G4D: Speech processors; S meters; common connectors
G4D01:
What is the reason for using a properly adjusted speech processor with a single sideband phone transmitter?
It improves signal intelligibility at the receiver
It reduces average transmitter power requirements
It reduces unwanted noise pickup from the microphone
It improves voice-frequency fidelity
G4D02:
Which of the following describes how a speech processor affects a transmitted single sideband signal?
It increases the average power
It increases the peak power
It reduces harmonic distortion
It reduces intermodulation distortion
G4D03:
Which of the following can be the result of an incorrectly adjusted speech processor?
All of these answers are correct
Distorted speech
Splatter
Excessive background pickup
G4D04:
What does an S-meter measure?
Received signal strength
Conductance
Impedance
Transmitter power output
G4D05:
How does an S-meter reading of 20 db over S-9 compare to an S-9 signal, assuming a properly calibrated S meter?
It is 100 times stronger
It is 10 times weaker
It is 20 times weaker
It is 20 times stronger
G4D06:
Where is an S-meter generally found?
In a receiver
In a SWR bridge
In a transmitter
In a conductance bridge
G4D07:
Which of the following describes a Type-N connector?
A moisture resistant RF connector useful to 10 GHz
A small bayonet connector used for data circuits
A threaded connector used for hydraulic systems
An audio connector used in surround sound installations
G4D08:
Which of the following connectors would be a good choice for a serial data port?
DB-9
PL-259
Type N
Type SMA
G4D09:
Which of these connector types is commonly used for RF service at frequencies up to 150 MHz?
UHF
Octal
RJ-11
DB-25
G4D10:
Which of these connector types is commonly used for audio signals in amateur radio stations?
RCA Phono
PL-259
BNC
Type N
G4D11:
What is the main reason to use keyed connectors over non-keyed types?
Reduced chance of damage due to incorrect mating
Prevention of use by unauthorized persons
Higher current carrying capacity
All of these choices are correct
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Color key:
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● = Review
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● = Learned
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● = Incorrect answer
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