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T7B09 - What should be the first step to resolve non-fiber optic cable TV interference caused by your amateur radio transmission?
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0
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0
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January 2, 2026
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T7A09 - What is the function of the SSB/CW-FM switch on a VHF power amplifier?
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0
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0
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January 2, 2026
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T6C09 - What is component 4 in figure T-2?
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0
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1
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January 2, 2026
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T6C05 - What is component 4 in figure T-1?
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0
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1
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January 2, 2026
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T6A12 - What type of switch is represented by component 3 in figure T-2?
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0
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1
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January 2, 2026
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T5C12 - What is impedance?
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0
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1
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January 2, 2026
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T0C11 - What is the definition of duty cycle during the averaging time for RF exposure?
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0
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0
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January 2, 2026
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T0C10 - Why is duty cycle one of the factors used to determine safe RF radiation exposure levels?
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0
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0
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January 2, 2026
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T0C09 - How can you make sure your station stays in compliance with RF safety regulations?
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0
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0
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January 2, 2026
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T0C08 - Which of the following actions can reduce exposure to RF radiation?
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0
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2
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January 2, 2026
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T0C06 - Which of the following is an acceptable method to determine whether your station complies with FCC RF exposure regulations?
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0
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0
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January 2, 2026
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T0B11 - Which of the following establishes grounding requirements for an amateur radio tower or antenna?
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0
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0
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January 2, 2026
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T0B10 - Which of the following is true when installing grounding conductors used for lightning protection?
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0
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0
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January 2, 2026
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T0B09 - Why should you avoid attaching an antenna to a utility pole?
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0
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0
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January 2, 2026
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T0B07 - Which of the following is an important safety rule to remember when using a crank-up tower?
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0
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0
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January 2, 2026
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T0B05 - What is the purpose of a safety wire through a turnbuckle used to tension guy lines?
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0
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0
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January 2, 2026
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T0A12 - Which of the following precautions should be taken when measuring high voltages with a voltmeter?
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0
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0
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January 2, 2026
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T0A10 - What hazard is caused by charging or discharging a battery too quickly?
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0
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0
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January 2, 2026
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T0A09 - What should be done to all external ground rods or earth connections?
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0
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0
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January 2, 2026
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T0A08 - Where should a fuse or circuit breaker be installed in a 120V AC power circuit?
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0
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0
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January 2, 2026
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E7H13 - Which of the following is a technique for providing highly accurate and stable oscillators needed for microwave transmission and reception?
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0
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2
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January 2, 2026
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E7H12 - Which of the following ensures that a crystal oscillator operates on the frequency specified by the crystal manufacturer?
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0
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0
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January 2, 2026
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E7H11 - What are the major spectral impurity components of direct digital synthesizers?
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0
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0
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January 2, 2026
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E7H10 - What information is contained in the lookup table of a direct digital synthesizer (DDS)?
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0
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1
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January 2, 2026
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E7H09 - What type of frequency synthesizer circuit uses a phase accumulator, lookup table, digital-to-analog converter, and a low-pass anti-alias filter?
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0
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0
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January 2, 2026
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E7H08 - Which of the following components can be used to reduce thermal drift in crystal oscillators?
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0
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0
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January 2, 2026
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E7H07 - How can an oscillator's microphonic responses be reduced?
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0
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0
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January 2, 2026
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E7H06 - Which of these functions can be performed by a phase-locked loop?
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0
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0
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January 2, 2026
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E7H05 - How is positive feedback supplied in a Pierce oscillator?
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0
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0
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January 2, 2026
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E7H04 - How is positive feedback supplied in a Colpitts oscillator?
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0
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0
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January 2, 2026
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