The first 25 kHz of the phone segment. The phone segment is from 3750 kHz to 4000 kHz.
The first 25 kHz of the CW segment. The CW/RTTY band is 7000 to 7150 kHz.
The first 25 kHz of the CW/RTTY segment. The first 25 kHz of the phone segment.
The Extra class only segments are 25 kHz wide (21.000-21.025 MHz and 21.200-21.225 MHz).
Originating station
Discontinue forwarding
Reduce interference
When authorized by the FCC
The captain is in charge of everything.
The same as operating in the USA.
An Environmental Assessment must be done
Part of the classroom instruction
Teachers
200 feet above ground level
An FCC reciprocal permit is an authorization issued to certain foreign amateur operators which allows Amateur Radio operation in the USA.
Non-US citizen
Those authorized to US amateurs
Location information
Never
Form 610-A
Not being a citizen of country issuing license
None
None
1 year
The reciprocal permit becomes void
Radio Amateur Civil Emergency Service
Civil defense communications
A civil defense organization
Any licensed amateur station
Novices and higher
No additional operator privileges
A war emergency
Repeaters in the sky
Telecommand
Telemetry
Space
Any
Three months
Earth station
Administer amateur operator license examinations
Selling amateur license preparation materials
Answer given is old answer
Answer given is old answer
Answer given is old answer
Examinees
Questions of the person's honesty
Answer given is old answer
VEC question pool
Approved by a VEC
Approved by a VEC
Answer given is old answer
Previously suspended or revoked license
Answer given is old answer
Answer given is old answer
Answer given is old answer
Administering license examinations
None
Look for "a qualified supplier"
The VEs
The elements that the CSCE indicates the examinee passed
Observing the candidates
The VEs
Terminate the examination
Graded immediately
Certify the qualification
Submit papers to VEC in ten days
VEC accreditation
VEC accreditation
CSCE
Temporary AE or /AE
South to north
North to south
Period is a time measurement
Receiving on 2 meters
Receiving on 70 centimeters - transmitting on 2 meters
Receiving on 2 meters
Receiving on 23 centimeters
A transponder is similar to a repeater
Doppler
Satellite is rotating
Circularly polarized
Thirty
Scanning alternate lines
Turning off the scanning beam
One volt across 75 Ω
6 MHz
70%
12.5%
Blacker than Black
Immunity from fading
Amplitude modulation of the video carrier
The higher HF bands (10 and 15 meters) will be mostly dead
Always listen before transmitting, not just during contests
Split frequency operation
A world wide numbering system
RST
Bottom
50.100 to 50.125 MHz
DX "window"
Try a lower HF band
FSK
Forward
Sending characters twice
TNC is in command mode
Selective fading
FAX
Allowed in phone band segment
AMTEX
Special interest group
HF packet is NOT limited to Extra class
If you can see it, you can work it
Fluttery
When the moon is close
Low noise figure
2X2
144.000 - 144.100 MHz
432.000 - 432.100
E layer
Low VHF
Short
North and south of the equator
Five thousand
Afternoon
Long path
160 to 6 meters
Twenty
Two signals being received
Gray line between day and night
Sunrise and sunset
Solar absorption drops
Oscilloscope displays signals in the time domain
Frequency
Amplitude
Spectrum analyzer
Spectrum analyzer
Displays all frequency components
Simplified readout
Logic probe
Logic state
Logic probe
Noise figure
Noise
Preselector
Ringing
300 Hz
2.4 kHz
Undesired signals may be demodulated
About the same
15 kHz for narrow band FM
High Q filters
Ratio of max and min usable signal strengths
Desensitization
Noise generated mostly in the RF stages
Ignition noise
Filtering
Ignition leads
Changes electrical lengths
Connect radio leads directly to battery
Connect radio leads directly to battery
Lighting
Good in power outages too
AC-line filter
RF signal
An FM receiver is probably least useful, but it can detect line noise
Bidirectional
Good front-to-back
Two or more beam headings
Prevents receiver overload
Adcock antenna
Multiple turns of wire wound in the shape of an open coil
Increasing size of coil or number of turns
The null is sharp
Rough
Locating a hidden transmitter
Increased conductivity
Increased conductivity
Increased conductivity corresponds to a decrease in resistance
Increased conductivity
LED and a phototransistor
LED and a phototransistor
Resistance
Cadmium sulfide
Lead sulfide
Crystalline semiconductor
Time constant
Time constant
Time constant
For a capacitor being charged: One Time Constant, 100*(1-e(-1))% = 63.2% Two Time Constants, 100*(1-e(-2))% = 86.5%
For a capacitor being discharged: One Time Constant, 100*(e(-1))% = 36.8% Two Time Constants, 100*(e(-2))% = 13.5%
τ = RC, τ = 940E3*50E-6, τ = 47
τ = RC, τ = .5E6*440E-6, τ = 220
Find what percent 7.36 is of 20 (36.8%). Using V = e-n, find 36.8% on the charging curve. V1τ = 36.8%, V2τ= 3.5%, V3τ = 5% Time will be 1*τ, τ = RC, τ = 2E6*.01E-6 = .02 sec.
Find what percent 0.37 is of 20 (1.8%). Using V = e-n, find 1.8% on the charging curve. V3τ = 5%, V4τ = 1.8%, V5τ = .7% Find τ, τ = RC. Time will be 4*τ
Smith chart
Resistance and reactance circles
Impedance matching
Reactance and resistance
Smith chart
Reactance axis
Resistance axis
Scaling all values with regard to the prime center
Portions of reactance circles
SWR
Transmission line electrical wavelength
Z = R +jXl = 20 +jXl
Z = R +jXl = 30 +jXl
Z = R -jXc = 400 -jXc
Z = R +jXl -jXc. Z = 4 +j4 -j1. Z = 4 +j3 Θ = ATN(X/R) = ATN(3/4) = ATN(.75) = 37°
Plot R as +X (+400) and -j as -Y. Only point 4 fits.
Plot R as +X (+300) and +j as +Y.
Plot R as +X (+300) and -j as -Y. Only point 1 fits.
Plot R as +X (+300).
Z = R +jXl -jXc = 100 +j100. Θ = ATN(100/100) = 45°
Z = R +jXl -jXc = 100 +j100 -j100. Θ = ATN(0/100) = 0°
When R = X then Θ = ±45°
When R = X then Θ = ±45°
Resistive component
Reactive component
Coordinate values
Rectangular
Polar
│Z│ = √(R² + X²)
An FET without a channel
An FET that has a channel
Arrow points toward the N material
Gate, drain and source
Protection
Semiconductor
Direct-coupled differential amplifier
Feedback network
High
Low
Electronic servo loop
Frequency synthesis
Five
High
Low power
Vidicon
Electromagnetic fields
Electrostatic
Length of time for image to disappear
Harmful emissions
Samples an analog signal
Low power
"Bi" means two
A flip-flop
Two
Changes state when triggered
Input #1 Input #2 Output 0 0 0 1 0 0 0 1 0 1 1 1
Input #1 Input #2 Output 0 0 0 1 0 1 0 1 1 1 1 1
List of input combinations and resulting output
Divides
Ten
Count by tens
A 100-kHz signal with harmonics
A crystal is a stable oscillator
A sinusoidal crystal oscillator by itself
The internal reference
Counts
Measure frequency
External network
High Q
Small size
Reduce both gain and Q
Insertion loss for low quality filters
Audio filter
Low-level audio stage
180°
0°
Gain = Rf/R1 = 100000/1000 = 100
Gain = Rf/R1
Gain = Rf/R1
Does not vary
Gate-biasing network
Drain resistor
Voltage gain = Rf/R1 = 1. Signal will be inverted.
