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General Class Exam Question Pool

effective 7/01/2015 thru 6/30/2019

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2015-G4D: Speech processors; S meters; sideband operation near band edges

2015-G4D01: What is the purpose of a speech processor as used in a modern transceiver?

Increase the intelligibility of transmitted phone signals during poor conditions

Increase transmitter bass response for more natural sounding SSB signals

Prevent distortion of voice signals

Decrease high-frequency voice output to prevent out of band operation



2015-G4D02: Which of the following describes how a speech processor affects a transmitted single sideband phone signal?

It increases average power

It increases peak power

It reduces harmonic distortion

It reduces intermodulation distortion



2015-G4D03: Which of the following can be the result of an incorrectly adjusted speech processor?

All of these choices are correct

Distorted speech

Splatter

Excessive background pickup



2015-G4D04: What does an S meter measure?

Received signal strength

Conductance

Impedance

Transmitter power output



2015-G4D05: How does a signal that reads 20 dB over S9 compare to one that reads S9 on a receiver, assuming a properly calibrated S meter?

It is 100 times more powerful

It is 10 times less powerful

It is 20 times less powerful

It is 20 times more powerful



2015-G4D06: Where is an S meter found?

In a receiver

In an SWR bridge

In a transmitter

In a conductance bridge



2015-G4D07: How much must the power output of a transmitter be raised to change the S meter reading on a distant receiver from S8 to S9?

Approximately 4 times

Approximately 1.5 times

Approximately 2 times

Approximately 8 times



2015-G4D08: What frequency range is occupied by a 3 kHz LSB signal when the displayed carrier frequency is set to 7.178 MHz?

7.175 to 7.178 MHz

7.178 to 7.181 MHz

7.178 to 7.184 MHz

7.1765 to 7.1795 MHz



2015-G4D09: What frequency range is occupied by a 3 kHz USB signal with the displayed carrier frequency set to 14.347 MHz?

14.347 to 14.350 MHz

14.347 to 14.647 MHz

14.344 to 14.347 MHz

14.3455 to 14.3485 MHz



2015-G4D10: How close to the lower edge of the 40-meter General Class phone segment should your displayed carrier frequency be when using 3 kHz wide LSB?

At least 3 kHz above the edge of the segment

At least 3 kHz below the edge of the segment

Your displayed carrier frequency may be set at the edge of the segment

At least 1 kHz above the edge of the segment



2015-G4D11: How close to the upper edge of the 20-meter General Class band should your displayed carrier frequency be when using 3 kHz wide USB?

At least 3 kHz below the edge of the band

At least 3 kHz above the edge of the band

Your displayed carrier frequency may be set at the edge of the band

At least 1 kHz below the edge of the segment





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