HAM Radio 3.2/Ham Radio Version 3.2 (Chestnut CD-ROMs)(1993).ISO/exam/exam10/3a.exm

Text File | 1991-12-10 | 94KB | 2,741 lines

74
'SUBELEMENT 3AA -- Commission's Rules (5 questions)
5
3AA-1.1


What is the CONTROL POINT of an amateur station?

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 operating desk
The control point
The station location
The manual control location
3AA-2.2

Which operator licenses authorize privileges on 52.525 MHz?

Extra, Advanced only
Extra, Advanced, General only
Extra, Advanced, General, Technician only
Extra, Advanced, Technician, Novice
3AA-2.3

Which operator licenses authorize privileges on 146.52?

Extra, Advanced, General, Technician, Novice
Extra, Advanced, General, Technician only
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 246.0 MHz?

Extra, Advanced, General, Technician, Novice
Extra, Advanced, General, Technician only
Extra, Advanced, General only
Extra, Advanced only
3AA-3.1


How often do amateur 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?

50.0-54.0 MHz only
50.1-54.0 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?

CW
RTTY
MCW
Phone
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?

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 also be causing interference to the other
station and that would be a violation of FCC rules
3AA-5.2

What is the basic principle of frequency sharing between two stations
allocated to a primary service within a frequency band, each in a different
ITU Region or Subregion?

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 of license
The station with a lower power output must yield the frequency to the
station with a higher output power
Both stations have an equal right to operate on the frequency
Stations in ITU Regions 1 and 3 must yield the frequency to stations
in ITU Region 2
3AA-5.3

What must the control operator do while a third-party is participating in
radiocommunications?

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 insure that no interference is taking
place
If a radio control link is available, the control operator may leave
the room
The control operator must continuously monitor and supervise the
radiocommunication to insure compliance with the rules
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?

By measuring the final amplifier supply voltage inside the transmitter

or amplifier
By measuring the final amplifier supply current inside the transmitter
or amplifier
At the antenna terminals of 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?

Peek transmitter power
Peak output power
Average radio-frequency power
Peak envelope power
3AA-6-2.1

Notwithstanding the numerical limits of the FCC Rules, how much transmitting
power shall be used by an amateur station?

There is no regulation other than the numerical limits
The minimum power required to achieve S9 signal reports
The minimum power necessary to carry out the desired communication
The maximum power available, so long as it is under the legal limit
3AA-6-3.1

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
3AA-6-4.1

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
3AA-7-1.1

What is the maximum sending speed permitted for a RTTY transmission between
28 and 50 MHz

56 kilobauds
19.6 kilobauds
1200 bauds
300 bauds
3AA-7-1.2

What is the maximum sending speed permitted for a RTTY transmission between
50 and 220 MHz?

56 kilobauds
19.6 kilobauds
1200 bauds
300 bauds
3AA-7-1.3

What is the maximum sending speed permitted for a RTTY transmission above
220 MHz?

300 bauds
1200 bauds
19.6 kilobauds
56 kilobauds
3AA-7-2.1

What is the maximum frequency shift permitted for RTTY when transmitted
below 50 MHz?

100 Hz
500 Hz
1000 Hz
5000 Hz
3AA-7-2.2

What is the maximum frequency shift permitted for RTTY when transmitted
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
The FCC Rules do not specify a maximum frequency shift above 50 MHz
5000 Hz or the sending speed, in bauds, whichever is greater
3AA-7-3.1


What is the authorized bandwidth of a RTTY, data or multiplexed emission
using a specified digital code within the frequency range of 50 to 220 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 a RTTY, data or multiplexed emission
using an unspecified digital code within the frequency range of 250 to 450 MHz?

50 kHz
150 kHz
200 kHz
100 kHz
3AA-7-3.3

What is the authorized bandwidth of a RTTY, data or multiplexed emission
using an unspecified digital code within the 420 to 450 MHz amateur band?

50 kHz
200 kHz
300 kHz
100 kHz
3AA-8-1.1

How must the control operator who has a Novice license and a Certificate of
Successful Completion of Examination for Technician privileges identify the
station when transmitting on 146.34 MHz?

The new Technician may not operate on 146.34 until his or her new license

arrives
The licensee gives his or her call sign, followed by any suitable word
that identifies the slant mark and the identifier "KT"
No special form of identification is needed
The licensee gives his or her call sign followed and states the location
of the VE examination where he of she obtained the certificate of
successful completion
3AA-8-2.1

Which language(s) must be used when making the station identification by
telephony?

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
English must be used for identification
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 speech compressor
Q signals
A recognized phonetic alphabet
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 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
Station call sign and operating times
Station call sign and the station licensee's name and address
Station call sign, class of license, and operating times
3AA-10.3

What are the station identification requirements of an amateur station
transmitting signals to control a model craft?

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
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
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 in the operator's possession
It must be affixed to the transmitter
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 the 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 the frequency coordinator has coordinated (recommends) the
operation of both stations, who is primarily responsible for resolving the
interference?

The licensee of the repeater which has been coordinated for the longest

period of time
Both repeater licensees
The licensee of the repeater which has been coordinated most recently
The frequency coordinator
3AA-11-1.3


If an amateur repeater is causing harmful interference to another amateur
repeater and the 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 declaration of war is received from Congress
When the maximum usable frequency goes above 28 MHz
When communications facilities in Washington, DC, are disrupted
When a disaster disrupts normal communications systems in a particular area
3AA-11-2.2


By what means should a request for a declaration of 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 be initiated?

Declaration 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
Any special conditions and special rules to be observed during the
communication 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 commercial businesses 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?

Auxiliary station
Repeater station
Beacon 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?

Beacon station
Space station
Official bulletin station
RACES station
3AA-12.4

What type of radio signals may be directly retransmitted by an amateur radio
station?

AM radio station
Police or fire department radio station
NOAA weather station
US Government communications between space shuttle and associated Earth
stations with prior approval from the National Aeronautics and Space
Administration (NASA)
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 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 National Aeronautics and
Space Administration (NASA)
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?

All types of one-way communications by amateurs are considered by the FCC

as 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
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?

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
Transmission of music
3AA-13.3

What kinds of one-way information bulletins may be transmitted by amateur
stations?

NOAA weather bulletins
Commuter traffic reports from local radio stations
Regularly scheduled announcements concerning amateur radio equipment for
sale or trade
Messages directed only to amateur operators consisting solely of subject
matter of direct interest to the amateur service
3AA-13.4

What types of one-way amateur communications may be transmitted by an amateur
station?

Beacon operation, radio control, practice code, retransmission of other

services
Beacon operation, radio control, transmitting an unmodulated carrier, NOAA
weather bulletins
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, 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
communications transmitted by an amateur station?

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
No compensation may be accepted
3AA-14.2

What types of business communications, if any, may be transmitted by an amateur
station on behalf of a third party?

The FCC rules specifically prohibit communications with a business for any

reason
Business communications involving the sale of amateur radio equipment
Communications to a business may be provided during an emergency as
provided by the FCC rules
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?

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
Yes, when communicating with a person in a country with which the US shares
a third-party agreement
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 insure compliance with the rules only if
contacts are made with countries with which the US has no third-party
communications agreement
A control operator must be present and continuously monitor and supervise
the radio communications to insure 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 communications to insure compliance with the rules. Also if
contacts are made on frequencies below 30 MHz, the control operator must
transmit the call signs of both stations
3AA-15.2

Where must the control operator be situated when a third party is
participating in radio communications from an amateur station?

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
The control operator must be present at the control point
If the third party holds a valid radiotelegraph license issued by the FCC,
no supervision is necessary
3AA-15.2

What must the control operator do while a third party is participating in
third party radio communications?

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 insure that no interference is taking
place
If a radio control link is available the control operator may leave the
room
The control operator must continually monitor and supervise the third
party's participation
3AA-15.4

In an exchange of international third-party communications, when is the
station identification required?

Only at the beginning of the communication
At the end of each exchange of 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 permitted when they do not cause interference to any

other radio communication or signal
Obscene words are prohibited in Amateur Radio transmissions
Obscene words are permitted when they are not transmitted 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 permitted when they do not cause interference to any

other radio communication or signal
Indecent words are permitted when they are not transmitted 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
Indecent words are prohibited in Amateur Radio transmissions
3AA-16.3

Under what circumstances, if any, may an amateur station transmit radio
communications containing profane words?

Profane words are permitted when they are not transmitted 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 prohibited in Amateur Radio transmissions
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

6 meters
2 meters
23 centimeters
70 centimeters
'SUBELEMENT 3AB -- Operating Procedures (3 questions)
3
3AB-1.1


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.."?

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
3AB-1.3

What is the meaning of: "Your report is five nine plus 20dB..."?

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
3AB-2-1.1

How should a contact be initiated through a station in repeater operation?

Say "breaker, breaker 79."
Call the desired station and then identify your own station
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 check the SWR of the repeater
To reach for pencil and paper for third party traffic
To listen for any hams wanting to break in
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 ongoing QSO through a station in
repeater operation?

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
Send your call sign during a break between transmissions
3AB-2-1.5

What is the purpose of repeater operation?

To cut your power bill by using someone's higher power system
To enable mobile and low power stations to extend their usable range
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 battery supply has run out
The repeater's transmission time limit has expired during a single
transmission
The warranty on the repeater duplexer has expired
The repeater is in need of repairs
3AB-2-1.7

During the commuter rush hours, which types of operation should relinquish the
use of the repeater?

Mobile operators
Low power stations
Highway traffic information nets
Third-party traffic nets
3AB-2-2.1

Why should simplex be used where possible instead of using a station in
repeater operation?

Farther distances can be reached
To avoid long distance toll charges
To avoid tying up the repeater unnecessarily
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?

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 the repeater's frequency is not practical
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?

1 MHz
1.6 MHz
170 Hz
0.6 MHz
3AB-2-3.2

What is the usual input/output frequency separation for stations in repeater
operation in the 70-centimeter band?

1.6 MHz
5 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

1000 kHz
600 kHz
1600 kHz
1.6 GHz
3AB-2-4.1

What is a REPEATER FREQUENCY COORDINATOR?

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
A person or group that recommends frequency pairs for repeater usage
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?

Choose an unoccupied frequency
Use a dummy antenna
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?

QRV?
QRU?
QRL?
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 MAYDAY
Transmit QRRR
Transmit QRZ
Transmit SOS
3AB-5-1.1

What is one requirement you must meet before you can participate in RACES
drills?

You must be registered with ARRL
You must be registered with a local racing organization
You must be registered with the responsible civil defense 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?

Eight hours
One hour
As many 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 emergency messages
As amateur traffic
As official government messages
As drill or test 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?

Emergency traffic
Tactical traffic
Formal message traffic
Health and welfare 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 take your station mobile
So that you can provide communications in an emergency
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 a part of a portable HF
amateur station that could be set up in case of a communications emergency?

A three-element quad
A three-element Yagi
A dipole
A parabolic dish
'SUBELEMENT 3AC -- Radio-Wave Propagation (3 questions)
3
3AC-1-1.1


What is the IONOSPHERE?

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 which makes long distance
radiocommunications possible as a result of bending of radio waves?

Troposphere
Stratosphere
Magnetosphere
Ionosphere
3AC-1-1.3

What type of solar radiation is most responsible for ionization in the outer
atmosphere?

Thermal
Ionized particle
Ultraviolet
Microwave
3AC-1-2.1


Which ionospheric layer limits daytime radiocommunications 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 A layer
The D 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 D layer
The E layer
The F1 layer
The F2 layer
3AC-1-4.1

Which layer of the ionosphere is mainly responsible for long distance sky wave
radiocommunication?

D layer
E layer
F1 layer
F2 layer
3AC-1-4.2

What are the two distinct sublayers of the F layer during the daytime?

Troposphere and stratosphere
F1 and F2
Electrostatic and electromagnetic
D and E
3AC-1-4.3

Which two daytime ionospheric layers combine into one layer at night?

E and F1
D and E
E1 and E2
F1 and F2
3AC-2.1

Which layer of the ionosphere is most responsible for absorption of radio
signals during daylight hours?

The E layer
The F1 layer
The F2 layer
The D layer
3AC-2.2

When is ionospheric absorption most pronounced?

When Tropospheric ducting occurs
When radio waves enter the D Layer at low angles
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?

A lack of D Layer ionization
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?

Atmospheric attenuation is at a maximum
Ionization is at a maximum
The E layer is above the F layer
Ionization is at a minimum
3AC-3.2

At what time of day does maximum ionization of the ionosphere occur?

Dusk
Midnight
Midday
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?

Dawn
Midday
Dusk
Midnight
3AC-4.1

What is the highest radio frequency that will be refracted back to Earth
called?

Lowest usable frequency
Optimum working frequency
Ultra high frequency
Critical frequency
3AC-4.2

What causes the MAXIMUM USABLE FREQUENCY to vary?

Variations in the temperature of the air at ionospheric levels
Upper-atmospheric wind patterns
The amount of ultraviolet and other types of radiation received from
the Sun
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?

Ground wave propagation
Sky wave propagation
Scatter-mode 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?

Troposheric ducting
Line-of-sight propagation
Backscatter propagation
Ionospheric ducting 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 sky wave
By direct wave
By plane wave
By geometric wave
3AC-7.1

Ducting occurs in which region of the atmosphere?

F2
Ionosphere
Troposphere
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 very low pressure area
An aurora to the north
Lightning between the transmitting and receiving station
A temperature inversion
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?

Presence of a maritime polar air mass
A widespread temperature inversion
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?

LF
MF
HF
VHF
'SUBELEMENT 3AD -- Amateur Radio Practice (4 questions)
4
3AD-1-1.1

Where should the green wire in an AC line cord be attached in a power supply?

To the fuse
To the "hot" side of the power switch
To the chassis
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 filter capacitor
To the DC ground
To the chassis
To the fuse
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 that has a fuse
To the side of the transformer's primary winding without 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 prevent galvanic action
To indicate correct wiring polarity
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?

Inside the cabinet, to interrupt power when the cabinet is opened
On the rear panel of the high-voltage supply
Where it can be seen and reached easily
This supply should not be switch operated
3AD-2-1.1

How is a voltmeter 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-2-2.1

How can the range of a voltmeter be extended?

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
3AD-3-1.1


How is a 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 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
3AD-4.1

What is a MULTIMETER?

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
An instrument capable of reading voltage, current and resistance
3AD-5-1.1


Where in the antenna transmission line should a peak-reading wattmeter be
attached to determine the transmitter power output?

At the transmitter output
At the antenna feedpoint
One-half wavelength from the antenna feedpoint
One-quarter wavelength from the transmitter output
3AD-5-1.2

For the most accurate readings of a transmitter output power, where should the
RF Wattmeter be inserted?

The wattmeter should be inserted and the output measured one-quarter

wavelength from the antenna feedpoint
The wattmeter should be inserted and the output measured one-half
wavelength from the antenna feedpoint
The wattmeter should be inserted and the output power measured at the
transmitter antenna jack
The wattmeter should be inserted and the output power measured at the
Transmatch output
3AD-5-1.3

At what impedance are RF wattmeters usually designed to operate?

25 Ohms
50 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?

10 watts
80 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?

80 watts
88 watts
92 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 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 product detector
A receiver incremental tuning circuit
A balanced modulator
A crystal calibrator
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 wavemeter
A reflectometer
A signal generator
A balanced modulator
3AD-7.2

What is an RF signal generator commonly used for?

Measuring RF signal amplitude
Aligning receiver tuned circuits
Adjusting the transmitter impedance-matching network
Measuring transmission line impedance
3AD-8-1.1

What is a REFLECTOMETER?

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
An instrument used to measure standing wave ratio
3AD-8-1.2

What is the device that can indicate an impedance mismatch in an antenna
system?

A field strength meter
A set of lecher wires
A wavemeter
A reflectometer
3AD-8-2.1


For best accuracy when adjusting the impedance match between an antenna and
feedline, where should the match-indicating device be inserted?

At the antenna feedpoint
At the transmitter
At the midpoint of the feedline
Anywhere along the feedline
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 any quarter-wavelength interval along the transmission line
At the receiver end
At the antenna 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 multimeter
A set of Litz wires
A receiver
A dummy antenna
3AD-9.2

What is a DUMMY ANTENNA?

An isotropic radiator
A nonradiating load for a transmitter
An antenna used as a reference for gain measurements
The image of an antenna, located below ground
3AD-9.3

Of what material may a dummy antenna be made?

A wire-wound resistor
A diode and resistor combination
A noninductive resistor
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 Transmatch
A dummy antenna
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 single-sideband
phone transmitter 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 sideband suppression
A meter used to measure spurious emissions from a transmitter
A meter used to measure relative signal strength in a receiver
A meter used to measure solar flux
3AD-10.2


A meter that is used to generate 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 causes radiation poisoning
It heats the tissue
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 Institute of Electrical and Electronics Engineers
The American Radio Relay League
The Environmental Protection Agency
The American National Standards Institute
3AD-11-2.2

What is the purpose of the ANSI RF protection guide?

It protects you from unscrupulous radio dealers
It sets RF exposure limits under certain circumstances
It sets transmitter power limits
It sets antenna height requirements
3AD-11-2.3

The American Nation 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)?

3 to 30 MHz
30 to 300 MHz
300 to 3000 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?

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
Human body lengths are close to whole-body resonance in that range
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?

125 milliwatts
7 watts
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?

Remove all amplifier shielding to ensure maximum cooling
Connect a noise bridge to eliminate any interference
Be certain all amplifier shielding is fastened in place
Be certain no antenna is attached so that you will not cause any
interference
'SUBELEMENT 3AE -- Electrical Principals (2 questions)
2
3AE-1-1.1

What is meant by the term RESISTANCE?

The opposition to the flow of current in an electrical circuit

containing inductance
The opposition to the flow of current in an electrical circuit
containing capacitance
The opposition to the flow of current in an electrical circuit
containing reactance
The opposition to the flow of current in an electrical circuit that
does not contain 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?

Volt
Ampere
Joule
Ohm
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 half the value of either resistor
The total resistance is twice 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 square of the sum of all the individual

resistors
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
The total resistance is the sum of all the individual resistance 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 twice the value of either resistor
The total resistance is half 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 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 less than the smallest-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, 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
A mathematical relationship between resistance, current and applied
voltage 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?

0.02 ohms
3 ohms
48 ohms
480 ohms
3AE-2.4

The product of the current and what force gives the electrical power in a
circuit?

Magnetomotive force
Centripetal force
Electrochemical force
Electromotive force
3AE-2.5

What is the input resistance of a load when a 12-volt battery supplies 0.15
amperes to it?

8 Ohms
80 Ohms
100 Ohms
800 Ohms
3AE-2.6

When 120 Volts is measured across a 4700-ohm Resistor, how much current is
flowing through it?

39 Amperes
3.9 Amperes
0.26 Amperes
0.026 Amperes
3AE-2.7

When 120 Volts is measured across a 47000-ohm Resistor, how much current is
flowing through it?

392 A
39.2 A
26 mA
2.6 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?

Admittance
Capacitance
Inductance
Resistance
3AE-3-2.1

What is the basic unit of Inductance?

Coulomb
Farad
Henry
Ohm
3AE-3-2.2

What is a HENRY?

The basic unit of admittance
The basic unit of capacitance
The basic unit of inductance
The basic unit of resistance
3AE-3-2.3

What is a MICROHENRY?

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^(-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^(-12) Henrys
A basic unit of inductance equal to 10^(-6) Henrys
A basic unit of inductance equal to 10^(-3) 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 half the value of either inductor
The total inductance is twice 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 average of all the individual

inductances
The total inductance is equal to less than the value of the smallest
inductance
The total inductance is equal to the sum of all the individual inductances
No comparisons 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 equal to the sum of the inductances in the

combination
The total inductance is less than the smallest inductance value in the
combination
The total inductance is equal to the average of the inductances in the
combination
No comparisons 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^(-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-4-2.3


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?

A basic unit of resistance
A basic unit of capacitance
A basic unit of inductance
A 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 twice the value of either capacitor
The total capacitance is equal to the value of either capacitor
The total capacitance is half 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 equal to the sum of all the capacitances in the

combination
The total capacitance is less than the smallest value of capacitance
The total capacitance is equal to the average of the capacitances in the
combination
No comparisons 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 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 capacitance in the
combination
The total capacitance is equal to the average of the capacitances in the
combination
No comparisons can be made without knowing the exact capacitances
'SUBELEMENT 3AF -- Circuit Components (2 questions)
2
3AF-1-1.1

What are the four common types of resistor construction?

Carbon-film, metal-film, micro-film and wire-film
Carbon-composition, carbon-film, metal-film and wire-wound
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 store an electric charge
To store a magnetic field
To match a high-impedance source to a low-impedance load
To limit the current in an electric circuit
3AF-1-2.2

What is a variable resistor?

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 with a slide or contact that makes the resistance variable
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 a wavemeter
By using the resistor's color code
By using Thevenin's theorem for resistors
By using the Baudot code
3AF-1-3.3

What does the 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 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 working voltage rating of each resistor
The composition of each resistor
The tolerance 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 obtain better response
To obtain a higher current gain
To increase power dissipation capability
To produce a greater parallel impedance
3AF-1-5.1

What is the symbol used to represent a fixed resistor on schematic diagrams?
(See manual, question 3AF-1-5.1)

Selection A
Selection B
Selection C
Selection D
3AF-1-5.2

What is the symbol used to represent a variable resistor on schematic
diagrams?  (See manual, question 3AF-1-5.2)

Selection A
Selection B
Selection C
Selection D
3AF-2-1.1

What is an inductor core?

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
The central portion of a coil; may be made from air, iron, brass or other
material
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 semiconductor in a conducting shield
Two parallel conducting plates
A straight wire conductor mounted inside a Faraday shield
A coil of conducting wire
3AF-2-1.4

For radio frequency power applications, which type of Inductor has the least
amount of loss?

Magnetic wire
Iron core
Air-core
Slug-tuned
3AF-2-2.1

What is an inductor?

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
An electronic component that stores energy in a magnetic field
3AF-2-2.2

What are the electrical properties of an inductor?

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 electromagnetically and opposes a change in
current
An inductor stores a charge electromagnetically 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 and

whether the coil is mounted horizontally of 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
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
3AF-2-3.2

What can be done to raise the inductance of a 5-microhenry air-core coil to a
5-millihenry coil of the same physical dimensions?

The coil can be wound on a non-conducting tube
The coil can be wound on an iron core
Both ends of the coil can be brought around to form the shape of a
doughnut, or toroid
The coil must be made of a heavier-gauge wire
3AF-2-3.3


As an iron core is inserted in a coil, what happens to its 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 its inductance?

It increases
It decreases
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?  (See manual, question 3AF-2-4.1)

Selection A
Selection B
Selection C
Selection D
3AF-2-4.2

What is the symbol used to represent an iron core inductor on schematic
diagrams?  (See manual, question 3AF-2-4.2)

Selection A
Selection B
Selection C
Selection D
3AF-2-4.3

What is the symbol used to represent an inductor wound over a toroidal core
on schematic diagrams?  (See manual, question 3AF-2-4.3)

Selection A
Selection B
Selection C
Selection D
3AF-3-1.1

What is a capacitor dielectric?

The insulating material used for the plates
The conducting material used between the plates
The ferrite material that the plates are mounted on
The insulating material between the plates
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 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
A capacitor whose value varies with applied voltage
3AF-3-1.4

What is a PAPER CAPACITOR?

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 plates are separated by a layer of paper
A capacitor whose dielectric is formed on one set of plate through
electrochemical action
3AF-3-2.1

What is a capacitor?

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 converts power into heat
3AF-3-2.2

What are the electrical properties of a capacitor?

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
A capacitor stores a charge electrostacically 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 volts and amperes
In microfarads and volts
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 number of
plates and the type of material used for the protective coating
3AF-3-3.2

As the plate area of a capacitor increases, what happens to its capacitance?

Decreases
Increases
Stays the same
Becomes voltage dependent
3AF-3-3.3

As the plate spacing of a capacitor is increased, what happens to its
capacitance?

Increases
Stays the same
Becomes voltage dependent
Decreases
3AF-3-4.1

What is the symbol used to represent an electrolytic capacitor on schematic
diagrams?  (See manual, question 3AF-3-4.1)

Selection A
Selection B
Selection C
Selection D
3AF-3-4.2


What is the symbol used to represent a variable capacitor on schematic
diagrams?  (See manual, question 3AF-3-4.2)

Selection A
Selection B
Selection C
Selection D
'SUBELEMENT 3AG -- Practical Circuits (1 question)
1
3AG-1-1.1


Which frequencies are attenuated by a Low Pass Filter?

Those above its cut-off frequency
Those within its cut-off frequency
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 band-pass filter
A high-pass filter
An input Filter
A low-pass filter
3AG-1-2.1

Why does virtually every modern transmitter have a built-in low-pass filter
connected to its output?

To attenuate frequencies below its cutoff point
To attenuate low frequency interference to other amateurs
To attenuate excess harmonic radiation
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 on the television receiver
Install a low-pass filter at the transmitter output
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 band-pass filter
A high-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 transmitter terminals
Install a high-pass filter at the television antenna 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
All frequencies below a specified frequency
All frequencies above the upper limit of the band in question
All frequencies above a specified frequency and below a lower specified
frequency
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
frequency
3AG-4-1.1

What circuit is likely to be found in all types of receivers?

An audio filter
A beat frequency oscillator
A detector
An RF amplifier
frequency
3AG-4-1.2

What type of transmitter does this block diagram represent?  (See manual,
question 3AG-4-1.2)

A simple packet-radio transmitter
A simple crystal controlled transmitter
A single-sideband transmitter
A VFO-controlled transmitter
3AG-4-1.3

What type of transmitter does this block diagram represent?  (See manual,
question 3AG-4-1.3)

A simple packet-radio transmitter
A simple crystal controlled transmitter
A single-sideband transmitter
A VFO-controlled transmitter
3AG-4-1.4

What is the unlabeled block (?) in this diagram?  (See manual, question
3AG-4-1.4)

An AGC circuit
A detector
A power supply
A VFO circuit
3AG-4-1.5

What type of device does this block diagram represent?  (See manual, question
3AG-4-1.5)

A double-conversion receiver
A variable-frequency oscillator
A simple superheterodyne receiver
A simple CW transmitter
3AG-4-2.1

What type of device does this block diagram represent?  (See manual, question
3AG-4-2.1)

A double-conversion receiver
A variable-frequency oscillator
A simple superheterodyne receiver
A simple FM receiver
3AG-4-2.2

What is the unlabeled block (?) in this diagram?  (See manual, question
3AG-4-2.2)

A band-pass filter
A crystal oscillator
A reactance modulator
A rectifier modulator
'SUBELEMENT 3AH -- Signals and Emissions (2 questions)
2
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?

AM phone
Test
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?

Test
AM phone
CW
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?

Amplitude-keyed telegraphy
Frequency-shift-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?

RTTY
MCW
CW
Single-sideband phone
3AH-2-4.2

What is tone-modulated international Morse code telegraphy?

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
Telegraphy produced by an on/off keyed audio tone fed into an FM
transmitter
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 nature of the signal modulating the main carrier
The type of modulation of the main carrier
The speed of a radiotelegraph transmission
The type of the information to be transmitted
3AH-2-5.3

What emission type results when an on-off keyed audio oscillator is connected
to the microphone jack of an FM phone transmitter?

SS
RTTY
MCW
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?

Use your telegraph key to interrupt the carrier wave
Modulate your FM transmitter with audio tones from a terminal node
controller
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 hand-held transceiver?

Amplitude modulated phone
Code telegraphy
An unmodulated carrier wave
Frequency modulated phone
3AH-2-7.2

What emission type do most 2-meter FM transmitters transmit?

Interrupted pure carrier wave
Frequency modulated phone
Single-sideband voice emissions
Amplitude modulated carrier waves
3AH-2-8.1

What is the most important consideration when installing a 10-meter dipole
inside an attic?

It will exhibit a low angle of radiation
The dipole must always be run horizontally polarized
It will be covered by an insulation to prevent fire and high enough to
prevent being accidentally touched during transmission
Dipoles usually don't work in attics
3AH-2-8.2

Which type of transmitter will produce a frequency modulated carrier wave?

A CW transmitter
An amplitude modulation transmitter
A single-sideband transmitter
A phase modulated 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 AF carrier
An RF 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 intelligibility under weak-signal conditions
Better rejection of multipath distortion than the AM modes
Good audio fidelity and high signal-to-noise ratio above a certain signal
amplitude threshold
Better carrier frequency stability than the AM modes
3AH-5.1

What emission is produced by a transmitter using a reactance modulator?

CW
Unmodulated carrier
Single-sideband, suppressed-carrier phone
Phase modulated phone
3AH-5.2

What other emission does phase modulation most resemble?

Amplitude modulation
Pulse modulation
Frequency 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 ham bands are wider than others
Because different bandwidths help increase the receiver sensitivity
Because different bandwidths improve S-meter readings
Because some emission types occupy a wider frequency range than others
3AH-6-1.2

List the following signals in order of increasing bandwidth (narrowest signal
first): CW, FM voice, RTTY, SSB voice.

RTTY, CW, SSB voice, FM voice
CW, FM voice, RTTY, SSB voice
CW, RTTY, SSB voice, FM voice
CW, SSB voice, RTTY, FM voice
3AH-7-1.1

To what is the deviation of an FM transmission proportional?

Only the frequency of the audio modulating signal
The frequency and amplitude of the audio modulating frequency
The duty cycle of the audio modulating signal
Only the amplitude of the audio modulating signal
3AH-7-2.1

What is the result of overdeviation in an FM transmitter?

Increased transmitter power consumption
Out of channel emissions (splatter)
Increased transmitter range
Inadequate carrier suppression
3AH-7-2.2

What is SPLATTER?

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 overmodulation of a
transmitter
Interference to adjacent signals caused by parasitic oscillations at
the antenna
'SUBELEMENT 3AI -- Antennas and Feed Lines (3 questions)
3
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 whose parasitic elements are all constructed to be directors
An antenna that radiates in direct line-of-sight propagation, but not
sky-wave or skip propagation
An antenna permanently mounted so as to radiate in only one direction
An antenna that radiates more strongly in some directions than others
3AI-1-1.3

What is a Yagi antenna?

Half-wavelength elements stacked vertically and excited in phase
Quarter-wavelength elements arranged horizontally and excited out of
phase
Half-wavelength linear driven element(s) with parasitically excited
parallel linear elements
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 delta loop antenna
A quad antenna
A Yagi antenna
A Zepp antenna
3AI-1-1.6

How many directly driven elements does a Yagi antenna have?

None; they are all parasitic
One
Two
All elements are directly driven
3AI-1-1.7


What is parasitic beam antenna?

An antenna where the director and reflector elements receive their RF

excitation by induction or radiation from the driven elements
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?

Four parallel metal tubes, 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
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)?

Delta loop
Cubical quad
Dual rhombic
Stacked Yagi
3AI-1-2.3

Approximately how long is one side of the driven element of a cubical quad
antenna?

2 electrical wavelengths
1 electrical wavelength
1/2 electrical wavelength
1/4 electrical wavelength
3AI-1-2.4

Approximately how long is the wire in the driven element of a cubical quad
antenna?

1/4 electrical wavelength
1/2 electrical wavelength
1 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, 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 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 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 feedpoint is in the center of a horizontal side?

Circular
Helical
Horizontal
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 feedpoint is
at the bottom corner?

Circular
Helical
Horizontal
Vertical
3AI-2-2.1

What is the polarization of electromagnetic waves radiated from a half-
wavelength antenna perpendicular to the earth's surface?

Circularly polarized waves
Horizontally polarized waves
Parabolically polarized waves
Vertically polarized waves
3AI-2-2.2

What is the electromagnetic wave polarization of most man-made electrical
noise radiation in the HF/VHF spectrum?

Horizontal
Left-hand circular
Right-hand circular
Vertical
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 parallel to the

earth's surface
The magnetic lines of force in the radio wave are perpendicular 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 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?

Circular
Helical
Horizontal
Vertical
3AI-2-2.5

What electromagnetic polarization does a cubical quad antenna have when all
sides are at 45 degrees to the earth's surface and the feedpoint is at a side
corner?

Circular
Helical
Horizontal
Vertical
3AI-3-1.1

What is meant by the term standing wave ratio?

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
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 negative half of the RF cycle
Power reflected to the transmitter site by building and trees
3AI-3-2.2

What is meant by the term reflected power?

The power radiated from the back of a directional antenna
The power returned to the transmitter from the 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 is unpredictable
It becomes nonexistent
It decreases
It increases
3AI-3-3.2

What type of feed line is best suited to operating at a high standing wave
ratio?

Coaxial cable
Flat ribbon "twin lead"
Parallel open-wire line
Twisted pair
3AI-3-3.3

What happens to RF energy not delivered to the antenna by a lossy coaxial
cable?

It is radiated by the feed line
It is returned to the transmitter's chassis ground
Some of it is dissipated as heat in the conductors and dielectric
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 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
Feed line with neither conductor connected to ground
3AI-4-1.2

What is an unbalanced line?

Feed line with neither conductor connected to ground
Feed line with both conductors connected to ground to suppress harmonics
Feed line with one conductor connected to ground
Feed line with the outer conductor connected to ground at uneven
intervals
3AI-4-2.1

What is a balanced antenna?

A symmetrical antenna with one side of the feedpoint connected to

ground
An antenna (or a driven element in an array) that is symmetrical about
the feed point
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 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 may be installed on a balanced antenna so that it may be
fed with unbalanced feed line
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 the line (list the line with the lowest attenuation first):
RG-8, RG-58, RG-174 and open-wire line.

RG-174, RG-58, RG-8, open-wire line
RG-8, open-wire line, RG-58, RG-174
Open-wire line, RG-8, 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 to an even number of wavelengths long
Cut off the excess cable to an odd number of wavelengths long
Cut off the excess cable
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?

The length has no effect on signal loss
As length increases, signal loss increases
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 is independent of frequency
Loss increases with increasing 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 operating frequency increases, what happens to conductor losses in a feed
line?

The losses decrease
The losses increase
The losses remain the same
The losses decrease to zero
3AI-6-1.1

You are using open-wire feed line in your Amateur Radio station.  Why
should you ensure that no one can come in contact with the feed line while
you are transmitting?

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 feel line while transmitting will cause
parasitic radiation
Because high RF voltages can be present on open-wire feed line