver?~A calibrated voltmeter~A calibrated oscilloscope~A calibrated wavemeter~A crystal calibrator~D~~8-15
T4C04~What frequency standard may be used to calibrate the tuning dial of a receiver?~A calibrated voltmeter~Signals from WWV and WWVH~A deviation meter~A sweep generator~B~~8-15
T4C05~How might you check the accuracy of your receiver's tuning dial?~Tune to the frequency of a shortwave broadcasting station~Tune to a popular amateur net frequency~Tune to one of the frequencies of station WWV or WWVH~Tune to another amateur station and ask what frequency the operator is using~C~~8-15
T4C06~What device produces a stable, low-level signal that can be set to a desired frequency?~A wavemeter~A reflectometer~A signal generator~An oscilloscope~C~~8-15
T4C07~What is an RF signal generator used for?~Measuring RF signal amplitudes~Aligning tuned circuits~Adjusting transmitter impedance-matching networks~Measuring transmission-line impedances~B~~8-15
T4C08~What device can measure an impedance mismatch in your antenna system?~A field-strength meter~An ammeter~A wavemeter~A reflectometer~D~~8-16
T4C09~Where should a reflectometer be connected for best accuracy when reading the impedance match between an antenna and its feed line?~At the antenna feed point~At the transmitter output connector~At the midpoint of the feed line~Anywhere along the feed line~A~~8-16
T4C10~If you use a 3-30 MHz RF power meter for VHF, how accurate will its readings be?~They will not be accurate~They will be accurate enough to get by~If it properly calibrates to full scale in the set position, they may be accurate~They will be accurate providing the readings are multiplied by 4.5~A~~8-14
T4C11~If you use a 3-30 MHz SWR meter for VHF, how accurate will its readings be?~They will not be accurate~They will be accurate enough to get by~If it properly calibrates to full scale in the set position, they may be accurate~They will be accurate providing the readings are multiplied by 4.5~C~~8-16
T4D01~What device should be connected to a transmitter's output when you are making transmitter adjustments?~A multimeter~A reflectometer~A receiver~A dummy antenna ~D~~8-16
T4D02~What is a dummy antenna?~An nondirectional transmitting antenna~A nonradiating load for a transmitter~An antenna used as a reference for gain measurements~A flexible antenna usually used on hand-held transceivers~B~~8-16
T4D03~What is the main component of a dummy antenna?~A wire-wound resistor~An iron-core coil~A noninductive resistor~An air-core coil~C~~8-17
T4D04~What device is used in place of an antenna during transmitter tests so that no signal is radiated?~An antenna matcher~A dummy antenna~A low-pass filter~A decoupling resistor~B~~8-16
T4D05~Why would you use a dummy antenna?~For off-the-air transmitter testing~To reduce output power~To give comparative signal reports~To allow antenna tuning without causing interference~A~~8-17
T4D06~What minimum rating should a dummy antenna have for use with a 100-watt single-sideband phone transmitter?~100 watts continuous~141 watts continuous~175 watts continuous~200 watts continuous~A~~8-17
T4D07~Why might a dummy antenna get warm when in use?~Because it stores electric current~Because it stores radio waves~Because it absorbs static electricity~Because it changes RF energy into heat~D~~8-17
T4D08~What is used to measure relative signal strength in a receiver?~An S meter~An RST meter~A signal deviation meter~An SSB meter~A~~8-18
T4D09~How can exposure to a large amount of RF energy affect body tissue?~It causes radiation poisoning~It heats the tissue~It paralyzes the tissue~It produces genetic changes in the tissue~B~~8-19
T4D10~Which body organ is the most likely to be damaged from the heating effects of RF radiation?~Eyes~Hands~Heart~Liver~A~~8-20
T4D11~What organization has published safety guidelines for the maximum limits of RF energy near the human body?~The Institute of Electrical and Electronics Engineers (IEEE)~The Federal Communications Commission (FCC)~The Environmental Protection Agency (EPA)~The American National Standards Institute (ANSI)~D~~8-20
T4D12~What is the purpose of the ANSI RF protection guide?~It lists all RF frequency allocations for interference protection~It gives RF exposure limits for the human body~It sets transmitter power limits for interference protection~It sets antenna height limits for aircraft protection~B~~8-20
T4D13~According to the ANSI RF protection guide, what frequencies cause us the greatest risk from RF energy?~3 to 30 MHz~300 to 3000 MHz~Above 1500 MHz~30 to 300 MHz~D~~8-20
T4D14~Why is the limit of exposure to RF the lowest in the frequency range of 30 MHz to 300 MHz, according to the ANSI RF protection guide?~There are more transmitters operating in this range~There are fewer transmitters operating in this range~Most transmissions in this range are for a longer time~The human body absorbs RF energy the most in this range~D~~8-20
T4D15~According to the ANSI RF protection guide, what is the maximum safe power output to the antenna of a hand-held VHF or UHF radio?~125 milliwatts~7 watts~10 watts~25 watts~B~~8-20
T4D16~After you have opened a VHF power amplifier to make internal tuning adjustments, what should you do before you turn the amplifier on?~Remove all amplifier shielding to ensure maximum cooling~Make sure that the power interlock switch is bypassed so you can test the amplifier~Be certain all amplifier shielding is fastened in place~Be certain no antenna is attached so that you will not cause any interference~C~~8-20
T5A01~What does resistance do in an electric circuit?~It stores energy in a magnetic field~It stores energy in an electric field~It provides electrons by a chemical reaction~It opposes the flow of electrons~D~~3-9
T5A02~What is the ability to store energy in a magnetic field called?~Admittance~Capacitance~Resistance~Inductance~D~~3-19
T5A03~What is the basic unit of inductance?~The coulomb~The farad~The henry~The ohm~C~~3-20
T5A04~What is a henry?~The basic unit of admittance~The basic unit of capacitance~The basic unit of inductance~The basic unit of resistance~C~~3-20
T5A05~What is the ability to store energy in an electric field called?~Inductance~Resistance~Tolerance~Capacitance~D~~3-20
T5A06~What is the basic unit of capacitance?~The farad~The ohm~The volt~The henry~A~~3-20
T5A07~What is a farad?~The basic unit of resistance~The basic unit of capacitance~The basic unit of inductance~The basic unit of admittance~B~~3-20
T5A08~If two equal-value inductors are connected in series, what is their total inductance?~Half the value of one inductor~Twice the value of one inductor~The same as the value of either inductor~The value of one inductor times the value of the other~B~~3-20
T5A09~If two equal-value inductors are connected in parallel, what is their total inductance?~Half the value of one inductor~Twice the value of one inductor~The same as the value of either inductor~The value of one inductor times the value of the other~A~~3-20
T5A10~If two equal-value capacitors are connected in series, what is their total capacitance?~Twice the value of one capacitor~The same as the value of either capacitor~Half the value of either capacitor~The value of one capacitor times the value of the other~C~~3-22
T5A11~If two equal-value capacitors are connected in parallel, what is their total capacitance?~Twice the value of one capacitor~Half the value of one capacitor~The same as the value of either capacitor~The value of one capacitor times the value of the other~A~~3-21
T5B01~Ohm's Law describes the mathematical relationship between what three electrical quantities?~Resistance, voltage and power~Current, resistance and power~Current, voltage and power~Resistance, current and voltage~D~~3-9
T5B02~How is the current in a DC circuit calculated when the voltage and resistance are known?~I = R x E [current equals resistance multiplied by voltage]~I = R / E [current equals resistance divided by voltage]~I = E / R [current equals voltage divided by resistance]~I = P / E [current equals power divided by voltage]~C~~3-10
T5B03~How is the resistance in a DC circuit calculated when the voltage and current are known?~R = I / E [resistance equals current divided by voltage]~R = E / I [resistance equals voltage divided by current]~R = I x E [resistance equals current multiplied by voltage]~R = P / E [resistance equals power divided by voltage]~B~~3-10
T5B04~How is the voltage in a DC circuit calculated when the current and resistance are known?~E = I / R [voltage equals current divided by resistance]~E = R / I [voltage equals resistance divided by current]~E = I x R [voltage equals current multiplied by resistance]~E = P / I [voltage equals power divided by current]~C~~3-10
T5B05~If a 12-volt battery supplies 0.25 ampere to a circuit, what is the circuit's resistance?~0.25 ohm~3 ohm~12 ohms~48 ohms~D~~3-10
T5B06~If a 12-volt battery supplies 0.15 ampere to a circuit, what is the circuit's resistance?~0.15 ohm~1.8 ohm~12 ohms~80 ohms~D~~3-10
T5B07~If a 4800-ohm resistor is connected to 120 volts, approximately how much current will flow through it?~4 A~25 mA~25 A~40 MA~B~~3-10
T5B08~If a 48000-ohm resistor is connected to 120 volts, approximately how much current will flow through it?~400 A~40 A~25 mA~2.5 mA~D~~3-10
T5B09~If a 4800-ohm resistor is connected to 12 volts, approximately how much current will flow through it?~2.5 mA~25 mA~40 A~400 A~A~~3-10
T5B10~If a 48000-ohm resistor is connected to 12 volts, approximately how much current will flow through it?~250 uA~250 mA~4000 mA~4000 A~A~~3-10
T5B11~If you know the voltage and current supplied to a circuit, what formula would you use to calculate the circuit's resistance?~Ohm's Law~Tesla's Law~Ampere's Law~Kirchhoff's Law~A~~3-10
T6A01~What are the most common resistor types?~Plastic and porcelain~Film and wire-wound~Electrolytic and metal-film~Iron core and brass core~B~~4-10
T6A02~What does a variable resistor or potentiometer do?~Its resistance changes when AC is applied to it~It transforms a variable voltage into a constant voltage~Its resistance changes when its slide or contact is moved~Its resistance changes when it is heated~C~~4-12
T6A03~How do you find a resistor's tolerance rating?~By using a voltmeter~By reading the resistor's color code~By using Thevenin's theorem for resistors~By reading its Baudot code~B~~4-12
T6A04~What do the first three color bands on a resistor indicate?~The value of the resistor in ohms~The resistance tolerance in percent~The power rating in watts~The resistance material~A~~4-12
T6A05~What does the fourth color band on a resistor indicate?~The value of the resistor in ohms~The resistance tolerance in percent~The power rating in watts~The resistance material~B~~4-12
T6A06~Why do resistors sometimes get hot when in use?~Some electrical energy passing through them is lost as heat~Their reactance makes them heat up~Hotter circuit components nearby heat them up~They absorb magnetic energy which makes them hot~A~~4-10
T6A07~Why would a large size resistor be used instead of a smaller one of the same resistance?~For better response time~For a higher current gain~For greater power dissipation~For less impedance in the circuit~C~~4-13
T6A08~What are the possible values of a 100-ohm resistor with a 10% tolerance?~90 to 100 ohms~10 to 100 ohms~90 to 110 ohms~80 to 120 ohms~C~~4-12
T6A09~How do you find a resistor's value?~By using a voltmeter~By using the resistor's color code~By using Thevenin's theorem for resistors~By using the Baudot code~B~~4-12
T6A10~Which tolerance rating would a high-quality resistor have?~0.1%~5%~10%~20%~A~~4-13
T6A11~Which tolerance rating would a low-quality resistor have?~0.1%~5%~10%~20%~D~~4-13
T6B01~What is an inductor core?~The place where a coil is tapped for resonance~A tight coil of wire used in a transformer~Insulating material placed between the wires of a transformer~The place inside an inductor where its magnetic field is concentrated~D~~4-13
T6B02~What does an inductor do?~It stores a charge electrostatically and opposes a change in voltage~It stores a charge electrochemically and opposes a change in current~It stores a charge electromagnetically and opposes a change in current~It stores a charge electromechanically and opposes a change in voltage~C~~4-13
T6B03~What determines the inductance of a coil?~The core material, the core diameter, the length of the coil and whether the coil is mounted horizontally or vertically~The core diameter, the number of turns of wire used to wind the coil and the type of metal used for the wire~The core material, the number of turns used to wind the core and the frequency of the current through the coil~The core material, the core diameter, the length of the coil and the number of turns of wire used to wind the coil~D~~4-13
T6B04~As an iron core is inserted in a coil, what happens to the coil's inductance?~It increases~It decreases~It stays the same~It disappears~A~~4-13
T6B05~What can happen if you tune a ferrite-core coil with a metal tool?~The metal tool can change the coil's inductance and cause you to tune the coil incorrectly~The metal tool can become magnetized so much that you might not be able to remove it from the coil~The metal tool can pick up enough magnetic energy to become very hot~The metal tool can pick up enough magnetic energy to become a shock hazard~A~~4-14
T6B06~In Figure T6-1 which symbol represents an adjustable inductor?~Symbol 1~Symbol 2~Symbol 3~Symbol 4~B~~4-14
T6B07~In Figure T6-1 which symbol represents an iron-core inductor?~Symbol 1~Symbol 2~Symbol 3~Symbol 4~D~~4-14
T6B08~In Figure T6-1 which symbol represents an inductor wound over a toroidal core?~Symbol 1~Symbol 2~Symbol 3~Symbol 4~D~~4-15
T6B09~In Figure T6-1 which symbol represents an electrolytic capacitor?~Symbol 1~Symbol 2~Symbol 3~Symbol 4~A~~4-16
T6B10~In Figure T6-1 which symbol represents a variable capacitor?~Symbol 1~Symbol 2~Symbol 3~Symbol 4~C~~4-17
T6B11~What describes a capacitor?~Two or more layers of silicon material with an insulating material between them~The wire used in the winding and the core material~Two or more conductive plates with an insulating material between them~Two or more insulating plates with a conductive material between them~C~~4-15
T6B12~What does a capacitor do?~It stores a charge electrochemically and opposes a change in current~It stores a charge electrostatically and opposes a change in voltage~It stores a charge electromagnetically and opposes a change in current~It stores a charge electromechanically and opposes a change in voltage~B~~4-15
T6B13~What determines the capacitance of a capacitor?~The material between the plates, the area of one side of one plate, the number of plates and the spacing between the plates~The material between the plates, the number of plates and the size of the wires connected to the plates~The number of plates, the spacing between the plates and whether the dielectric material is N type or P type~The material between the plates, the area of one plate, the number of plates and the material used for the protective coating~A~~4-16
T6B14~As the plate area of a capacitor is increased, what happens to its capacitance?~It decreases~It increases~It stays the same~It disappears~B~~4-16
T7A01~Why do modern HF transmitters have a built-in low-pass filter in their RF output circuits?~To reduce RF energy below a cutoff point~To reduce low-frequency interference to other amateurs~To reduce harmonic radiation~To reduce fundamental radiation~C~~5-9
T7A02~What circuit blocks RF energy above and below a certain limit?~A band-pass filter~A high-pass filter~An input filter~A low-pass filter~A~~5-10
T7A03~What type of filter is used in the IF section of receivers to block energy outside a certain frequency range?~A band-pass filter~A high-pass filter~An input filter~A low-pass filter~A~~5-10
T7A04~What circuit is found in all types of receivers?~An audio filter~A beat-frequency oscillator~A detector~An RF amplifier~C~~5-13
T7A05~What circuit has a variable-frequency oscillator connected to a driver and a power amplifier?~A packet-radio transmitter~A crystal-controlled transmitter~A single-sideband transmitter~A VFO-controlled transmitter~D~~5-11
T7A06~What circuit combines signals from an IF amplifier stage and a beat-frequency oscillator (BFO), to produce an audio signal?~An AGC circuit~A detector circuit~A power supply circuit~A VFO circuit~B~~5-14
T7A07~What circuit uses a limiter and a frequency discriminator to produce an audio signal?~A double-conversion receiver~A variable-frequency oscillator~A superheterodyne receiver~A FM receiver~D~~5-15
T7A08~What circuit is pictured in Figure T7-1 if block 1 is a variable-frequency oscillator?~A packet-radio transmitter~A crystal-controlled transmitter~A single-sideband transmitter~A VFO-controlled transmitter~D~~5-11
T7A09~What is the unlabeled block in Figure T7-2?~An AGC circuit~A detector~A power supply~A VFO circuit~B~~5-14
T7A10~What circuit is pictured in Figure T7-3?~A double-conversion receiver~A variable-frequency oscillator~A superheterodyne receiver~An FM receiver~D~~5-15
T7A11~What is the unlabeled block in Figure T7-4?~A band-pass filter~A crystal oscillator~A reactance modulator~A rectifier modulator~C~~5-13
T8A01~What is the name for unmodulated carrier wave emissions?~Phone~Test~CW~RTTY~B~~9-3
T8A02~What is the name for Morse code emissions produced by switching a transmitter's output on and off?~Phone~Test~CW~RTTY~C~~9-3
T8A03~What is RTTY?~Amplitude-keyed telegraphy~Frequency-shift-keyed telegraphy~Frequency-modulated telephony~Phase-modulated telephony~B~~9-16
T8A04~What is the name for packet-radio emissions?~CW~Data~Phone~RTTY~B~~9-22
T8A05~How is tone-modulated Morse code produced?~By feeding a microphone's audio signal into an FM transmitter~By feeding an on/off keyed audio tone into a CW transmitter~By on/off keying of a carrier~By feeding an on/off keyed audio tone into a transmitter~D~~9-16
T8A06~What is the name of the voice emission most used on VHF/UHF repeaters?~Single-sideband phone~Pulse-modulated phone~Slow-scan phone~Frequency-modulated phone~D~~9-12
T8A07~What is the name of the voice emission most used on amateur HF bands?~Single-sideband phone~Pulse-modulated phone~Slow-scan phone~Frequency-modulated phone~A~~9-7
T8A08~What is meant by the upper-sideband (USB)?~The part of a single-sideband signal which is above the carrier frequency~The part of a single-sideband signal which is below the carrier frequency~Any frequency above 10 MHz~The carrier frequency of a single-sideband signal~A~~9-11
T8A09~What emissions are produced by a transmitter using a reactance modulator?~CW~Test~Single-sideband, suppressed-carrier phone~Phase-modulated phone~D~~5-13
T8A10~What other emission does phase modulation most resemble?~Amplitude modulation~Pulse modulation~Frequency modulation~Single-sideband modulation~C~~5-13
T8A11~What is the name for emissions produced by an on/off keyed audio tone?~RTTY~MCW~CW~Phone~B~~9-16
T8B01~What is another name for a constant-amplitude radio-frequency signal?~An RF carrier~An AF carrier~A sideband carrier~A subcarrier~A~~5-11
T8B02~What is modulation?~Varying a radio wave in some way to send information~Receiving audio information from a signal~Increasing the power of a transmitter~Suppressing the carrier in a single-sideband transmitter~A~~5-11
T8B03~What kind of emission would your FM transmitter produce if its microphone failed to work?~An unmodulated carrier~A phase-modulated carrier~An amplitude-modulated carrier~A frequency-modulated carrier~A~~5-12
T8B04~How would you modulate a 2-meter FM transceiver to produce packet-radio emissions?~Connect a terminal-node controller to interrupt the transceiver's carrier wave~Connect a terminal-node controller to the transceiver's microphone input~Connect a keyboard to the transceiver's microphone input~Connect a DTMF key pad to the transceiver's microphone input~B~~9-24
T8B05~Why is FM voice best for local VHF/UHF radio communications?~The carrier is not detectable~It is more resistant to distortion caused by reflected signals~It has high-fidelity audio which can be understood even when the signal is somewhat weak~Its RF carrier stays on frequency better than the AM modes~C~~9-50
T8B06~Why do many radio receivers have several IF filters of different bandwidths that can be selected by the operator?~Because some frequency bands are wider than others~Because different bandwidths help increase the receiver sensitivity~Because different bandwidths improve S-meter readings~Because some emission types need a wider bandwidth than others to be received properly~D~~9-50
T8B07~Which list of emission types is in order from the narrowest bandwidth to the widest bandwidth?~RTTY, CW, SSB voice, FM voice~CW, FM voice, RTTY, SSB voice~CW, RTTY, SSB voice, FM voice~CW, SSB voice, RTTY, FM voice~C~~9-50
T8B08~What is the usual bandwidth of a single-sideband amateur signal?~1 kHz~2 kHz~Between 3 and 6 kHz~Between 2 and 3 kHz~D~~9-50
T8B09~What is the usual bandwidth of a frequency-modulated amateur signal?~Less than 5 kHz~Between 5 and 10 kHz~Between 10 and 20 kHz~Greater than 20 kHz~C~~9-50
T8B10~What is the result of overdeviation in an FM transmitter?~Increased transmitter power~Out-of-channel emissions~Increased transmitter range~Poor carrier suppression~B~~9-51
T8B11~What causes splatter interference?~Keying a transmitter too fast~Signals from a transmitter's output circuit are being sent back to its input circuit~Overmodulation of a transmitter~The transmitting antenna is the wrong length~C~~9-51
T9A01~What is a directional antenna?~An antenna which sends and receives radio energy equally well in all directions~An antenna that cannot send and receive radio energy by skywave or skip propagation~An antenna which sends and receives radio energy mainly in one direction~An antenna which sends and receives radio energy equally well in two opposite directions~C~~7-30
T9A02~How is a Yagi antenna constructed?~Two or more straight, parallel elements are fixed in line with each other~Two or more square or circular loops are fixed in line with each other~Two or more square or circular loops are stacked inside each other~A straight element is fixed in the center of three or more elements which angle toward the ground~A~~7-30
T9A03~What type of beam antenna uses two or more straight elements arranged in line with each other?~A delta loop antenna~A quad antenna~A Yagi antenna~A Zepp antenna~C~~7-30
T9A04~How many directly driven elements do most beam antennas have?~None~One~Two~Three~B~~7-30
T9A05~What is a parasitic beam antenna?~An antenna where some elements obtain their radio energy by induction or radiation from a driven element~An antenna where wave traps are used to magnetically couple the elements~An antenna where all elements are driven by direct connection to the feed line~An antenna where the driven element obtains its radio energy by induction or radiation from director elements~A~~7-30
T9A06~What are the parasitic elements of a Yagi antenna?~The driven element and any reflectors~The director and the driven element~Only the reflectors (if any)~Any directors or any reflectors~D~~7-30
T9A07~What is a cubical quad antenna?~Four straight, parallel elements in line with each other, each approximately 1/2-electrical wavelength long~Two or more parallel four-sided wire loops, each approximately one-electrical wavelength long~A vertical conductor 1/4-electrical wavelength high, fed at the bottom~A center-fed wire 1/2-electrical wavelength long~B~~7-31
T9A08~What is a delta loop antenna?~A type of cubical quad antenna, except with triangular elements rather than square~A large copper ring or wire loop, used in direction finding~An antenna system made of three vertical antennas, arranged in a triangular shape~An antenna made from several triangular coils of wire on an insulating form~A~~7-31
T9A09~What type of non-directional antenna is easy to make at home and works well outdoors?~A Yagi~A delta loop~A cubical quad~A ground plane~D~~7-16
T9A10~What type of antenna is made when a magnetic-base whip antenna is placed on the roof of a car?~A Yagi~A delta loop~A cubical quad~A ground plane~D~~7-18
T9A11~If a magnetic-base whip antenna is placed on the roof of a car, in what direction does it send out radio energy?~It goes out equally well in all horizontal directions~Most of it goes in one direction~Most of it goes equally in two opposite directions~Most of it is aimed high into the air~A~~7-18
T9B01~What does horizontal wave polarization mean?~The magnetic lines of force of a radio wave are parallel to the earth's surface~The electric lines of force of a radio wave are parallel to the earth's surface~The electric lines of force of a radio wave are perpendicular to the earth's surface~The electric and magnetic lines of force of a radio wave are perpendicular to the earth's surface~B~~7-29
T9B02~What does vertical wave polarization mean?~The electric lines of force of a radio wave are parallel to the earth's surface~The magnetic lines of force of a radio wave are perpendicular to the earth's surface~The electric lines of force of a radio wave are perpendicular to the earth's surface~The electric and magnetic lines of force of a radio wave are parallel to the earth's surface~C~~7-29
T9B03~What electromagnetic-wave polarization does a Yagi antenna have when its elements are parallel to the earth's surface?~Circular~Helical~Horizontal~Vertical~C~~7-29
T9B04~What electromagnetic-wave polarization does a half-wavelength antenna have when it is perpendicular to the earth's surface?~Circular~Horizontal~Parabolical~Vertical~D~~7-29
T9B05~What electromagnetic-wave polarization does most man-made electrical noise have in the HF and VHF spectrum?~Horizontal~Left-hand circular~Right-hand circular~Vertical~D~~7-30
T9B06~What does standing-wave ratio mean?~The ratio of maximum to minimum inductances on a feed line~The ratio of maximum to minimum resistances on a feed line~The ratio of maximum to minimum impedances on a feed line~The ratio of maximum to minimum voltages on a feed line~D~~7-6
T9B07~What does forward power mean?~The power traveling from the transmitter to the antenna~The power radiated from the top of an antenna system~The power produced during the positive half of an RF cycle~The power used to drive a linear amplifier~A~~7-6
T9B08~What does reflected power mean?~The power radiated down to the ground from an antenna~The power returned to a transmitter from an antenna~The power produced during the negative half of an RF cycle~The power returned to an antenna by buildings and trees~B~~7-6
T9B09~What happens to radio energy when it is sent through a poor quality coaxial cable?~It causes spurious emissions~It is returned to the transmitter's chassis ground~It is converted to heat in the cable~It causes interference to other stations near the transmitting frequency~C~~7-3
T9B10~What is an unbalanced line?~Feed line with neither conductor connected to ground~Feed line with both conductors connected to ground~Feed line with one conductor connected to ground~Feed line with both conductors connected to each other~C~~7-6
T9B11~What device can be installed to feed a balanced antenna with an unbalanced feed line?~A balun~A loading coil~A triaxial transformer~A wavetrap~A~~7-6
T9C01~What common connector usually joins RG-213 coaxial cable to an HF transceiver?~An F-type cable connector~A PL-259 connector~A banana plug connector~A binding post connector~B~~7-28
T9C02~What common connector usually joins a hand-held transceiver to its antenna?~A BNC connector~A PL-259 connector~An F-type cable connector~A binding post connector~A~~7-28
T9C03~Which of these common connectors has the lowest loss at UHF?~An F-type cable connector~A type-N connector~A BNC connector~A PL-259 connector~B~~7-28
T9C04~If you install a 6-meter Yagi antenna on a tower 150 feet from your transmitter, which of the following feed lines is best?~RG-213~RG-58~RG-59~RG-174~A~~7-27
T9C05~If you have a transmitter and an antenna which are 50 feet apart, but are connected by 200 feet of RG-58 coaxial cable, what should be done to reduce feed line loss?~Cut off the excess cable so the feed line is an even number of wavelengths long~Cut off the excess cable so the feed line is an odd number of wavelengths long~Cut off the excess cable~Roll the excess cable into a coil which is as small as possible~C~~7-27
T9C06~As the length of a feed line is changed, what happens to signal loss?~Signal loss is the same for any length of feed line~Signal loss increases as length increases~Signal loss decreases as length increases~Signal loss is the least when the length is the same as the signal's wavelength~B~~7-27
T9C07~As the frequency of a signal is changed, what happens to signal loss in a feed line?~Signal loss is the same for any frequency~Signal loss increases with increasing frequency~Signal loss increases with decreasing frequency~Signal loss is the least when the signal's wavelength is the same as the feed line's length~B~~7-27
T9C08~If your antenna feed line gets hot when you are transmitting, what might this mean?~You should transmit using less power~The conductors in the feed line are not insulated very well~The feed line is too long~The SWR may be too high, or the feed line loss may be high ~D~~7-27
T9C09~Why should you make sure that no one can touch an open-wire feed line while you are transmitting with it?~Because contact might cause a short circuit and damage the transmitter~Because contact might break the feed line~Because contact might cause spurious emissions~Because high-voltage radio energy might burn the person~D~~7-25
T9C10~For RF safety, what is the best thing to do with your transmitting antennas?~Use vertical polarization~Use horizontal polarization~Mount the antennas where no one can come near them~Mount the antenna close to the ground~C~~7-25
T9C11~Why should you regularly clean, tighten and re-solder all antenna connectors?~To help keep their resistance at a minimum~To keep them looking nice~To keep them from getting stuck in place~To increase their capacitance~A~~7-28
