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
  • 5.8 Ratios, Logarithms and Decibels

    Practice


    B-005-08-01
    A two-times increase in power results in a change of how many dB?
    6 dB higher
    3 dB higher
    12 dB higher
    1 dB higher

    B-005-08-02
    How can you decrease your transmitter's power by 3 dB?
    Divide the original power by 1.5
    Divide the original power by 3
    Divide the original power by 4
    Divide the original power by 2

    B-005-08-03
    How can you increase your transmitter's power by 6 dB?
    Multiply the original power by 3
    Multiply the original power by 2
    Multiply the original power by 4
    Multiply the original power by 1.5

    B-005-08-04
    If a signal-strength report is "10 dB over S9", what should the report be if the transmitter power is reduced from 1500 watts to 150 watts?
    S9 plus 3 dB
    S9 minus 10 dB
    S9 plus 5 dB
    S9

    B-005-08-05
    If a signal-strength report is "20 dB over S9", what should the report be if the transmitter power is reduced from 1500 watts to 150 watts?
    S9 plus 10 dB
    S9 plus 5 dB
    S9 plus 3 dB
    S9

    B-005-08-06
    The unit "decibel" is used to indicate:
    an oscilloscope wave form
    a mathematical ratio
    certain radio waves
    a single side band signal

    B-005-08-07
    The power output from a transmitter increases from 1 watt to 2 watts. This is a db increase of:
    30
    6
    3
    1

    B-005-08-08
    The power of a transmitter is increased from 5 watts to 50 watts by a linear amplifier. The power gain, expressed in dB, is:
    30 dB
    10 dB
    40 dB
    20 dB

    B-005-08-09
    You add a 9 dB gain amplifier to your 2 watt handheld. What is the power output of the combination?
    11 watts
    16 watts
    20 watts
    18 watts

    B-005-08-10
    The power of a transmitter is increased from 2 watts to 8 watts. This is a power gain of _______ dB.
    6 dB
    3 dB
    8 dB
    9 dB

    B-005-08-11
    A local amateur reports your 100W 2M simplex VHF transmission as 30 dB over S9. To reduce your signal to S9, you would reduce your power to _______ watts.
    1 W
    10 W
    33.3 W
    100 mW