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BPSK31

Technician: PSK

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What does the abbreviation "PSK" mean? A. Pulse Shift Keying B.…
1000px-Crystal_oscillator.svg

Amateur Extra: Crystal Oscillator Frequency

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Which of the following must be done to insure that a crystal…
RMS_voltage_average_power.svg

General: Peak Envelope Power (PEP) Output

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What is the output PEP from a transmitter if an oscilloscope…
Series Circuit

Technician: Circuit Types

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In which type of circuit is current the same through all components? A.…
Sporadic E Propagation

Amateur Extra: Sporadic E Propagation

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At what time of year is Sporadic E propagation most likely to…
Modulated_Radio_Signal_Frequency_Spectrum

General: LSB Frequency Range

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What frequency range is occupied by a 3 kHz LSB signal when the…

Technician: Coax Lightning Protection

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Which of these precautions should be taken when installing devices…
1280px-US02632058_Gray

Amateur Extra: Gray Code

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What is an advantage of Gray code in digital communications where…
Electronic_Amplifier_Class_A

General: Class A Amplifier

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Which of the following is a characteristic of a Class A amplifier? A.…