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
  • 5.7 AC and frequency

    Practice


    B-005-07-01
    What term means the number of times per second that an alternating current flows back and forth?
    Speed
    Pulse rate
    Frequency
    Inductance

    B-005-07-02
    Approximately what frequency range can most humans hear?
    20 000 - 30 000 Hz
    200 - 200 000 Hz
    20 - 20 000 Hz
    0 - 20 Hz

    B-005-07-03
    Why do we call signals in the range 20 Hz to 20 000 Hz audio frequencies?
    Because the human ear cannot sense anything in this range
    Because this range is too low for radio energy
    Because the human ear can sense radio waves in this range
    Because the human ear can sense sounds in this range

    B-005-07-04
    Electrical energy at a frequency of 7125 kHz is in what frequency range?
    Radio
    Audio
    Hyper
    Super-high

    B-005-07-05
    What is the name for the distance an AC signal travels during one complete cycle?
    Wavelength
    Wave speed
    Waveform
    Wave spread

    B-005-07-06
    What happens to a signal's wavelength as its frequency increases?
    It gets longer
    It stays the same
    It disappears
    It gets shorter

    B-005-07-07
    What happens to a signal's frequency as its wavelength gets longer?
    It disappears
    It stays the same
    It goes down
    It goes up

    B-005-07-08
    What does 60 hertz (Hz) mean?
    6000 metres per second
    60 cycles per second
    60 metres per second
    6000 cycles per second

    B-005-07-09
    If the frequency of the waveform is 100 Hz, the time for one cycle is:
    10 seconds
    0.0001 second
    0.01 second
    1 second

    B-005-07-10
    Current in an AC circuit goes through a complete cycle in 0.1 second. This means the AC has a frequency of:
    10 Hz
    1 Hz
    100 Hz
    1000 Hz

    B-005-07-11
    A signal is composed of a fundamental frequency of 2 kHz and another of 4 kHz. This 4 kHz signal is referred to as:
    a fundamental of the 2 kHz signal
    the DC component of the main signal
    a dielectric signal of the main signal
    a harmonic of the 2 kHz signal