Exam Primer
Overview
1. Regulations and Policies
Authority and Regulations
Licence
License Penalties
Certificate
Operation, Repair
Content Restrictions
Operating Restrictions
Interference
Emergencies
Non-remuneration, Privacy
Call Signs
Other Countries
Frequency Bands
Power Allowed
unmodulated carriers, retransmission
amplitude modulation, frequency stability, me
International Telecommunication Union (ITU)
Exams
Antenna Structures
RF Field Strength
Resolving Complaints
2. Operating and Procedures
VHF/UHF Repeaters - Voice
Phonetic Alphabet
Voice Operating Procedures
tuning, testing and dummy loads
Morse Code (CW) procedures
RST signal reporting, S meter
Q Signals
Emergency Operating Procedures
Record Keeping, Antenna Orientation and Maps
3. Station Assembly, Practice and Safety
Layout of HF Stations
Layout of FM Transmitters
Layout of FM Receivers
Layout of CW Transmitters
Layout of SSB/CW receivers
Layout of SSB Transmitters
Layout of Digital Systems
Layout of Regulated Power Supplies
Layout of Yagi-Uda Antennas
Receiver Fundamentals
Transmitter, carrier, keying, AM
Carrier Suppression, SSB
Frequency and Phase Modulation
Station Accessories
Digital Modes
Batteries
Power Supplies
Electrical Safety
Antenna and Tower Safety
RF Exposure Safety
4. Circuit Components
Amplifier Fundamentals
Diodes
Bipolar Transistors
Field-effect Transistors
Tiode Vacuum Tubes
Resister Color Codes
5. Basic Electronics and Theory
Metric Prefixes
Basic Concepts
Circuits
Ohm's law
Series and Parallel Resistors
Power law, Resister Power Disipation
AC and frequency
Ratios, Logarithms and Decibels
Inductance and Capacitance
Reactance and Impedance
Magnetica and Transformers
Resonance and Tuned Circuits
Meters and Measurements
6. Feedlines and Antenna Systems
Impedance and Feedlines
Balanced and Unbalanced feedlines
Feedlines and Connectors
Line Losses
Standing Wave Ratio
Impedance Matching
Isotropic Sources, Polarization
Wavelength vs Physical Length
Antenna Radiation Patterns
Vertical Antennas
Yagi Antennas
Wire Antennas
Quad/loop Antennas
7. Radio Wave Propagation
Propogation Types
Ionospheric Regions
Hops and Skips
Ionosphere Issues
Solar Activity
MF and HF and Skywaves
VHF and UHF, Sporadic-E, Aurira, Ducting
Scatter - HF, VHF, UHF
8. Interference and Suppression
Front-end overload
Audio Rectification, Bypass Capacitors, Ferri
Intermodulation, Spurious, Key-clicks
Harmonics, Splatter, Transmitter Adjustments
Filters
5.4 Ohm's law
Practice
B-005-04-01
If a current of 2 amperes flows through a 50-ohm resistor, what is the voltage across the resistor?
48 volts
52 volts
100 volts
25 volts
B-005-04-02
How is the current in a DC circuit calculated when the voltage and resistance are known?
Current equals voltage divided by resistance
Current equals resistance multiplied by voltage
Current equals resistance divided by voltage
Current equals power divided by voltage
B-005-04-03
How is the resistance in a DC circuit calculated when the voltage and current are known?
Resistance equals current multiplied by voltage
Resistance equals voltage divided by current
Resistance equals power divided by voltage
Resistance equals current divided by voltage
B-005-04-04
How is the voltage in a DC circuit calculated when the current and resistance are known?
Voltage equals current divided by resistance
Voltage equals resistance divided by current
Voltage equals power divided by current
Voltage equals current multiplied by resistance
B-005-04-05
If a 12-volt battery supplies 0.25 ampere to a circuit, what is the circuit's resistance?
3 ohms
48 ohms
12 ohms
0.25 ohm
B-005-04-06
Calculate the value of resistance necessary to drop 100 volts with current flow of .8 milliamperes:
125 kilohms
125 ohms
1250 ohms
1.25 kilohms
B-005-04-07
The voltage required to force a current of 4.4 amperes through a resistance of 50 ohms is:
220 volts
2220 volts
22.0 volts
0.220 volt
B-005-04-08
A lamp has a resistance of 30 ohms and a 6 volt battery is connected. The current flow will be:
2 amperes
0.5 ampere
0.005 ampere
0.2 ampere
B-005-04-09
What voltage would be needed to supply a current of 200 mA, to operate an electric lamp which has a resistance of 25 ohms?
5 volts
8 volts
175 volts
225 volts
B-005-04-10
The resistance of a circuit can be found by using one of the following:
R = E/I
R = I/E
R = E/R
R = E X I
B-005-04-11
If a 3 volt battery supplies 300 mA to a circuit, the circuit resistance is:
10 ohms
9 ohms
5 ohms
3 ohms