Practice Examination for a FCC issued Amateur Radio Extra Class license (2008-2012 question pool). Class members are required to enter their callsign in the box labeled "Your Name" (appearing below) for homework credit.
CW
RTTY Frequency shift keying
Single sideband, upper sideband only
Single sideband, lower sideband only
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5
2
4
3
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A radio navigation service using satellites for the purpose of self-training, intercommunication and technical studies carried out by amateurs
A spacecraft launching service for amateur-built satellites
A radio communications service using amateur stations on satellites
A radio communications service using stations on Earth satellites for weather information gathering
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A radio service using amateur service frequencies on a regular basis for communications that can reasonably be furnished through other radio services
A radio service of amateur stations for civil defense communications during periods of local, regional, or national civil emergencies
A radio service using amateur service frequencies for broadcasting to the public during periods of local, regional or national civil emergencies
A radio service using local government frequencies by Amateur Radio operators for civil emergency communications
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Any licensed amateur operator
Only Technician, General, Advanced or Amateur Extra Class operators
Only General, Advanced or Amateur Extra Class operators
Only Amateur Extra Class operators
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Send your full call sign once or twice
Send only the last two letters of your call sign until you make contact
Send your full call sign and grid square
Send the call sign of the DX station three times, the words "this is", then your call sign three times
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14.230 MHz
29.6 MHz
52.525 MHz
1255 MHz
RTTY
PACTOR
MT63
PSK31
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The point of maximum height of a satellite's orbit
The point of minimum height of a satellite's orbit
The time it takes for a satellite to complete one revolution around the Earth
The time it takes for a satellite to travel from perigee to apogee
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When the moon is at perigee
When the moon is full
When the moon is at apogee
When the MUF is above 30 MHz
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South
North
East
West
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At midday, the sun, being directly overhead, superheats the ionosphere causing increased refraction of radio waves
At twilight, solar absorption drops greatly, while atmospheric ionization is not weakened enough to reduce the MUF
At darkness, solar absorption drops greatly, while atmospheric ionization remains steady
At mid afternoon, the sun heats the ionosphere, increasing radio wave refraction and the MUF
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Use high quality double shielded coaxial cables to reduce signal losses
Attenuate the transmitter output going to the spectrum analyzer
Match the antenna to the load
All of these choices are correct
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The meter display sensitivity
The minimum discernible signal
The multiplex distortion stability
The maximum detectable spectrum
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The full scale reading of the voltmeter multiplied by its ohms per volt rating will provide the input impedance of the voltmeter
When used as a galvanometer, the reading in volts multiplied by the ohms/volt will determine the power drawn by the device under test
When used as an ohmmeter, the reading in ohms divided by the ohms/volt will determine the voltage applied to the circuit
When used as an ammeter, the full scale reading in amps divided by ohms/volt will determine the size of shunt needed
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When the repeaters are in close proximity and the signals cause feedback in one or both transmitter final amplifiers
When the repeaters are in close proximity and the signals mix in one or both transmitter final amplifiers
When the signals from the transmitters are reflected out of phase from airplanes passing overhead
When the signals from the transmitters are reflected in phase from airplanes passing overhead
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200 watts
1000 watts
1600 watts
600 watts
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0.02 seconds
0.04 seconds
20 seconds
40 seconds
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The voltage leads the current by 90 degrees
The current leads the voltage by 90 degrees
The voltage and current are in phase
The voltage and current are 180 degrees out of phase
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500 ohms at an angle of 37 degrees
900 ohms at an angle of 53 degrees
400 ohms at an angle of 0 degrees
1300 ohms at an angle of 180 degrees
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Varactor diode
Tunnel diode
Silicon-controlled rectifier
Zener diode
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1 kHz at -6 dB
500 Hz at -6 dB
6 kHz at -6 dB
15 kHz at -6 dB
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A modern replacement for a quartz crystal oscillator which displays its fundamental frequency
A display that uses a crystalline liquid to change the way light is refracted
A frequency-determining unit for a transmitter or receiver
A display that uses a glowing liquid to remain brightly lit in dim light
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It increases
It decreases
It stays the same
It becomes unstable
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1
2
3
4
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N-type
P-type
Bipolar
Insulated gate
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An oscillator based on the negative resistance properties of properly-doped semiconductors
An oscillator based on the argon gas diode
A highly stable reference oscillator based on the tee-notch principle
A highly stable reference oscillator based on the hot-carrier effect
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GPS averaging
Period measurement
Prescaling
D/A conversion
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Monostable multivibrator
J-K Flip-Flop
T Flip-Flop
Astable Multivibrator
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A Phase Inverter Load network
A network consisting of two series inductors and two shunt capacitors
A network with only three discrete parts
A matching network in which all components are isolated from ground
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The loading capacitor is set to maximum capacitance and the tuning capacitor is adjusted for minimum allowable plate current
The tuning capacitor is set to maximum capacitance and the loading capacitor is adjusted for minimum plate permissible current
The loading capacitor is adjusted to minimum plate current while alternately adjusting the tuning capacitor for maximum allowable plate current
The tuning capacitor is adjusted for minimum plate current, while the loading capacitor is adjusted for maximum permissible plate current
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It prevents self-oscillation
It provides brute force filtering of the output
It provides fixed bias for Q1
It clips the peaks of the ripple
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0.21
94
47
24
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4.5 watts
9 watts
16 watts
18 watts
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15.36 kHz
9.6 kHz
4.8 kHz
5.76 kHz
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A cosine wave
A square wave
A sawtooth wave
A sine wave
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60
0.167
0.6
1.67
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The total amount of radiation from the directional antenna is increased by the gain of the antenna
The total amount of radiation from the directional antenna is stronger by its front to back ratio
There is no difference between the two antennas
The radiation from the isotropic antenna is 2.15 dB stronger than that from the directional antenna
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Beam headings and radiation patterns
Satellite azimuth and elevation bearings
Impedance and SWR values in transmission lines
Trigonometric functions
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To swamp out harmonics
To maximize losses
To minimize losses
To minimize the Q
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A cardioid
Omnidirectional
A figure-8 broadside to the axis of the array
A figure-8 oriented along the axis of the array
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The geometric angle of sky waves from the source are used to determine its position
A fixed receiving station plots three headings from the signal source on a map
Antenna headings from several different receiving stations are used to locate the signal source
A fixed receiving station uses three different antennas to plot the location of the signal source
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A grounded antenna used to measure earth conductivity
A horizontal antenna used to compare Yagi antennas
A theoretical antenna used as a reference for antenna gain
A spacecraft antenna used to direct signals toward the earth
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Use a 50-ohm 1:1 balun between the antenna and feed-line
Use the "universal stub" matching technique
Connect a series-resonant LC network across the antenna feed terminals
Connect a parallel-resonant LC network across the antenna feed terminals
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A very high impedance
A very low impedance
The same as the characteristic impedance of the line
The same as the input impedance to the final generator stage
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There is no significant difference between the two types of radiation
Only radiation produced by radioactivity can injure human beings
RF radiation does not have sufficient energy to break apart atoms and molecules; radiation from radioactive sources does
Radiation from an antenna will damage unexposed photographic film, ordinary radioactive materials do not cause this problem
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