CallSign.co - Amateur Radio on the Web

FCC Question ID

T1C04

When are you allowed to operate your amateur station in a foreign country?

Choose A

When the foreign country authorizes it

Choose B

When there is a mutual agreement allowing third party communications

Choose C

When authorization permits amateur communications in a foreign language

Choose D

When you are communicating with non-licensed individuals in another country

T1A07

What is the FCC Part 97 definition of a space station?

Choose A

Any satellite orbiting the earth

Choose B

A manned satellite orbiting the earth

Choose C

An amateur station located more than 50 km above the Earth's surface

Choose D

An amateur station using amateur radio satellites for relay of signals

T1A09

Who selects a Frequency Coordinator?

Choose A

The FCC Office of Spectrum Management and Coordination Policy

Choose B

The local chapter of the Office of National Council of Independent Frequency Coordinators

Choose C

Amateur operators in a local or regional area whose stations are eligible to be repeater or auxiliary stations

Choose D

FCC Regional Field Office

T1D03

When is it permissible to transmit messages encoded to hide their meaning?

Choose A

Only during contests

Choose B

Only when operating mobile

Choose C

Only when transmitting control commands to space stations or radio control craft

Choose D

Only when frequencies above 1280 MHz are used

T1B09

Why should you not set your transmit frequency to be exactly at the edge of an amateur band or sub-band?

Choose A

To allow for calibration error in the transmitter frequency display

Choose B

So that modulation sidebands do not extend beyond the band edge

Choose C

To allow for transmitter frequency drift

Choose D

All of these choices are correct

T1F02

When using tactical identifiers such as “Race Headquarters” during a community service net operation, how often must your station transmit the station’s FCC-assigned call sign?

Choose A

Never, the tactical call is sufficient

Choose B

Once during every hour

Choose C

At the end of each communication and every ten minutes during a communication

Choose D

At the end of every transmission

T2A09

What brief statement indicates that you are listening on a repeater and looking for a contact?

Choose A

The words “Hello test” followed by your call sign

Choose B

Your call sign

Choose C

The repeater call sign followed by your call sign

Choose D

The letters “QSY” followed by your call sign

T2B08

Which of the following applies when two stations transmitting on the same frequency interfere with each other?

Choose A

Common courtesy should prevail, but no one has absolute right to an amateur frequency

Choose B

Whoever has the strongest signal has priority on the frequency

Choose C

Whoever has been on the frequency the longest has priority on the frequency

Choose D

The station that has the weakest signal has priority on the frequency

T2C02

What is meant by the term "NCS" used in net operation?

Choose A

Nominal Control System

Choose B

Net Control Station

Choose C

National Communications Standard

Choose D

Normal Communications Syntax

T3A04

What can happen if the antennas at opposite ends of a VHF or UHF line of sight radio link are not using the same polarization?

Choose A

The modulation sidebands might become inverted

Choose B

Signals could be significantly weaker

Choose C

Signals have an echo effect on voices

Choose D

Nothing significant will happen

T3B04

How fast does a radio wave travel through free space?

Choose A

At the speed of light

Choose B

At the speed of sound

Choose C

Its speed is inversely proportional to its wavelength

Choose D

Its speed increases as the frequency increases

T3C09

What is generally the best time for long-distance 10 meter band propagation via the F layer?

Choose A

From dawn to shortly after sunset during periods of high sunspot activity

Choose B

From shortly after sunset to dawn during periods of high sunspot activity

Choose C

From dawn to shortly after sunset during periods of low sunspot activity

Choose D

From shortly after sunset to dawn during periods of low sunspot activity

T4A08

Which of the following conductors provides the lowest impedance to RF signals?

Choose A

Round stranded wire

Choose B

Round copper-clad steel wire

Choose C

Twisted-pair cable

Choose D

Flat strap

T4B11

What is the function of automatic gain control, or AGC?

Choose A

To keep received audio relatively constant

Choose B

To protect an antenna from lightning

Choose C

To eliminate RF on the station cabling

Choose D

An asymmetric goniometer control used for antenna matching

T5A09

What is the name for a current that reverses direction on a regular basis?

Choose A

Alternating current

Choose B

Direct current

Choose C

Circular current

Choose D

Vertical current

T5B10

What is the approximate amount of change, measured in decibels (dB), of a power decrease from 12 watts to 3 watts?

Choose A

-1 dB

Choose B

-3 dB

Choose C

-6 dB

Choose D

-9 dB

T5C02

What is the basic unit of capacitance?

Choose A

The farad

Choose B

The ohm

Choose C

The volt

Choose D

The henry

T5D07

What is the current in a circuit with an applied voltage of 120 volts and a resistance of 80 ohms?

Choose A

9600 amperes

Choose B

200 amperes

Choose C

0.667 amperes

Choose D

1.5 amperes

T6A07

What electrical component usually is constructed as a coil of wire?

Choose A

Switch

Choose B

Capacitor

Choose C

Diode

Choose D

Inductor

T6B02

What electronic component allows current to flow in only one direction?

Choose A

Resistor

Choose B

Fuse

Choose C

Diode

Choose D

Driven element

T6C05

What is component 4 in figure T1?

Choose A

Resistor

Choose B

Transistor

Choose C

Battery

Choose D

Ground symbol

T6D07

Which of the following is commonly used as a visual indicator?

Choose A

LED

Choose B

FET

Choose C

Zener diode

Choose D

Bipolar transistor

T7A03

Which of the following is used to convert a radio signal from one frequency to another?

Choose A

Phase splitter

Choose B

Mixer

Choose C

Inverter

Choose D

Amplifier

T7B02

What would cause a broadcast AM or FM radio to receive an amateur radio transmission unintentionally?

Choose A

The receiver is unable to reject strong signals outside the AM or FM band

Choose B

The microphone gain of the transmitter is turned up too high

Choose C

The audio amplifier of the transmitter is overloaded

Choose D

The deviation of an FM transmitter is set too low

T7C10

Why should the outer jacket of coaxial cable be resistant to ultraviolet light?

Choose A

Ultraviolet resistant jackets prevent harmonic radiation

Choose B

Ultraviolet light can increase losses in the cable’s jacket

Choose C

Ultraviolet and RF signals can mix, causing interference

Choose D

Ultraviolet light can damage the jacket and allow water to enter the cable

T7D03

How is a simple ammeter connected to a circuit?

Choose A

In series with the circuit

Choose B

In parallel with the circuit

Choose C

In quadrature with the circuit

Choose D

In phase with the circuit

T8A11

What is the approximate maximum bandwidth required to transmit a CW signal?

Choose A

2.4 kHz

Choose B

150 Hz

Choose C

1000 Hz

Choose D

15 kHz

T8B11

Who may receive telemetry from a space station?

Choose A

Anyone who can receive the telemetry signal

Choose B

A licensed radio amateur with a transmitter equipped for interrogating the satellite

Choose C

A licensed radio amateur who has been certified by the protocol developer

Choose D

A licensed radio amateur who has registered for an access code from AMSAT

T8C06

How is access to some IRLP nodes accomplished?

Choose A

By obtaining a password that is sent via voice to the node

Choose B

By using DTMF signals

Choose C

By entering the proper internet password

Choose D

By using CTCSS tone codes

T8D14

What is an electronic keyer?

Choose A

A device for switching antennas from transmit to receive

Choose B

A device for voice activated switching from receive to transmit

Choose C

A device that assists in manual sending of Morse code

Choose D

An interlock to prevent unauthorized use of a radio

T9A11

What is the gain of an antenna?

Choose A

The additional power that is added to the transmitter power

Choose B

The additional power that is lost in the antenna when transmitting on a higher frequency

Choose C

The increase in signal strength in a specified direction compared to a reference antenna

Choose D

The increase in impedance on receive or transmit compared to a reference antenna

T9B06

Which of the following connectors is most suitable for frequencies above 400 MHz?

Choose A

A UHF (PL-259/SO-239) connector

Choose B

A Type N connector

Choose C

An RS-213 connector

Choose D

A DB-25 connector

T0A07

Which of these precautions should be taken when installing devices for lightning protection in a coaxial cable feed line?

Choose A

Include a parallel bypass switch for each protector so that it can be switched out of the circuit when running high power

Choose B

Include a series switch in the ground line of each protector to prevent RF overload from inadvertently damaging the protector

Choose C

Keep the ground wires from each protector separate and connected to station ground

Choose D

Mount all of the protectors on a metal plate that is in turn connected to an external ground rod

T0B05

What is the purpose of a gin pole?

Choose A

To temporarily replace guy wires

Choose B

To be used in place of a safety harness

Choose C

To lift tower sections or antennas

Choose D

To provide a temporary ground

T0C12

How does RF radiation differ from ionizing radiation (radioactivity)?

Choose A

RF radiation does not have sufficient energy to cause genetic damage

Choose B

RF radiation can only be detected with an RF dosimeter

Choose C

RF radiation is limited in range to a few feet

Choose D

RF radiation is perfectly safe