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G8A - Signals and Emissions

General Class

Carriers and modulation: AM, FM, SSB, bandwidth, deviation

14 questions

All G0A G0B G1A G1B G1C G1D G1E G2A G2B G2C G2D G2E G3A G3B G3C G4A G4B G4C G4D G4E G5A G5B G5C G6A G6B G7A G7B G7C G8A G8B G8C G9A G9B G9C G9D
G8A01

How is direct binary FSK modulation generated?
G8A02

What is the name of the process that changes the phase angle of an RF signal to convey information?
G8A03

What is the name of the process that changes the instantaneous frequency of an RF wave to convey information?
G8A04

What emission is produced by a reactance modulator connected to a transmitter RF amplifier stage?
G8A05

What type of modulation varies the instantaneous power level of the RF signal?
G8A06

Which of the following is characteristic of QPSK31?
G8A07

Which of the following phone emissions uses the narrowest bandwidth?
G8A08

Which of the following is an effect of overmodulation?
G8A09

What type of modulation is used by FT8?
G8A10

What is meant by the term “flat-topping,” when referring to an amplitude-modulated phone signal?
G8A11

What is the modulation envelope of an AM signal?
G8A12

What is QPSK modulation?
G8A13

What is a link budget?
G8A14

What is link margin?