The location at which the control operator function is performed
The operating position of any amateur station operating as a repeater user station
The physical location of any Amateur Radio transmitter, even if it is operated by radio link from some other location
The variable frequency oscillator (VFO) of the transmitter
3AA-1.2
#What is the term for the location at which the control operator function is performed?
The control point
The operating desk
The station location
The manual control location
; **** The following question (3AA-2.1) has been locked out of use for
; examinations on or after 2/14/91 ****
;3AA-2.1 removed
;#What are the HF privileges authorized to a Technician class control operator in ITU Region 2?
3700 to 3750 kHz, 7100 to 7150 kHz (7050 to 7075 kHz when station location is outside Region 2), 21,100 to 21,200 kHz, and 28,100 to 28,500 kHz only
3700 to 3750 kHz, 7100 to 7150 kHz (7050 to 7075 kHz when terrestrial station location is in Alaska or Hawaii or outside Region 2), 14,100 to 14,150 kHz, 21,100 to 21,150 kHz, and 28,100 to 28,150 kHz only
28,000 to 29,700 kHz only
3700 to 3750 kHz, 7100 to 7150 kHz (7050 to 7075 kHz when terrestrial station location is in Alaska or Hawaii or outside Region 2), and 21,100 to 21,200 kHz only
3AA-2.2
#Which operator licenses authorize privileges on 52.525 MHz?
Extra, Advanced, General, Technician only
Extra, Advanced only
Extra, Advanced, General only
Extra, Advanced, General, Technician, Novice
3AA-2.3
#Which operator licenses authorize privileges on 146.52 MHz?
Extra, Advanced, General, Technician only
Extra, Advanced, General, Technician, Novice
Extra, Advanced, General only
Extra, Advanced only
3AA-2.4
#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
3AA-2.5
#Which operator licenses authorize privileges on 446.0 MHz?
Extra, Advanced, General, Technician only
Extra, Advanced, General, Technician, Novice
Extra, Advanced, General only
Extra, Advanced only
3AA-3.1
#How often do amateur service licenses generally need to be renewed?
Every 10 years
Every 5 years
Every 2 years
They are lifetime licenses
3AA-3.2
#The FCC currently issues amateur licenses carrying 10- year terms. 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
3AA-3.3
#What action would you take to modify 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
Write the FCC at their nearest field office
There is no need to modify an amateur license between renewals
3AA-4.1
#On what frequencies within the 6-meter wavelength band may FM phone emissions be transmitted?
50.1-54.0 MHz only
50.0-54.0 MHz only
51.0-54.0 MHz only
52.0-54.0 MHz only
3AA-4.2
#On what frequencies within the 2-meter wavelength band may FM 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
3AA-4.3
#What emission type may always be used for station identification, regardless of the transmitting frequency?
A1A
F1B
A2B
A3E
3AA-5.1
#If you are using a frequency within a band designated to the amateur service on a secondary basis and another station assigned to a primary service on that band causes interference, what action should you take?
Change frequencies; you may also be causing interference to the other station and that would be a violation of FCC rules
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
3AA-5.2
#What is the basic principle of frequency sharing between two stations allocated to a primary service within a frequency band, but each in a different ITU Region or Subregion?
Both stations have an equal right to operate on the frequency
The station with a control operator holding a lesser class of license must yield the frequency to the station with a control operator holding a higher class license
The station with a lower power output must yield the frequency to the station with a higher power output
Stations in ITU Regions 1 and 3 must yield the frequency to stations in ITU Region 2
3AA-6-1.1
#FCC Rules specify the maximum transmitter power that you may use with your amateur station. At what point in your station is the transmitter power measured?
At the antenna terminals of the transmitter or amplifier
By measuring the final amplifier supply voltage inside the transmitter or amplifier
By measuring the final amplifier supply current inside the transmitter or amplifier
On the antenna itself, after the feed line
3AA-6-1.2
#What is the term used to define the average power supplied to the antenna transmission line during one RF cycle at the crest of the modulation envelope?
Peak envelope power
Peak transmitter power
Peak output power
Average radio-frequency power
3AA-6-2.1
#Notwithstanding the numerical limitations in the FCC Rules, how much transmitting power shall be used by an amateur station?
The minimum power necessary to carry out the desired communication
There is no regulation other than the numerical limits
The minimum power level required to achieve S9 signal reports
The maximum power available, as long as it is under the allowable limit
3AA-6-3.1
#What is the maximum transmitting power permitted an amateur station on 146.52 MHz?
1500 watts PEP output
200 watts PEP output
500 watts ERP
1000 watts DC input
3AA-6-4.1
#What is the maximum transmitting power permitted an amateur station in beacon operation?
100 watts PEP output
10 watts PEP output
500 watts PEP output
1500 watts PEP output
3AA-7-1.1
#What is the maximum sending speed permitted for a RTTY transmission between 28 and 50 MHz?
1200 bauds
56 kilobauds
19.6 kilobauds
300 bauds
3AA-7-1.2
#What is the maximum sending speed permitted for a RTTY transmission between 50 and 220 MHz?
19.6 kilobauds
56 kilobauds
1200 bauds
300 bauds
3AA-7-1.3
#What is the maximum sending speed permitted for a RTTY transmission above 220 MHz?
56 kilobauds
300 bauds
1200 bauds
19.6 kilobauds
3AA-7-2.1
#What is the maximum frequency shift permitted for RTTY when transmitted below 50 MHz?
1000 Hz
100 Hz
500 Hz
5000 Hz
3AA-7-2.2
#What is the maximum frequency shift permitted for RTTY when transmitted above 50 MHz?
The FCC rules do not specify a maximum frequency shift above 50 MHz
100 Hz or the sending speed, in bauds, whichever is greater
500 Hz or the sending speed, in bauds, whichever is greater
5000 Hz or the sending speed, in bauds, whichever is greater
3AA-7-3.1
#What is the authorized bandwidth of an RTTY, data or multiplexed emission using a specified digital code within the frequency range of 50 to 225 MHz?
20 kHz
50 kHz
The total bandwidth shall not exceed that of a single-sideband emission
The total bandwidth shall not exceed 10 times that of a CW emission
3AA-7-3.2
#What is the authorized bandwidth of an RTTY, data or multiplexed emission using an unspecified digital code within the frequency range of 220 to 450 MHz?
100 kHz
50 kHz
150 kHz
200 kHz
3AA-7-3.3
#What is the maximum authorized bandwidth of an RTTY, data or multiplexed emission using an unspecified digital code with the 420 to 450 MHz amateur band?
100 kHz
50 kHz
200 kHz
300 kHz
3AA-8-1.1
#How must a control operator who has a Novice license and a Certificate of Successful Completion of Examination identify his/her station when transmitting on 146.34 MHz?
The licensee gives his or her call sign, followed by any suitable word that denotes the slant mark and the identifier "KT"
The new Technician may not operate on 146.34 until his or her new license arrives
No special form of identification is needed
The licensee gives his or her call sign and states the location of the VE examination where he or she obtained the certificate of successful completion
3AA-8-2.1
#Which language(s) must be used when making the station identification by telephony?
English must be used for identification
The language being used for the contact may be used if it is not English, providing the US has a third-party traffic agreement with that country
Any language may be used, if the country which uses that language is a member of the International Telecommunication Union
The language being used for the contact must be used for identification purposes
3AA-8-3.1
#What does the FCC recommend to aid correct station identification when using phone?
A recognized phonetic alphabet
A speech compressor
Q signals
Unique words of the operator's choice
3AA-9-1.1
#What is the term used to describe an amateur station transmitting communications for the purpose of observation of propagation and reception or other related experimental activities?
Beacon operation
Repeater operation
Auxiliary operation
Radio control operation
3AA-9-2.1
#What class of amateur operator license must you hold to operate a beacon station?
Technician, General, Advanced or Amateur Extra class
General, Advanced or Amateur Extra class
Amateur Extra class only
Any license class
3AA-10.1
#What is the maximum transmitter power an amateur station is permitted when transmitting signals to control a model craft?
One watt
One milliwatt
Two watts
Three watts
3AA-10.2
#What minimum information must be indicated on the label affixed to a transmitter transmitting signals to control a model craft?
Station call sign and the station licensee's name and address
Station call sign
Station call sign and operating times
Station call sign, class of license, and operating times
3AA-10.3
#What are the station identification requirements for an amateur station transmitting signals to control a model craft?
Station identification is not required provided that a label indicating the station call sign and the station licensee's name and address is affixed to the station transmitter
Once every ten minutes, and at the beginning and end of each transmission
Once every ten minutes
At the beginning and end of each transmission
3AA-10.4
#Where must the writing indicating the station call sign and the licensee's name and address be affixed in order to operate under the special rules for radio control of remote model craft and vehicles?
It must be affixed to the transmitter
It must be in the operator's possession
It must be affixed to the craft or vehicle
It must be filed with the nearest FCC Field Office
3AA-11-1.1
#If an amateur repeater is causing harmful interference to another amateur repeater and a frequency coordinator has coordinated (recommends) the operation of one station and not the other, who is primarily responsible for resolving the interference?
The licensee of the non-coordinated (unrecommended) repeater
Both repeater licensees
The licensee of the coordinated (recommended) repeater
The frequency coordinator
3AA-11-1.2
#If an amateur repeater is causing harmful interference to another amateur repeater and a frequency coordinator has coordinated (recommends) the operation of both stations, who is primarily responsible for resolving the interference?
Both repeater licensees
The licensee of the repeater which has been coordinated for the longest period of time
The licensee of the repeater which has been coordinated the most recently
The frequency coordinator
3AA-11-1.3
#If an amateur repeater is causing harmful interference to another amateur repeater and a frequency coordinator has not coordinated the operation of 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
3AA-11-2.1
#Under what circumstances does the FCC declare a temporary state of communication emergency?
When a disaster disrupts normal communications systems in a particular area
When a declaration of war is received from Congress
When the maximum usable frequency goes above 28 MHz
When communications facilities in Washington, DC, are disrupted
3AA-11-2.2
#By what means should a request for a declaration of a temporary state of communication emergency be initiated?
Communication with the FCC Engineer-In-Charge of the affected area
Communication with the US senator or congressman for the area affected
Communication with the local Emergency Coordinator
Communication with the Chief of the FCC Private Radio Bureau
3AA-11-2.3
#What information is included in an FCC declaration of a temporary state of communication emergency?
Any special conditions and special rules to be observed during the communication emergency
Designation of the areas affected and of organizations authorized to use radio communications in the affected area
Designation of amateur frequency bands for use only by amateurs participating in emergency communications in the affected area, and complete suspension of Novice operating privileges for the duration of the emergency
Suspension of amateur rules regarding station identification and business communication
3AA-11-2.4
#If a disaster disrupts normal communication systems in an area where the amateur service is regulated by the FCC, what kinds of transmissions are authorized to amateur stations in such an area?
Communications which are necessary to meet essential communication needs and facilitate relief actions
Communications which allow a commercial business to continue to operate in the affected area
Communications for which material compensation has been paid to the amateur operator for delivery into the affected area
Communications which are to be used for program production or newsgathering for broadcasting purposes
3AA-12.1
#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 emanating from any class of station other than amateur
The transmission of any one-way radio communication, regardless of purpose or content
Any one-way or two-way radio communication involving more than two stations
3AA-12.2
#Which of the following is an amateur station that cannot automatically retransmit radio signals of other amateur stations?
Beacon station
Auxiliary station
Repeater station
Space station
3AA-12.3
#Which of the following is an amateur station that is permitted to automatically retransmit radio signals of other amateur stations?
Space station
Beacon station
Official bulletin station
RACES station
3AA-12.4
#Signals from what type of radio station may be directly retransmitted by an amateur station?
US Government communications between the space shuttle and associated Earth stations with prior approval from the National Aeronautics and Space Administration (NASA)
AM radio station
Police or fire department radio station
NOAA weather station
3AA-12.5
#When may US Government communications between the space shuttle and associated Earth stations be directly retransmitted by an amateur station?
After prior approval has been obtained from the National Aeronautics and Space Administration (NASA)
After prior approval has been obtained from the FCC in Washington, DC
No radio stations other than amateur may be retransmitted in the amateur service
After prior approval has been obtained from the nearest FCC Engineer-In-Charge
3AA-13.1
#What kinds of one-way communications by amateur stations are not considered broadcasting?
Beacon operation, remote control of a device, emergency communications, information bulletins consisting solely of subject matter of direct interest to the amateur service, and telegraphy practice
All types of one-way communications by amateurs are considered by the FCC as broadcasting
Only code-practice transmissions conducted simultaneously on all available amateur bands below 30 MHz and conducted for more than 40 hours per week are not considered broadcasting
Only actual emergency communications during a declared communications emergency are exempt
3AA-13.2
#Which of the following one-way communications may not be transmitted in the amateur service?
Transmission of music
Transmissions to remotely control a device at a distant location
Transmissions to assist persons learning or improving their proficiency in Morse code
Brief transmissions to make adjustments to the station
3AA-13.3
#What kinds of one-way information bulletins may be transmitted by amateur stations?
Messages directed only to amateur operators consisting solely of subject matter of direct interest to the amateur service
NOAA weather bulletins
Commuter traffic reports from local radio stations
Regularly scheduled announcements concerning Amateur Radio equipment for sale or trade
3AA-13.4
#What types of one-way amateur communications may be transmitted by an amateur station?
Beacon operation, remote control of a device, information bulletins consisting solely of subject matter of direct interest to the amateur service, telegraphy practice and emergency communications
Beacon operation, radio control, code practice, retransmission of other services
Beacon operation, radio control, transmitting an unmodulated carrier, NOAA weather bulletins
Beacon operation, emergency-drill-practice transmissions, automatic retransmission of NOAA weather transmissions, code practice
3AA-14.1
#What types of material compensation, if any, may be involved in third-party traffic transmitted by an amateur station?
No compensation may be accepted
Payment of an amount agreed upon by the amateur operator and the parties involved
Assistance in maintenance of auxiliary station equipment
Donation of amateur equipment to the control operator
3AA-14.2
#What types of business communications, if any, may be transmitted by an amateur station on behalf of a third party?
Communications to a business may be provided during an emergency as provided by the FCC rules
The FCC rules specifically prohibit communications with a business for any reason
Business communications involving the sale of Amateur Radio equipment
Business communications aiding a broadcast station
3AA-14.3
#Does the FCC allow third-party messages when communicating with Amateur Radio operators in a foreign country?
Yes, when communicating with a person in a country with which the US shares a third-party agreement
Third-party messages with a foreign country are only allowed on behalf of other amateurs.
Yes, provided the third-party message involves the immediate family of one of the communicating amateurs
Under no circumstances may US amateurs exchange third-party messages with an amateur in a foreign country
3AA-15.1
#Under what circumstances, if any, may a third party participate in radio communications from an amateur station if the third party is ineligible to be a control operator of one of the stations?
A control operator must be present at the control point and continuously monitor and supervise the third party participation. Also, contacts may only be made with amateurs in the US and countries with which the US has a third-party communications agreement
A control operator must be present and continuously monitor and supervise the radio communication to ensure compliance with the rules only if contacts are made with amateurs in countries with which the US has no third-party traffic agreement
A control operator must be present and continuously monitor and supervise the radio communication to ensure compliance with the rules. In addition, the control operator must key the transmitter and make the station identification.
A control operator must be present and continuously monitor and supervise the radio communication to ensure compliance with the rules. In addition, if contacts are made on frequencies below 30 MHz, the control operator must transmit the call signs of both stations involved in the contact at 10-minute intervals
3AA-15.2
#Where must the control operator be situated when a third party is participating in radio communications from an amateur station?
The control operator must be present at the control point
If a radio remote control is used, the control operator may be physically separated from the control point, when provisions are incorporated to shut off the transmitter by remote control
If the control operator supervises the third party until he or she is satisfied of the competence of the third party, the control operator may leave the control point
If the third party holds a valid radiotelegraph license issued by the FCC, no supervision is necessary
3AA-15.3
#What must the control operator do while a third party is participating in radio communications?
The control operator must continuously monitor and supervise the third party's participation
If the third party holds a valid commercial radiotelegraph license, no supervision is necessary
The control operator must tune up and down 5 kHz from the transmitting frequency on another receiver, to ensure that no interference is taking place
If a radio control link is available, the control operator may leave the room
3AA-15.4
#In an exchange of international third-party communications, when is the station identification procedure required?
At the end of each exchange of communications
Only at the beginning of the communications
The station identification procedure is not required during international third-party communications
Only at the end of multiple exchanges of communications
3AA-16.1
#Under what circumstances, if any, may an amateur station transmit radio communications containing obscene words?
Obscene words are prohibited in Amateur Radio transmissions
Obscene words are permitted when they do not cause interference to any other radio communication or signal
Obscene words are permitted when they are not retransmitted through repeater or auxiliary stations
Obscene words are permitted, but there is an unwritten rule among amateurs that they should not be used on the air
3AA-16.2
#Under what circumstances, if any, may an amateur station transmit radio communications containing indecent words?
Indecent words are prohibited in Amateur Radio transmissions
Indecent words are permitted when they do not cause interference to any other radio communication or signal
Indecent words are permitted when they are not retransmitted through repeater or auxiliary stations
Indecent words are permitted, but there is an unwritten rule among amateurs that they should not be used on the air
3AA-16.3
#Under what circumstances, if any, may an amateur station transmit radio communications containing profane words?
Profane words are prohibited in Amateur Radio transmissions
Profane words are permitted when they are not retransmitted through repeater or auxiliary stations
Profane words are permitted, but there is an unwritten rule among amateurs that they should not be used on the air
Profane words are permitted when they do not cause interference to any other radio communication or signal
3AA-17.1
#Which of the following VHF/UHF bands may not be used by Earth stations for satellite communications?
#What is the meaning of: "Your 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
3AB-1.2
#What is the meaning of: "Your report is three three..."?
Your signal is readable with considerable difficulty and weak in strength
The contact is serial number thirty-three
The station is located at latitude 33 degrees
Your signal is unreadable, very weak in strength
3AB-1.3
#What is the meaning of: "Your report is five nine plus 20 dB..."?
A relative signal-strength meter reading is 20 decibels greater than strength 9
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
3AB-2-1.1
#How should a QSO be initiated through a station in repeater operation?
Call the desired station and then identify your own station
Say "breaker, breaker 79"
Call "CQ" three times and identify three times
Wait for a "CQ" to be called and then answer it
3AB-2-1.2
#Why should users of a station in repeater operation pause briefly between transmissions?
To listen for any hams wanting to break in
To check the SWR of the repeater
To reach for pencil and paper for third party traffic
To dial up the repeater's autopatch
3AB-2-1.3
#Why should users of a station in repeater operation keep their transmissions short and thoughtful?
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 non-hams that are listening a chance to respond
To keep long-distance charges down
3AB-2-1.4
#What is the proper procedure to break into an on-going QSO through a station in repeater operation?
Send your call sign during a break between transmissions
Wait for the end of a transmission and start calling
Shout, "break, break!" to show that you're eager to join the conversation
Turn on your 100-watt amplifier and override whoever is talking
3AB-2-1.5
#What is the purpose of repeater operation?
To enable mobile and low-power stations to extend their usable range
To cut your power bill by using someone's higher power system
To reduce your telephone bill
To call the ham radio distributor 50 miles away
3AB-2-1.6
#What is meant by "making the repeater time out"?
The repeater's transmission time limit has expired during a single transmission
The repeater's battery supply has run out
The warranty on the repeater duplexer has expired
The repeater is in need of repairs
3AB-2-1.7
#During commuting rush hours, which types of operation should relinquish the use of the repeater?
Third-party communications nets
Mobile operators
Low-power stations
Highway traffic information nets
3AB-2-2.1
#Why should simplex be used where possible instead of using a station in repeater operation?
To avoid tying up the repeater unnecessarily
Farther distances can be reached
To avoid long distance toll charges
To permit the testing of the effectiveness of your antenna
3AB-2-2.2
#When a frequency conflict arises between a simplex operation and a repeater operation, why does good amateur practice call for the simplex operation to move to another frequency?
Changing the repeater's frequency is not practical
The repeater's output power can be turned up to ruin the front end of the station in simplex operation
There are more repeaters than simplex operators
Changing a repeater frequency requires the authorization of the Federal Communications Commission
3AB-2-3.1
#What is the usual input/output frequency separation for stations in repeater operation in the 2-meter wavelength band?
0.6 MHz
1 MHz
1.6 MHz
170 Hz
3AB-2-3.2
#What is the usual input/output frequency separation for stations in repeater operation in the 70-centimeter band?
5 MHz
1.6 MHz
600 kHz
5 kHz
3AB-2-3.3
#What is the usual input/output frequency separation for a 6-meter station in repeater operation?
1 MHz
600 kHz
1.6 MHz
20 kHz
3AB-2-3.4
#What is the usual input/output frequency separation for a 1.25-meter station in repeater operation?
1600 kHz
1000 kHz
600 kHz
1.6 GHz
3AB-2-4.1
#What is a repeater frequency coordinator?
A person or group that recommends frequency pairs for repeater usage
Someone who coordinates the assembly of a repeater station
Someone who provides advice on what kind of system to buy
The club's repeater trustee
3AB-3.1
#Why should local amateur communications be conducted on VHF and UHF frequencies?
To minimize interference on HF bands capable of long- distance sky-wave communication
Because greater output power is permitted on VHF and UHF
Because HF transmissions are not propagated locally
Because absorption is greater at VHF and UHF frequencies
3AB-3.2
#How can on-the-air transmissions be minimized during a lengthy transmitter testing or loading up procedure?
Use a dummy antenna
Choose an unoccupied frequency
Use a non-resonant antenna
Use a resonant antenna that requires no loading up procedure
3AB-3.3
#What is the proper Q signal to use to determine whether a frequency is in use before making a transmission?
QRL?
QRV?
QRU?
QRZ?
3AB-4.1
#What is the proper distress calling procedure when using telephony?
Transmit MAYDAY
Transmit QRRR
Transmit QRZ
Transmit SOS
3AB-4.2
#What is the proper distress calling procedure when using telegraphy?
Transmit SOS
Transmit MAYDAY
Transmit QRRR
Transmit QRZ
3AB-5-1.1
#What is one requirement you must meet before you can participate in RACES drills?
You must be registered with the responsible civil defense organization
You must be registered with ARRL
You must be registered with a local racing organization
You need not register with anyone to operate RACES
3AB-5-1.2
#What is the maximum amount of time allowed per week for RACES drills?
One hour
Eight hours
As many hours as you want
Six hours, but not more than one hour per day
3AB-5-2.1
#How must you identify messages sent during a RACES drill?
As drill or test messages
As emergency messages
As amateur traffic
As official government messages
3AB-6-1.1
#What is the term used to describe first-response communications in an emergency situation?
Tactical communications
Emergency communications
Formal message traffic
National Traffic System messages
3AB-6-1.2
#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 promote efficiency and coordination in public-service communications activities
They are required by the FCC
They promote goodwill among amateurs
3AB-6-2.1
#What is the term used to describe messages sent into or out of a disaster area that pertain to a person's well being?
Health and welfare traffic
Emergency traffic
Tactical traffic
Formal message traffic
3AB-6-3.1
#Why is it important to provide a means of operating your amateur station separate from the commercial AC power lines?
So that you can provide communications in an emergency
So that you can take your station mobile
So that you can operate field day
So that you will comply with Subpart 97.169 of the FCC Rules
3AB-6-3.2
#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 a communications emergency?
That part of the upper atmosphere where enough ions and free electrons exist to affect radio-wave propagation
The boundary between two air masses of different temperature and humidity, along which radio waves can travel
The ball that goes on the top of a mobile whip antenna
That part of the atmosphere where weather takes place
3AC-1-1.2
#What is the region of the outer atmosphere that makes long-distance radio communications possible as a result of bending of radio waves?
Ionosphere
Troposphere
Stratosphere
Magnetosphere
3AC-1-1.3
#What type of solar radiation is most responsible for ionization in the outer atmosphere?
Ultraviolet
Thermal
Ionized particle
Microwave
3AC-1-2.1
#Which ionospheric layer limits daytime radio communications in the 80-meter wavelength band to short distances?
D layer
F1 layer
E layer
F2 layer
3AC-1-2.2
#What is the lowest ionospheric layer?
The D layer
The A layer
The E layer
The F layer
3AC-1-3.1
#What is the lowest region of the ionosphere that is useful for long-distance radio wave propagation?
The E layer
The D layer
The F1 layer
The F2 layer
3AC-1-4.1
#Which layer of the ionosphere is mainly responsible for long-distance sky-wave radio communications?
F2 layer
D layer
E layer
F1 layer
3AC-1-4.2
#What are the two distinct sub-layers of the F layer of the ionosphere during the daytime?
F1 and F2
Troposphere and stratosphere
Electrostatic and electromagnetic
D and E
3AC-1-4.3
#Which two daytime ionospheric layers combine into one layer at night?
F1 and F2
E and F1
D and E
E1 and E2
3AC-2.1
#Which layer of the ionosphere is most responsible for absorption of radio signals during daylight hours?
The D layer
The E layer
The F1 layer
The F2 layer
3AC-2.2
#When is ionospheric absorption most pronounced?
When radio waves enter the D layer at low angles
When tropospheric ducting occurs
When radio waves travel to the F layer
When a temperature inversion occurs
3AC-2.3
#During daylight hours, what effect does the D layer of the ionosphere have on 80-meter radio waves?
The D layer absorbs the signals
The D layer bends the radio waves out into space
The D layer refracts the radio waves back to earth
The D layer has little or no effect on 80-meter radio wave propagation
3AC-2.4
#What causes ionospheric absorption of radio waves?
D layer ionization
A lack of D layer ionization
The presence of ionized clouds in the E layer
Splitting of the F layer
3AC-3.1
#What is usually the condition of the ionosphere just before sunrise?
Ionization is at a minimum
Atmospheric attenuation is at a maximum
Ionization is at a maximum
The E layer is above the F layer
3AC-3.2
#At what time of day does maximum ionization of the ionosphere occur?
Midday
Dusk
Midnight
Dawn
3AC-3.3
#Minimum ionization of the ionosphere occurs daily at what time?
Shortly before dawn
Just after noon
Just after dusk
Shortly before midnight
3AC-3.4
#When is E layer ionization at a maximum?
Midday
Dawn
Dusk
Midnight
3AC-4.1
#What is the name for the highest radio frequency that will be refracted back to earth?
Critical frequency
Lowest usable frequency
Optimum working frequency
Ultra high frequency
3AC-4.2
#What causes the maximum usable frequency to vary?
The amount of ultraviolet and other types of radiation received from the sun
Variations in the temperature of the air at ionospheric levels
Upper-atmospheric wind patterns
Presence of ducting
3AC-4.3
#What does the term maximum usable frequency refer to?
The maximum frequency that allows a radio signal to reach its destination in a single hop
The minimum frequency that allows a radio signal to reach its destination in a single hop
The maximum frequency that allows a radio signal to be absorbed in the lowest ionospheric layer
The minimum frequency that allows a radio signal to be absorbed in the lowest ionospheric layer
3AC-5.1
#When two stations are within each other's skip zone on the frequency being used, what mode of propagation would it be desirable to use?
Scatter-mode propagation
Ground wave propagation
Sky wave propagation
Ionospheric ducting propagation
3AC-5.2
#You are in contact with a distant station and are operating at a frequency close to the maximum usable frequency. If the received signals are weak and somewhat distorted, what type of propagation are you probably experiencing?
Backscatter propagation
Tropospheric ducting
Line-of-sight propagation
Waveguide propagation
3AC-6.1
#What is the transmission path of a wave that travels directly from the transmitting antenna to the receiving antenna called?
Line of sight
The sky wave
The linear wave
The plane wave
3AC-6.2
#How are VHF signals within the range of the visible horizon propagated?
By direct wave
By sky wave
By plane wave
By geometric wave
3AC-7.1
#Ducting occurs in which region of the atmosphere?
Troposphere
F2
Ionosphere
Stratosphere
3AC-7.2
#What effect does tropospheric bending have on 2-meter radio waves?
It increases the distance over which they can be transmitted
It decreases the distance over which they can be transmitted
It tends to garble 2-meter phone transmissions
It reverses the sideband of 2-meter phone transmissions
3AC-7.3
#What atmospheric phenomenon causes tropospheric ducting of radio waves?
A temperature inversion
A very low pressure area
An aurora to the north
Lightning between the transmitting and receiving station
3AC-7.4
#Tropospheric ducting occurs as a result of what phenomenon?
A temperature inversion
Sun spots
An aurora to the north
Lightning between the transmitting and receiving station
3AC-7.5
#What atmospheric phenomenon causes VHF radio waves to be propagated several hundred miles through stable air masses over oceans?
A widespread temperature inversion
Presence of a maritime polar air mass
An overcast of cirriform clouds
Atmospheric pressure of roughly 29 inches of mercury or higher
3AC-7.6
#In what frequency range does tropospheric ducting occur most often?
VHF
LF
MF
HF
! 4; SUBELEMENT 3AD--Amateur Radio Practice (4 Exam Questions)
3AD-1-1.1
#Where should the green wire in an AC line cord be attached in a power supply?
To the chassis
To the fuse
To the "hot" side of the power switch
To the meter
3AD-1-1.2
#Where should the black (or red) wire in a three-wire line cord be attached in a power supply?
To the fuse
To the filter capacitor
To the DC ground
To the chassis
3AD-1-1.3
#Where should the white wire in a three-wire line cord be attached in a power supply?
To the side of the transformer's primary winding without a fuse
To the side of the transformer's primary winding that has a fuse
To the black wire
To the rectifier junction
3AD-1-1.4
#Why is the retaining screw in one terminal of a light socket made of brass while the other one is silver colored?
To indicate correct wiring polarity
To prevent galvanic action
To better conduct current
To reduce skin effect
3AD-1-2.1
#How much electrical current flowing through the human body is usually fatal?
As little as 100 milliamperes may be fatal
Approximately 10 amperes is required to be fatal
More than 20 amperes is needed to kill a human being
No amount of current will harm you. Voltages of over 2000 volts are always fatal, however
3AD-1-2.2
#What is the minimum voltage considered to be dangerous to humans?
30 volts
100 volts
1000 volts
2000 volts
3AD-1-2.3
#How much electrical current flowing through the human body is usually painful?
As little as 50 milliamperes may be painful
Approximately 10 amperes is required to be painful
More than 20 amperes is needed to be painful to a human being
No amount of current will be painful. Voltages of over 2000 volts are always painful, however
3AD-1-3.1
#Where should the main power-line switch for a high voltage power supply be situated?
Where it can be seen and reached easily
Inside the cabinet, to interrupt power when the cabinet is opened
On the rear panel of the high-voltage supply
This supply should not be switch-operated
3AD-2-1.1
#How is a voltmeter typically connected to a circuit under test?
In parallel with the circuit
In series with the circuit
In quadrature with the circuit
In phase with the circuit
3AD-2-2.1
#How can the range of a voltmeter be extended?
By adding resistance in series with the meter
By adding resistance in series with the circuit under test
By adding resistance in parallel with the circuit under test
By adding resistance in parallel with the meter
3AD-3-1.1
#How is an ammeter typically 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
3AD-3-2.1
#How can the range of an ammeter be extended?
By adding resistance in parallel with the meter
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
3AD-4.1
#What is a multimeter?
An instrument capable of reading voltage, current and resistance
An instrument capable of reading SWR and power
An instrument capable of reading resistance, capacitance and inductance
An instrument capable of reading resistance and reactance
3AD-5-1.1
#Where in the antenna transmission line should a peak-reading wattmeter be attached to determine the transmitter output power?
At the transmitter output
At the antenna feed point
One-half wavelength from the antenna feed point
One-quarter wavelength from the transmitter output
3AD-5-1.2
#For the most accurate readings of transmitter output power, where should the RF wattmeter be inserted?
The wattmeter should be inserted and the output power measured at the transmitter antenna jack
The wattmeter should be inserted and the output measured one-quarter wavelength from the antenna feed point
The wattmeter should be inserted and the output measured one-half wavelength from the antenna feed point
The wattmeter should be inserted and the output power measured at the Transmatch output
3AD-5-1.3
#At what line impedance are RF wattmeters usually designed to operate?
50 ohms
25 ohms
100 ohms
300 ohms
3AD-5-1.4
#What is a directional wattmeter?
An instrument that measures forward or reflected power
An instrument that measures the directional pattern of an antenna
An instrument that measures the energy consumed by the transmitter
An instrument that measures thermal heating in a load resistor
3AD-5-2.1
#If a directional RF wattmeter indicates 90 watts forward power and 10 watts reflected power, what is the actual transmitter output power?
80 watts
10 watts
90 watts
100 watts
3AD-5-2.2
#If a directional RF wattmeter indicates 96 watts forward power and 4 watts reflected power, what is the actual transmitter output power?
92 watts
80 watts
88 watts
100 watts
3AD-6.1
#What is a marker generator?
A high-stability oscillator that generates a series of reference signals at known frequency intervals
A low-stability oscillator that "sweeps" through a band of frequencies
An oscillator often used in aircraft to determine the craft's location relative to the inner and outer markers at airports
A high-stability oscillator whose output frequency and amplitude can be varied over a wide range
3AD-6.2
#What type of circuit is used to inject a frequency calibration signal into a communications receiver?
A crystal calibrator
A product detector
A receiver incremental tuning circuit
A balanced modulator
3AD-6.3
#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 an SSB transmitter
To test the frequency deviation of an FM transmitter
3AD-7.1
#What piece of test equipment produces a stable, low-level signal that can be set to a specific frequency?
A signal generator
A wavemeter
A reflectometer
A balanced modulator
3AD-7.2
#What is an RF signal generator commonly used for?
Aligning receiver tuned circuits
Measuring RF signal amplitude
Adjusting the transmitter impedance-matching network
Measuring transmission line impedance
3AD-8-1.1
#What is a reflectometer?
An instrument used to measure standing wave ratio
An instrument used to measure signals reflected from the ionosphere
An instrument used to measure radiation resistance
An instrument used to measure transmission-line impedance
3AD-8-1.2
#What is the device that can indicate an impedance mismatch in an antenna system?
A reflectometer
A field-strength meter
A set of lecher wires
A wavemeter
3AD-8-2.1
#For best accuracy when adjusting the impedance match between an antenna and feed line, where should the match-indicating device be inserted?
At the antenna feed point
At the transmitter
At the midpoint of the feed line
Anywhere along the feed line
3AD-8-2.2
#Where should a reflectometer be inserted into a long antenna transmission line in order to obtain the most valid standing wave ratio indication?
At the antenna end
At any quarter-wavelength interval along the transmission line
At the receiver end
At any even half-wavelength interval along the transmission line
3AD-9.1
#When adjusting a transmitter filter circuit, what device is connected to the transmitter output?
A dummy antenna
A multimeter
A set of Litz wires
A receiver
3AD-9.2
#What is a dummy antenna?
A nonradiating load for a transmitter
An isotropic radiator
An antenna used as a reference for gain measurements
The image of an antenna, located below ground
3AD-9.3
#Of what materials may a dummy antenna be made?
A noninductive resistor
A wire-wound resistor
A diode and resistor combination
A coil and capacitor combination
3AD-9.4
#What station accessory is used in place of an antenna during transmitter tests so that no signal is radiated?
A dummy antenna
A Transmatch
A low-pass filter
A decoupling resistor
3AD-9.5
#What is the purpose of a dummy load?
To allow off-the-air transmitter testing
To reduce output power for QRP operation
To give comparative signal reports
To allow Transmatch tuning without causing interference
3AD-9.6
#How many watts should a dummy load for use with a 100-watt emission J3E transmitter with 50 ohm output be able to dissipate?
A minimum of 100 watts continuous
A minimum of 141 watts continuous
A minimum of 175 watts continuous
A minimum of 200 watts continuous
3AD-10.1
#What is an S-meter?
A meter used to measure relative signal strength in a receiver
A meter used to measure sideband suppression
A meter used to measure spurious emissions from a transmitter
A meter used to measure solar flux
3AD-10.2
#A meter that is used to measure relative signal strength in a receiver is known as what?
An S-meter
An RST-meter
A signal deviation meter
An SSB meter
3AD-11-1.1
#Large amounts of RF energy may cause damage to body tissue, depending on the wavelength of the signal, the energy density of the RF field, and other factors. How does RF energy effect body tissue?
It heats the tissue
It causes radiation poisoning
It cools the tissue
It produces genetic changes in the tissue
3AD-11-1.2
#Which body organ is most susceptible to damage from the heating effects of radio frequency radiation?
Eyes
Hands
Heart
Liver
3AD-11-2.1
#Scientists have devoted a great deal of effort to determine safe RF exposure limits. What organization has established an RF protection guide?
The American National Standards Institute
The Institute of Electrical and Electronics Engineers
The American Radio Relay League
The Environmental Protection Agency
3AD-11-2.2
#What is the purpose of the ANSI RF protection guide?
It sets RF exposure limits under certain circumstances
It protects you from unscrupulous radio dealers
It sets transmitter power limits
It sets antenna height requirements
3AD-11-2.3
#The American National Standards Institute RF protection guide sets RF exposure limits under certain circumstances. In what frequency range is the maximum exposure level the most stringent (lowest)?
300 to 3000 MHz
3 to 30 MHz
30 to 300 MHz
Above 1.5 GHz
3AD-11-2.4
#The American National Standards Institute RF protection guide sets RF exposure limits under certain circumstances. Why is the maximum exposure level the most stringent (lowest) in the ranges between 30 MHz and 300 MHz?
Human body lengths are close to whole-body resonance in that range
There are fewer transmitters operating in this frequency range
There are more transmitters operating in this frequency range
Most transmissions in this frequency range are for an extended time
3AD-11-2.5
#The American National Standards Institute RF protection guide sets RF exposure limits under certain circumstances. What is the maximum safe power output to the antenna terminal of a hand-held VHF or UHF radio, as set by this RF protection guide?
7 watts
125 milliwatts
10 watts
25 watts
3AD-11-3.1
#After you make internal tuning adjustments to your VHF power amplifier, what should you do before you turn the amplifier on?
Be certain all amplifier shielding is fastened in place
Remove all amplifier shielding to ensure maximum cooling
Connect a noise bridge to eliminate any interference
Be certain no antenna is attached so that you will not cause any interference
The opposition to the flow of current in an electric circuit that does not contain reactance
The opposition to the flow of current in an electric circuit containing inductance
The opposition to the flow of current in an electric circuit containing capacitance
The opposition to the flow of current in an electric circuit containing reactance
3AE-1-2.1
#What is an ohm?
The basic unit of resistance
The basic unit of capacitance
The basic unit of inductance
The basic unit of admittance
3AE-1-2.2
#What is the unit measurement of resistance?
Ohm
Volt
Ampere
Joule
3AE-1-3.1
#Two equal-value resistors are connected in series. How does the total resistance of this combination compare with the value of either resistor by itself?
The total resistance is twice the value of either resistor
The total resistance is half the value of either resistor
The total resistance is the same as the value of either resistor
The total resistance is the square of the value of either resistor
3AE-1-3.2
#How does the total resistance of a string of series-connected resistors compare to the values of the individual resistors?
The total resistance is the sum of all the individual resistance values
The total resistance is the square of the sum of all the individual resistor values
The total resistance is the square root of the sum of the individual resistor values
The total resistance is the sum of the squares of the individual resistor values
3AE-1-4.1
#Two equal-value resistors are connected in parallel. How does the total resistance of this combination compare with the value of either resistor by itself?
The total resistance is half the value of either resistor
The total resistance is twice the value of either resistor
The total resistance is the square of the value of either resistor
The total resistance is the same as the value of either resistor
3AE-1-4.2
#How does the total resistance of a string of parallel-connected resistors compare to the values of the individual resistors?
The total resistance is less than the smallest-value resistor in the combination
The total resistance is the square of the sum of the resistor values
The total resistance is more than the highest-value resistor in the combination
The total resistance is same as the highest-value resistor in the combination
3AE-2.1
#What is Ohm's Law?
A mathematical relationship between resistance, current and applied voltage in a circuit
A mathematical relationship between resistance, voltage and power in a circuit
A mathematical relationship between current, resistance and power in a circuit
A mathematical relationship between current, voltage and power in a circuit
3AE-2.2
#How is the current in a DC circuit calculated when the voltage and resistance are known?
I = E / R
P = I X E
I = R X E
I = E X R
3AE-2.3
#What is the input resistance of a load when a 12-volt battery supplies 0.25 amperes to it?
48 ohms
0.02 ohms
3 ohms
480 ohms
3AE-2.4
#The product of the current and what force gives the electrical power in a circuit?
Electromotive force
Magnetomotive force
Centripetal force
Electrochemical force
3AE-2.5
#What is the input resistance of a load when a 12-volt battery supplies 0.15 amperes to it?
80 ohms
8 ohms
100 ohms
800 ohms
3AE-2.6
#When 120 volts is measured across a 4700-ohm resistor, approximately how much current is flowing through it?
0.026 ampere
39 amperes
3.9 amperes
0.26 ampere
3AE-2.7
#When 120 volts is measured across a 47000-ohm resistor, approximately how much current is flowing through it?
2.6 mA
392 A
39.2 A
26 mA
3AE-2.8
#When 12 volts is measured across a 4700-ohm resistor, approximately how much current is flowing through it?
2.6 mA
26 mA
39.2 A
392 A
3AE-2.9
#When 12 volts is measured across a 47000-ohm resistor, approximately how much current is flowing through it?
255 uA
255 mA
3917 mA
3917 A
3AE-3-1.1
#What is the term used to describe the ability of a component to store energy in a magnetic field?
Inductance
Admittance
Capacitance
Resistance
3AE-3-2.1
#What is the basic unit of inductance?
Henry
Coulomb
Farad
Ohm
3AE-3-2.2
#What is a henry?
The basic unit of inductance
The basic unit of admittance
The basic unit of capacitance
The basic unit of resistance
3AE-3-2.3
#What is a microhenry?
A basic unit of inductance equal to 10^-6 henrys
A basic unit of inductance equal to 10^-12 henrys
A basic unit of inductance equal to 10^-3 henrys
A basic unit of inductance equal to 10^6 henrys
3AE-3-2.4
#What is a millihenry?
A basic unit of inductance equal to 10^-3 henrys
A basic unit of inductance equal to 10^-12 henrys
A basic unit of inductance equal to 10^-6 henrys
A basic unit of inductance equal to 10^6 henrys
3AE-3-3.1
#Two equal-value inductors are connected in series. How does the total inductance of this combination compare with the value of either inductor by itself?
The total inductance is twice the value of either inductor
The total inductance is half the value of either inductor
The total inductance is equal to the value of either inductor
No comparison can be made without knowing the exact inductances
3AE-3-3.2
#How does the total inductance of a string of series-connected inductors compare to the values of the individual inductors?
The total inductance is equal to the sum of all the individual inductances
The total inductance is equal to the average of all the individual inductances
The total inductance is equal to less than the value of the smallest inductance
No comparison can be made without knowing the exact inductances
3AE-3-4.1
#Two equal-value inductors are connected in parallel. How does the total inductance of this combination compare with the value of either inductor by itself?
The total inductance is half the value of either inductor
The total inductance is twice the value of either inductor
The total inductance is equal to the square of either inductance
No comparison can be made without knowing the exact inductances
3AE-3-4.2
#How does the total inductance of a string of parallel-connected inductors compare to the values of the individual inductors?
The total inductance is less than the smallest inductance value in the combination
The total inductance is equal to the sum of the inductances in the combination
The total inductance is equal to the average of the inductances in the combination
No comparison can be made without knowing the exact inductances
3AE-4-1.1
#What is the term used to describe the ability of a component to store energy in an electric field?
Capacitance
Inductance
Resistance
Tolerance
3AE-4-2.1
#What is the basic unit of capacitance?
Farad
Ohm
Volt
Ampere
3AE-4-2.2
#What is a microfarad?
A basic unit of capacitance equal to 10^-6 farads
A basic unit of capacitance equal to 10^-12 farads
A basic unit of capacitance equal to 10^-2 farads
A basic unit of capacitance equal to 10^6 farads
3AE-4-2.3
#What is a picofarad?
A basic unit of capacitance equal to 10^-12 farads
A basic unit of capacitance equal to 10^-6 farads
A basic unit of capacitance equal to 10^-2 farads
A basic unit of capacitance equal to 10^6 farads
3AE-4-2.4
#What is a farad?
The basic unit of capacitance
The basic unit of resistance
The basic unit of inductance
The basic unit of admittance
3AE-4-3.1
#Two equal-value capacitors are connected in series. How does the total capacitance of this combination compare with the value of either capacitor by itself?
The total capacitance is half the value of either capacitor
The total capacitance is twice the value of either capacitor
The total capacitance is equal to the value of either capacitor
No comparison can be made without knowing the exact capacitances
3AE-4-3.2
#How does the total capacitance of a string of series-connected capacitors compare to the values of the individual capacitors?
The total capacitance is less than the smallest value of capacitance in the combination
The total capacitance is equal to the sum of the capacitances in the combination
The total capacitance is equal to the average of the capacitances in the combination
No comparison can be made without knowing the exact capacitances
3AE-4-4.1
#Two equal-value capacitors are connected in parallel. How does the total capacitance of this combination compare with the value of either capacitor by itself?
The total capacitance is twice the value of either capacitor
The total capacitance is half the value of either capacitor
The total capacitance is equal to the value of either capacitor
No comparison can be made without knowing the exact capacitances
3AE-4-4.2
#How does the total capacitance of a string of parallel-connected capacitors compare to the values of the individual capacitors?
The total capacitance is equal to the sum of the capacitances in the combination
The total capacitance is less than the smallest value of capacitance in the combination
The total capacitance is equal to the average of the capacitances in the combination
No comparison can be made without knowing the exact capacitances
#What are the four common types of resistor construction?
Carbon-composition, carbon-film, metal-film and wire-wound
Carbon-film, metal-film, micro-film and wire-film
Carbon-composition, carbon-film, electrolytic and metal-film
Carbon-film, ferrite, carbon-composition and metal-film
3AF-1-2.1
#What is the primary function of a resistor?
To limit the current in an electric circuit
To store an electric charge
To store a magnetic field
To match a high-impedance source to a low-impedance load
3AF-1-2.2
#What is a variable resistor?
A resistor with a slide or contact that makes the resistance adjustable
A resistor that changes value when an AC voltage is applied to it
A device that can transform a variable voltage into a constant voltage
A resistor that changes value when it is heated
3AF-1-3.1
#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 value of the resistor in henrys
3AF-1-3.2
#How can a carbon resistor's electrical tolerance rating be found?
By using the resistor's color code
By using a wavemeter
By using Thevenin's theorem for resistors
By using the Baudot code
3AF-1-3.3
#What does the fourth color band on a resistor indicate?
The resistance tolerance in percent
The value of the resistor in ohms
The power rating in watts
The resistor composition
3AF-1-3.4
#When the color bands on a group of resistors indicate that they all have the same resistance, what further information about each resistor is needed in order to select those that have nearly equal value?
The tolerance of each resistor
The working voltage rating of each resistor
The composition of each resistor
The current rating of each resistor
3AF-1-4.1
#Why do resistors generate heat?
They convert electrical energy to heat energy
They exhibit reactance
Because of skin effect
To produce thermionic emission
3AF-1-4.2
#Why would a large size resistor be substituted for a smaller one of the same resistance?
To increase power dissipation capability
To obtain better response
To obtain a higher current gain
To produce a greater parallel impedance
3AF-1-5.1
#What is the symbol used to represent a fixed resistor on schematic diagrams? (3AF-1-5.1)
Symbol B
Symbol A
Symbol C
Symbol D
3AF-1-5.2
#What is the symbol used to represent a variable resistor on schematic diagrams. (3AF-1-5.2)
Symbol C
Symbol A
Symbol B
Symbol D
3AF-2-1.1
#What is an inductor core?
The central portion of a coil; may be made from air, iron, brass or other material
The point at which an inductor is tapped to produce resonance
A tight coil of wire used in a transformer
An insulating material placed between the plates of an inductor
3AF-2-1.2
#What are the component parts of a coil?
The wire in the winding and the core material
Two conductive plates and an insulating material
Two or more layers of silicon material
A donut-shaped iron core and a layer of insulating tape
3AF-2-1.3
#Describe an inductor.
A coil of conducting wire
A semiconductor in a conducting shield
Two parallel conducting plates
A straight wire conductor mounted inside a Faraday shield
3AF-2-1.4
#For radio frequency power applications, which type of inductor has the least amount of loss?
Air core
Magnetic wire
Iron core
Slug tuned
3AF-2-2.1
#What is an inductor?
An electronic component that stores energy in a magnetic field
An electronic component that stores energy in an electric field
An electronic component that converts a high voltage to a lower voltage
An electronic component that opposes DC while allowing AC to pass
3AF-2-2.2
#What are the electrical properties of an inductor?
An inductor stores a charge electromagnetically and opposes a change in current
An inductor stores a charge electrostatically and opposes a change in voltage
An inductor stores a charge electrochemically and opposes a change in current
An inductor stores a charge electromechanically and opposes a change in voltage
3AF-2-3.1
#What factors determine the amount of inductance in a coil?
The type of material used in the core, the diameter of the core, the length of the coil and the number of turns of wire used to wind the coil
The type of material used in the core, the diameter of the core and whether the coil is mounted horizontally or vertically
The diameter of the core, the number of turns of wire used to wind the coil and the type of metal used in the wire
The type of material used in the core, the number of turns used to wind the core and the frequency of the current through the coil
3AF-2-3.2
#What can be done to raise the inductance of a 5-microhenry air-core coil to a 5-millihenry coil with the same physical dimensions?
The coil can be wound on an iron core
The coil can be wound on a non-conducting tube
Both ends of the coil can be brought around to form the shape of a donut, or toroid
The coil can be made of a heavier-gauge wire
3AF-2-3.3
#As an iron core is inserted in a coil, what happens to the inductance?
It increases
It decreases
It stays the same
It becomes voltage-dependent
3AF-2-3.4
#As a brass core is inserted in a coil, what happens to the inductance?
It decreases
It increases
It stays the same
It becomes voltage-dependent
3AF-2-4.1
#What is the symbol used to represent an adjustable inductor on schematic diagrams? (3AF-2-4.1)
Symbol A
Symbol B
Symbol C
Symbol D
3AF-2-4.2
#What is the symbol used to represent an iron-core inductor on schematic diagrams? (3AF-2-4.2)
Symbol B
Symbol A
Symbol C
Symbol D
3AF-2-4.3
#What is the symbol used to represent an inductor wound over a toroidal core on schematic diagrams? (3AF-2-4.3)
Symbol C
Symbol A
Symbol B
Symbol D
3AF-3-1.1
#What is a capacitor dielectric?
The insulating material between the plates
The insulating material used for the plates
The conducting material used between the plates
The ferrite material that the plates are mounted on
3AF-3-1.2
#What are the component parts of a capacitor?
Two or more conductive plates with an insulating material between them
The wire used in the winding and the core material
Two or more layers of silicon material
Two insulating plates with a conductive material between them
3AF-3-1.3
#What is an electrolytic capacitor?
A capacitor whose dielectric is formed on one set of plates through electrochemical action
A capacitor whose plates are formed on a thin ceramic layer
A capacitor whose plates are separated by a thin strip of mica insulation
A capacitor whose value varies with applied voltage
3AF-3-1.4
#What is a paper capacitor?
A capacitor whose plates are separated by a layer of paper
A capacitor whose plates are formed on a thin ceramic layer
A capacitor whose plates are separated by a thin strip of mica insulation
A capacitor whose dielectric is formed on one set of plates through electrochemical action
3AF-3-2.1
#What is a capacitor?
An electronic component that stores energy in an electric field
An electronic component that stores energy in a magnetic field
An electronic component that converts a high voltage to a lower voltage
An electronic component that converts power into heat
3AF-3-2.2
#What are the electrical properties of a capacitor?
A capacitor stores a charge electrostatically and opposes a change in voltage
A capacitor stores a charge electrochemically and opposes a change in current
A capacitor stores a charge electromagnetically and opposes a change in current
A capacitor stores a charge electromechanically and opposes a change in voltage
3AF-3-2.3
#What factors must be considered when selecting a capacitor for a circuit?
Type of capacitor, capacitance and voltage rating
Type of capacitor, capacitance and the kilowatt-hour rating
The amount of capacitance, the temperature coefficient and the KVA rating
The type of capacitor, the microscopy coefficient and the temperature coefficient
3AF-3-2.4
#How are the characteristics of a capacitor usually specified?
In microfarads and volts
In volts and amperes
In ohms and watts
In millihenrys and amperes
3AF-3-3.1
#What factors determine the amount of capacitance in a capacitor?
The dielectric constant of the material between the plates, the area of one side of one plate, the separation between the plates and the number of plates
The dielectric constant of the material between the plates, the number of plates and the diameter of the leads 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 dielectric constant of the material between the plates, the surface area of one side of one plate, the number of plates and the type of material used for the protective coating
3AF-3-3.2
#As the plate area of a capacitor is increased, what happens to its capacitance?
Increases
Decreases
Stays the same
Becomes voltage dependent
3AF-3-3.3
#As the plate spacing of a capacitor is increased, what happens to its capacitance?
Decreases
Increases
Stays the same
Becomes voltage dependent
3AF-3-4.1
#What is the symbol used to represent an electrolytic capacitor on schematic diagrams? (3AF-3-4.1)
Symbol D
Symbol A
Symbol B
Symbol C
3AF-3-4.2
#What is the symbol used to represent a variable capacitor on schematic diagrams? (3AF-3-4.2)
#Which frequencies are attenuated by a low-pass filter?
Those above its cut-off frequency
Those within its cut-off frequency
Those within 50 kHz on either side of its cut-off frequency
Those below its cut-off frequency
3AG-1-1.2
#What circuit passes electrical energy below a certain frequency and blocks electrical energy above that frequency?
A low-pass filter
A band-pass filter
A high-pass filter
An input filter
3AG-1-2.1
#Why does virtually every modern transmitter have a built-in low-pass filter connected to its output?
To attenuate excess harmonic radiation
To attenuate frequencies below its cutoff point
To attenuate low frequency interference to other amateurs
To attenuate excess fundamental radiation
3AG-1-2.2
#You believe that excess harmonic radiation from your transmitter is causing interference to your television receiver. What is one possible solution for this problem?
Install a low-pass filter at the transmitter output
Install a low-pass filter on the television receiver
Install a high-pass filter on the transmitter output
Install a band-pass filter on the television receiver
3AG-2-1.1
#What circuit passes electrical energy above a certain frequency and attenuates electrical energy below that frequency?
A high-pass filter
A band-pass filter
An input filter
A low-pass filter
3AG-2-2.1
#Where is the proper place to install a high-pass filter?
At the antenna terminals of a television receiver
Between a transmitter and a Transmatch
Between a Transmatch and the transmission line
On a transmitting antenna
3AG-2-2.2
#Your Amateur Radio transmissions cause interference to your television receiver even though you have installed a low- pass filter at the transmitter output. What is one possible solution for this problem?
Install a high-pass filter at the television antenna terminals
Install a high-pass filter at the transmitter terminals
Install a low-pass filter at the television antenna terminals also
Install a band-pass filter at the television antenna terminals
3AG-3-1.1
#What circuit attenuates electrical energy above a certain frequency and below a lower frequency?
A band-pass filter
A high-pass filter
An input filter
A low-pass filter
3AG-3-1.2
#What general range of RF energy does a band-pass filter reject?
All frequencies above a specified frequency and below a lower specified frequency
All frequencies above a specified frequency
All frequencies below a specified frequency
All frequencies above the upper limit of the band in question
3AG-3-2.1
#The IF stage of a communications receiver uses a filter with a peak response at the intermediate frequency. What term describes this filter response?
A band-pass filter
A high-pass filter
An input filter
A low-pass filter
3AG-4-1.1
#What circuit is likely to be found in all types of receivers?
A detector
An audio filter
A beat frequency oscillator
An RF amplifier
3AG-4-1.2
#What type of transmitter does this block diagram represent? (3AG-4-1.2)
A VFO-controlled transmitter
A simple packet-radio transmitter
A simple crystal-controlled transmitter
A single-sideband transmitter
3AG-4-1.3
#What type of transmitter does this block diagram represent? (3AG-4-1.3)
A simple crystal-controlled transmitter
A simple packet-radio transmitter
A single-sideband transmitter
A VFO-controlled transmitter
3AG-4-1.4
#What is the unlabeled block (?) in this diagram? (3AG-4-1.4)
A detector
An AGC circuit
A power supply
A VFO circuit
3AG-4-1.5
#What type of device does this block diagram represent? (3AG-4-1.5)
A simple superheterodyne receiver
A double-conversion receiver
A variable-frequency oscillator
A simple CW transmitter
3AG-4-2.1
#What type of device does this block diagram represent? (3AG-4-2.1)
A simple FM receiver
A double-conversion receiver
A variable-frequency oscillator
A simple superheterodyne receiver
3AG-4-2.2
#What is the unlabeled block (?) in this diagram? (3AG-4-2.2)
A reactance modulator
A rectifier modulator
A band-pass filter
A crystal oscillator
! 8; SUBELEMENT 3AH--Signals and Emissions (2 Exam Questions)
3AH-1.1
#What is the meaning of the term modulation?
The process of varying some characteristic of a carrier wave for the purpose of conveying information
The process of recovering audio information from a received signal
The process of increasing the average power of a single-sideband transmission
The process of suppressing the carrier in a single-sideband transmitter
3AH-2-1.1
#If the modulator circuit of your FM transmitter fails, what emission type would likely result?
An unmodulated carrier wave
A phase modulated carrier wave
An amplitude modulated carrier wave
A frequency modulated carrier wave
3AH-2-1.2
#What emission does not have sidebands resulting from modulation?
Test
AM phone
FM phone
RTTY
3AH-2-2.1
#What is the FCC emission designator for a Morse code telegraphy signal produced by switching the transmitter output on and off?
CW
Test
AM phone
RTTY
3AH-2-2.2
#What is CW?
Morse code telegraphy using amplitude modulation
Morse code telegraphy using frequency modulation
Morse code telegraphy using phase modulation
Morse code telegraphy using pulse modulation
3AH-2-3.1
#What is RTTY?
Frequency-shift-keyed telegraphy
Amplitude-keyed telegraphy
Frequency-modulated telephony
Phase-modulated telephony
3AH-2-3.2
#What is the emission designation for telegraphy by frequency shift keying without the use of a modulating tone?
RTTY
MCW
CW
Single-sideband phone
3AH-2-4.1
#What emission type results when an on/off keyed audio tone is applied to the microphone input of an FM transmitter?
MCW
RTTY
CW
Single-sideband phone
3AH-2-4.2
#What is tone-modulated international Morse code telegraphy?
Telegraphy produced by an on/off keyed audio tone fed into an FM transmitter
Telephony produced by audio fed into an FM transmitter
Telegraphy produced by on/off keyed audio tone fed into a CW transmitter
Telegraphy produced by on/off keying of the carrier amplitude
3AH-2-5.1
#What is the emission designated as "MCW"?
Frequency-modulated telegraphy using audio tones
Frequency-modulated telephony
Frequency-modulated facsimile using audio tones
Phase-modulated television
3AH-2-5.2
#In an ITU emission designator like A1A, what does the first symbol describe?
The type of the information to be transmitted
The nature of the signal modulating the main carrier
The speed of a radiotelegraph transmission
The type of modulation of the main carrier
3AH-2-5.3
#What emission type results when an AF shift keyer is connected to the microphone jack of an FM phone transmitter?
MCW
SS
RTTY
Image
3AH-2-6.1
#In an ITU emission designator like F3B, what does the second symbol describe?
The nature of the signal modulating the main carrier
The type of modulation of the main carrier
The type of information to be transmitted
The frequency modulation index of a carrier
3AH-2-6.2
#How would you transmit packet using an FM 2-meter transceiver?
Modulate your FM transmitter with audio tones from a terminal node controller
Use your telegraph key to interrupt the carrier wave
Use your mike for telephony
Use your touch-tone (DTMF) key pad to signal in Morse code.
3AH-2-7.1
#What type of emission results when speaking into the microphone of a 2-meter FM handheld transceiver?
Frequency modulated phone
Amplitude modulated phone
Code telegraphy
An unmodulated carrier wave
3AH-2-7.2
#What emission type do most 2-meter FM transmitters transmit?
Frequency modulated phone
Interrupted pure carrier wave
Single-sideband voice emissions
Amplitude modulated carrier waves
; There is a problem with the answer (C) to question 3AH-2-8.1,
; as released by the VEC Question Pool Committee. The most
; important consideration is that an indoor antenna should be
; treated with respect because of the possibility of adverse
; biological effects due to near-field radiation. Another point to
; keep in mind is that insulated wire does not reduce or eliminate
; the risk of RF burns. Finally, a dipole does not pose a fire
3AH-2-8.1
#What is the most important consideration when installing a 10-meter dipole inside an attic?
It will be covered by an insulation to prevent fire and high enough to prevent being accidentally touched during transmission
It will exhibit a low angle of radiation
The dipole must always be run horizontally polarized
Dipoles usually don't work in attics
3AH-2-8.2
#Which type of transmitter will produce a frequency modulated carrier wave?
A phase modulated transmitter
A CW transmitter
An amplitude modulation transmitter
A single-sideband transmitter
3AH-3.1
#What is the term used to describe a constant-amplitude radio-frequency signal?
An RF carrier
An AF carrier
A sideband carrier
A subcarrier
3AH-3.2
#What is another name for an unmodulated radio-frequency signal?
An RF carrier
An AF carrier
A sideband carrier
A subcarrier
3AH-4.1
#What characteristic makes FM telephony especially well-suited for local VHF/UHF radio communications?
Good audio fidelity and high signal-to-noise ratio above a certain signal amplitude threshold
Good audio fidelity and intelligibility under weak-signal conditions
Better rejection of multipath distortion than the AM modes
Better carrier frequency stability than the AM modes
3AH-5.1
#What emission is produced by a transmitter using a reactance modulator?
Phase modulated phone
CW
Unmodulated carrier
Single-sideband, suppressed-carrier phone
3AH-5.2
#What other emission does phase modulation most resemble?
Frequency modulation
Amplitude modulation
Pulse modulation
Single-sideband modulation
3AH-6.1
#Many communications receivers have several IF filters that can be selected by the operator. Why do these filters have different bandwidths?
Because some emission types occupy a wider frequency range than others
Because some ham bands are wider than others
Because different bandwidths help increase the receiver sensitivity
Because different bandwidths improve S-meter readings
3AH-6.2
#List the following signals in order of increasing bandwidth (narrowest signal first): CW, FM voice, RTTY, SSB voice.
CW, RTTY, SSB voice, FM voice
RTTY, CW, SSB voice, FM voice
CW, FM voice, RTTY, SSB voice
CW, SSB voice, RTTY, FM voice
3AH-7-1.1
#To what is the deviation of an FM transmission proportional?
Only the amplitude of the audio modulating signal
Only the frequency of the audio modulating signal
The frequency and the amplitude of the audio modulating signal
The duty cycle of the audio modulating signal
3AH-7-2.1
#What is the result of overdeviation in an FM transmitter?
Out-of-channel emissions (splatter)
Increased transmitter power consumption
Increased transmitter range
Inadequate carrier suppression
3AH-7-2.2
#What is splatter?
Interference to adjacent signals caused by overmodulation of a transmitter
Interference to adjacent signals caused by excessive transmitter keying speeds
Interference to adjacent signals caused by improper transmitter neutralization
Interference to adjacent signals caused by parasitic oscillations at the antenna
! 9; SUBELEMENT 3AI--Antennas and Feed Lines (3 Exam Questions)
3AI-1-1.1
#What antenna type best strengthens signals from a particular direction while attenuating those from other directions?
A beam antenna
An isotropic antenna
A monopole antenna
A vertical antenna
3AI-1-1.2
#What is a directional antenna?
An antenna that radiates more strongly in some directions than others
An antenna whose parasitic elements are all constructed to be directors
An antenna that radiates in direct line-of-sight propagation, but not skywave or skip propagation
An antenna permanently mounted so as to radiate in only one direction
3AI-1-1.3
#What is a Yagi antenna?
Half-wavelength linear driven element(s) with parasitically excited parallel linear elements
Half-wavelength elements stacked vertically and excited in phase
Quarter-wavelength elements arranged horizontally and excited out of phase
Quarter-wavelength, triangular loop elements
3AI-1-1.4
#What is the general configuration of the radiating elements of a horizontally polarized Yagi?
Two or more straight, parallel elements arranged in the same horizontal plane
Vertically stacked square or circular loops arranged in parallel horizontal planes
Two or more wire loops arranged in parallel vertical planes
A vertical radiator arranged in the center of an effective RF ground plane
3AI-1-1.5
#What type of parasitic beam antenna uses two or more straight metal-tubing elements arranged physically parallel to each other?
A Yagi antenna
A delta loop antenna
A quad antenna
A Zepp antenna
3AI-1-1.6
#How many directly driven elements does a Yagi antenna have?
One
None; they are all parasitic
Two
All elements are directly driven
3AI-1-1.7
#What is a parasitic beam antenna?
An antenna where the director and reflector elements receive their RF excitation by induction or radiation from the driven element
An antenna where wave traps are used to assure magnetic coupling among the elements
An antenna where all elements are driven by direct connection to the feed line
An antenna where the driven element receives its RF excitation by induction or radiation from the directors
3AI-1-2.1
#What is a cubical quad antenna?
Two or more parallel four-sided wire loops, each approximately one electrical wavelength long
Four parallel metal tubes, each approximately 1/2 electrical wavelength long
A vertical conductor 1/4 electrical wavelength high, fed at the bottom
A center-fed wire 1/2 electrical wavelength long
3AI-1-2.2
#What kind of antenna array is composed of a square full-wave closed loop driven element with parallel parasitic element(s)?
Cubical quad
Delta loop
Dual rhombic
Stacked Yagi
3AI-1-2.3
#Approximately how long is one side of the driven element of a cubical quad antenna?
1/4 electrical wavelength
2 electrical wavelengths
1 electrical wavelength
1/2 electrical wavelength
3AI-1-2.4
#Approximately how long is the wire in the driven element of a cubical quad antenna?
1 electrical wavelength
1/4 electrical wavelength
1/2 electrical wavelength
2 electrical wavelengths
3AI-1-3.1
#What is a delta loop antenna?
A variation of the cubical quad antenna, with triangular elements
A large copper ring, used in direction finding
An antenna system composed of three vertical antennas, arranged in a triangular shape
An antenna made from several coils of wire on an insulating form
3AI-2-1.1
#To what does the term horizontal as applied to wave polarization refer?
The electric lines of force in the radio wave are parallel to the earth's surface
The magnetic lines of force in the radio wave are parallel to the earth's surface
The electric lines of force in the radio wave are perpendicular to the earth's surface
The radio wave will leave the antenna and radiate horizontally to the destination
3AI-2-1.2
#What electromagnetic wave polarization does a cubical quad antenna have when the feed point is in the center of a horizontal side?
Horizontal
Circular
Helical
Vertical
3AI-2-1.3
#What electromagnetic wave polarization does a cubical quad antenna have when all sides are at 45 degrees to the earth's surface and the feed point is at the bottom corner?
Horizontal
Circular
Helical
Vertical
3AI-2-2.1
#What is the polarization of electromagnetic waves radiated from a half-wavelength antenna perpendicular to the earth's surface?
Vertically polarized waves
Circularly polarized waves
Horizontally polarized waves
Parabolically polarized waves
3AI-2-2.2
#What is the electromagnetic wave polarization of most man-made electrical noise radiation in the HF-VHF spectrum?
Vertical
Horizontal
Left-hand circular
Right-hand circular
3AI-2-2.3
#To what does the term vertical as applied to wave polarization refer?
The electric lines of force in the radio wave are perpendicular to the earth's surface
The electric lines of force in the radio wave are parallel to the earth's surface
The magnetic lines of force in the radio wave are perpendicular to the earth's surface
The radio wave will leave the antenna and radiate vertically into the ionosphere
3AI-2-2.4
#What electromagnetic wave polarization does a cubical quad antenna have when the feed point is in the center of a vertical side?
Vertical
Circular
Helical
Horizontal
3AI-2-2.5
#What electromagnetic wave polarization does a cubical quad antenna have when all sides are at 45 degrees to the earth's surface and the feed point is at a side corner?
Vertical
Circular
Helical
Horizontal
3AI-3-1.1
#What is meant by the term standing wave ratio?
The ratio of maximum to minimum voltages on a feed line
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
3AI-3-1.2
#What is standing wave ratio a measure of?
The ratio of maximum to minimum voltage on a feed line
The ratio of maximum to minimum reactance on a feed line
The ratio of maximum to minimum resistance on a feed line
The ratio of maximum to minimum sidebands on a feed line
3AI-3-2.1
#What is meant by the term forward power?
The power traveling from the transmitter to the antenna
The power radiated from the front of a directional antenna
The power produced during the positive half of the RF cycle
The power used to drive a linear amplifier
3AI-3-2.2
#What is meant by the term reflected power?
The power returned to the transmitter from the antenna
The power radiated from the back of a directional antenna
The power produced during the negative half of the RF cycle
Power reflected to the transmitter site by buildings and trees
3AI-3-3.1
#What happens to the power loss in an unbalanced feed line as the standing wave ratio increases?
It increases
It is unpredictable
It becomes nonexistent
It decreases
3AI-3-3.2
#What type of feed line is best suited to operating at a high standing wave ratio?
Parallel open-wire line
Coaxial cable
Flat ribbon "twin lead"
Twisted pair
3AI-3-3.3
#What happens to RF energy not delivered to the antenna by a lossy coaxial cable?
Some of it is dissipated as heat in the conductors and dielectric
It is radiated by the feed line
It is returned to the transmitter's chassis ground
It is canceled because of the voltage ratio of forward power to reflected power in the feed line
3AI-4-1.1
#What is a balanced line?
Feed line with neither conductor connected to ground
Feed line with one conductor connected to ground
Feed line with both conductors connected to ground to balance out harmonics
Feed line with the outer conductor connected to ground at even intervals
3AI-4-1.2
#What is an unbalanced line?
Feed line with one conductor connected to ground
Feed line with neither conductor connected to ground
Feed line with both conductors connected to ground to suppress harmonics
Feed line with the outer conductor connected to ground at uneven intervals
3AI-4-2.1
#What is a balanced antenna?
An antenna (or a driven element in an array) that is symmetrical about the feed point
A symmetrical antenna with one side of the feed point connected to ground
A symmetrical antenna with both sides of the feed point connected to ground, to balance out harmonics
An antenna designed to be mounted in the center
3AI-4-2.2
#What is an unbalanced antenna?
An antenna (or a driven element in an array) that is not symmetrical about the feed point
A symmetrical antenna, having neither half connected to ground
An antenna (or a driven element in an array) that is symmetrical about the feed point
A symmetrical antenna with both halves coupled to ground at uneven intervals
3AI-4-3.1
#What device can be installed on a balanced antenna so that it can be fed through a coaxial cable?
A balun
A loading coil
A triaxial transformer
A wavetrap
3AI-4-3.2
#What is a balun?
A device that may be installed on a balanced antenna so that it may be fed with unbalanced feed line
A device that can be used to convert an antenna designed to be fed at the center so that it may be fed at one end
A device that can be installed on an antenna to produce horizontally polarized or vertically polarized waves
A device used to allow an antenna to operate on more than one band
3AI-5-1.1
#List the following types of feed line in order of increasing attenuation per 100 feet of line (list the line with the lowest attenuation first): RG-8, RG-58, RG-174 and open-wire line.
open-wire line, RG-8, RG-58, RG-174
RG-174, RG-58, RG-8, open-wire line
RG-8, open-wire line, RG-58, RG-174
open-wire line, RG-174, RG-58, RG-8
3AI-5-1.2
#You have installed a tower 150 feet from your radio shack, and have a 6-meter Yagi antenna on top. Which of the following feed lines should you choose to feed this antenna: RG-8, RG-58, RG-59 or RG-174?
RG-8
RG-58
RG-59
RG-174
3AI-5-2.1
#You have a 200-foot coil of RG-58 coaxial cable attached to your antenna, but the antenna is only 50 feet from your radio. To minimize feed-line loss, what should you do with the excess cable?
Cut off the excess cable
Cut off the excess cable to an even number of wavelengths long
Cut off the excess cable to an odd number of wavelengths long
Roll the excess cable into a coil a tenth of a wavelength in diameter
3AI-5-2.2
#How does feed-line length affect signal loss?
As length increases, signal loss increases
The length has no effect on signal loss
As length decreases, signal loss increases
The length is inversely proportional to signal loss
3AI-5-3.1
#What is the general relationship between frequencies passing through a feed line and the losses in the feed line?
Loss increases with increasing frequency
Loss is independent of frequency
Loss decreases with increasing frequency
There is no predictable relationship
3AI-5-3.2
#As the operating frequency decreases, what happens to conductor losses in a feed line?
The losses decrease
The losses increase
The losses remain the same
The losses become infinite
3AI-5-3.3
#As the operating frequency increases, what happens to conductor losses in a feed line?
The losses increase
The losses decrease
The losses remain the same
The losses decrease to zero
3AI-6-1.1
#You are using open-wire feed line in your amateur station. Why should you ensure that no one can come in contact with the feed line while you are transmitting?
Because high RF voltages can be present on open-wire feed line
Because contact with the feed line while transmitting will cause a short circuit, probably damaging your transmitter
Because the wire is so small they may break it
Because contact with the feed line while transmitting will cause parasitic radiation
3AI-6-2.1
#How can you minimize exposure to radio frequency energy from your transmitting antennas?
Mount the antennas where no one can come near them
