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Assignment 6

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

T2B05 What determines the amount of deviation of an FM (as opposed to PM) signal?
a.
Both the frequency and amplitude of the modulating signal
c.
The amplitude of the modulating signal
b.
The frequency of the modulating signal
d.
The relative phase of the modulating signal and the carrier
 

 2. 

T2B06 What happens when the deviation of an FM transmitter is increased?
a.
Its signal occupies more bandwidth
c.
Its output power and bandwidth increases
b.
Its output power increases
d.
Asymmetric modulation occurs
 

 3. 

T4A02 How might a computer be used as part of an amateur radio station?
a.
For logging contacts and contact information
c.
For generating and decoding digital signals
b.
For sending and/or receiving CW
d.
All of these choices are correct
 

 4. 

T4B04 What is a way to enable quick access to a favorite frequency on your transceiver?
a.
Enable the CTCSS tones
c.
Disable the CTCSS tones
b.
Store the frequency in a memory channel
d.
Use the scan mode to select the desired frequency
 

 5. 

T7A07 What is meant by term “PTT”?
a.
Pre-transmission tuning to reduce transmitter harmonic emission
c.
A primary transformer tuner use to match antennas
b.
Precise tone transmissions used to limit repeater access to only certain signals
d.
The push to talk function which switches between receive and transmit
 

 6. 

T7A10 What device increases the low-power output from a handheld transceiver?
a.
A voltage divider
c.
An impedance network
b.
An RF power amplifier
d.
All of these choices are correct
 

 7. 

T8A02 What type of modulation is most commonly used for VHF packet radio transmissions?
a.
FM
c.
AM
b.
SSB
d.
Spread Spectrum
 

 8. 

T8A04 Which type of modulation is most commonly used for VHF and UHF voice repeaters?
a.
AM
c.
PSK
b.
SSB
d.
FM
 

 9. 

T8A09 What is the approximate bandwidth of a VHF repeater FM phone signal?
a.
Less than 500 Hz
c.
Between 10 and 15 kHz
b.
About 150 kHz
d.
Between 50 and 125 kHz
 

 10. 

T9A04 What is a disadvantage of the “rubber duck” antenna supplied with most handheld radio transceivers?
a.
It does not transmit or receive as effectively as a full-sized antenna
c.
If the rubber end cap is lost it will unravel very quickly
b.
It transmits a circularly polarized signal
d.
All of these choices are correct
 

 11. 

T9A07 What is a good reason not to use a “rubber duck” antenna inside your car?
a.
Signals can be significantly weaker than when it is outside of the vehicle
c.
The SWR might decrease, decreasing the signal strength
b.
It might cause your radio to overheat
d.
All of these choices are correct
 



 
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