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
5.6 Power law, Resister Power Disipation
Practice
B-005-06-01
Why would a large size resistor be used instead of a smaller one of the same resistance?
For better response time
For a higher current gain
For less impedance in the circuit
For greater power dissipation
B-005-06-02
How many watts of electrical power are used by a 12-VDC light bulb that draws 0.2 ampere?
2.4 watts
60 watts
24 watts
6 watts
B-005-06-03
The DC input power of a transmitter operating at 12 volts and drawing 500 milliamps would be:
20 watts
6 watts
500 watts
12 watts
B-005-06-04
When two 500 ohm 1 watt resistors are connected in series, the maximum total power that can be dissipated by the resistors is:
1 watt
2 watts
1/2 watt
4 watts
B-005-06-05
When two 500 ohm 1 watt resistors are connected in parallel, they can dissipate a maximum total power of:
1/2 watt
1 watt
2 watts
4 watts
B-005-06-06
If the voltage applied to two resistors in series is doubled, how much will the total power change?
increase four times
decrease to half
double
no change
B-005-06-07
If the power is 500 watts and the resistance is 20 ohms, the current is:
2.5 amps
10 amps
25 amps
5 amps
B-005-06-08
A 12 volt light bulb is rated at a power of 30 watts. The current drawn would be:
30/12 amps
18 amps
360 amps
12/30 amps
B-005-06-09
If two 10 ohm resistors are connected in series with a 10 volt battery, the power consumption would be:
5 watts
10 watts
20 watts
100 watts
B-005-06-10
One advantage of replacing a 50 ohm resistor with a parallel combination of two similarly rated 100 ohm resistors is that the parallel combination will have:
the same resistance but lesser power rating
greater resistance and similar power rating
the same resistance but greater power rating
lesser resistance and similar power rating
B-005-06-11
Resistor wattage ratings are:
calculated according to physical size
expressed in joules per second
determined by heat dissipation qualities
variable in steps of one hundred