Core radio theory, rules, and operating practices for the FCC Technician class amateur radio license, based on the public-domain question pool.
42 cards · basic cards · AI-written, checked twice. Edit anything.
- What is the relationship between frequency and wavelength in radio waves?
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They are inversely proportional: as frequency increases, wavelength decreases. Wavelength (meters) = 300 divided by frequency (MHz).- What does AM stand for in radio?
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Amplitude Modulation- What does FM stand for in radio?
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Frequency Modulation- What does SSB stand for?
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Single Sideband- What are the frequency limits of the 2-meter amateur radio band?
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144 MHz to 148 MHz- What are the frequency limits of the 70-centimeter amateur radio band?
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420 MHz to 450 MHz- What is the maximum transmitting power allowed for a Technician class licensee on VHF/UHF bands?
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1500 watts PEP (Peak Envelope Power) on most bands- What does PEP stand for?
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Peak Envelope Power- What is the purpose of a repeater in amateur radio?
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To receive a transmission on one frequency and retransmit it on another, extending the range of communication- What is the correct procedure for accessing a repeater with an offset frequency?
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Transmit on the input frequency (lower frequency on VHF) and receive on the output frequency (higher frequency on VHF)- What is the term for the direction toward which an antenna's radiation pattern has maximum gain?
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The antenna's direction of maximum radiation or main lobe- What type of antenna is a Yagi?
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A directional antenna consisting of driven element, reflector, and director elements- What is an isotropic radiator?
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A theoretical antenna that radiates equally in all directions- What does dBi stand for?
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Decibels relative to isotropic radiator- What is the main advantage of a half-wave dipole antenna?
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It is omnidirectional in the horizontal plane and has relatively simple construction and tuning
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