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
  • 3.12 Carrier Suppression, SSB

    Practice


    B-003-12-01
    What may happen if an SSB transmitter is operated with the microphone gain set too high?
    It may cause interference to other stations operating on a higher frequency band
    It may cause atmospheric interference in the air around the antenna
    It may cause splatter interference to other stations operating near its frequency
    It may cause digital interference to computer equipment

    B-003-12-02
    What may happen if an SSB transmitter is operated with too much speech processing?
    It may cause digital interference to computer equipment
    It may cause atmospheric interference in the air around the antenna
    It may cause interference to other stations operating on a higher frequency band
    It may cause splatter interference to other stations operating near its frequency

    B-003-12-03
    What is the term for the average power supplied to an antenna transmission line during one RF cycle, at the crest of the modulation envelope?
    Peak output power
    Peak envelope power
    Average radio-frequency power
    Peak transmitter power

    B-003-12-04
    What is the usual bandwidth of a singlesideband amateur signal?
    1 kHz
    2 kHz
    Between 3 and 6 kHz
    Between 2 and 3 kHz

    B-003-12-05
    In a typical single-sideband phone transmitter, what circuit processes signals from the balanced modulator and sends signals to the mixer?
    IF amplifier
    Filter
    RF amplifier
    Carrier oscillator

    B-003-12-06
    What is one advantage of carrier suppression in a double-sideband phone transmission?
    More power can be put into the sidebands
    Only half the bandwidth is required for the same information content
    Greater modulation percentage is obtainable with lower distortion
    Simpler equipment can be used to receive a double-sideband suppressedcarrier signal

    B-003-12-07
    What happens to the signal of an overmodulated single-sideband or double-sideband phone transmitter?
    It becomes louder with no other effects
    It occupies less bandwidth with poor high-frequency response
    It has higher fidelity and improved signal-to-noise ratio
    It becomes distorted and occupies more bandwidth

    B-003-12-08
    How should the microphone gain control be adjusted on a single-sideband phone transmitter?
    For slight movement of the ALC meter on modulation peaks
    For full deflection of the ALC meter on modulation peaks
    For 100% frequency deviation on modulation peaks
    For a dip in plate current

    B-003-12-09
    The purpose of a balanced modulator in an SSB transmitter is to:
    make sure that the carrier and both sidebands are 180o out of phase
    ensure that the percentage of modulation is kept constant
    make sure that the carrier and both sidebands are in phase
    suppress the carrier and pass on the two sidebands

    B-003-12-10
    In a SSB transmission, the carrier is:
    transmitted with one sideband
    reinserted at the receiver
    inserted at the transmitter
    of no use at the receiver

    B-003-12-11
    The automatic level control (ALC) in a SSB transmitter:
    eliminates the transmitter distortion
    controls the peak audio input so that the final amplifier is not overdriven
    increases the occupied bandwidth
    reduces the system noise