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
  • 4.2 Diodes

    Practice


    B-004-02-01
    Zener diodes are used as:
    current regulators
    voltage regulators
    RF detectors
    AF detectors

    B-004-02-02
    One important application for diodes is recovering information from transmitted signals. This is referred to as:
    regeneration
    ionization
    biasing
    demodulation

    B-004-02-03
    The primary purpose of a Zener diode is to:
    provide a voltage phase shift
    regulate or maintain a constant voltage
    to boost the power supply voltage
    provide a path through which current can flow

    B-004-02-04
    The action of changing alternating current to direct current is called:
    amplification
    rectification
    transformation
    modulation

    B-004-02-05
    The electrodes of a semi- conductor diode are known as:
    gate and source
    anode and cathode
    collector and base
    cathode and drain

    B-004-02-06
    If alternating current is applied to the anode of a diode, what would you expect to see at the cathode?
    No signal
    Steady direct current
    Pulsating direct current
    Pulsating alternating current

    B-004-02-07
    In a semi-conductor diode, electrons flow from:
    anode to cathode
    cathode to grid
    grid to anode
    cathode to anode

    B-004-02-08
    What semi-conductor device glows red, yellow, or green, depending upon its chemical composition?
    A light-emitting diode
    A fluorescent bulb
    A neon bulb
    A vacuum diode

    B-004-02-09
    Voltage regulation is the principal application of the:
    junction diode
    light-emitting diode
    vacuum diode
    Zener diode

    B-004-02-10
    In order for a diode to conduct, it must be:
    close coupled
    forward-biased
    enhanced
    reverse-biased