SUBELEMENT T5  –  Station setup and operation - 4 exam questions – 4 groups
 
T5A Station hookup – microphone, speaker, headphones, filters, power source, connecting a computer.
 
What does a microphone connect to in a basic amateur radio station?
The transmitter
 
Which piece of station equipment converts electrical signals to sound waves?
Speaker
 
What is the term used to describe what happens when a microphone and speaker are too close to each other?
Audio feedback
 
What could you use in place of a regular speaker to help you copy signals in a noisy area?
A set of headphones
 
What is a good reason for using a regulated power supply for communications equipment?
To protect equipment from voltage fluctuations
 
Where must a filter be installed to reduce spurious emissions?
At the transmitter
 
What type of filter should be connected to a TV receiver as the first step in trying to prevent RF overload from a nearby 2-meter transmitter?
Notch filter
 
What is connected between the transceiver and computer terminal in a packet radio station?
Terminal Node Controller
 
Which of these items is not required for a packet radio station?
Microphone
 
What can be used to connect a radio with a computer for data transmission?
Sound Card
 

T5B Operating controls.
 
What may happen if a transmitter is operated with the microphone gain set too high?
It may cause the signal to become distorted and unreadable
 
What kind of information may a VHF/UHF transceiver be capable of storing in memory?
Transmit and receive operating frequency.
CTCSS tone frequency.
Transmit power level.
All of these answers are correct:
 
What is one way to select a frequency on which to operate?
Use the keypad or VFO knob to enter the correct frequency
 
What is the purpose of the squelch control on a transceiver?
It is used to quiet noise when no signal is being received
 
What is a way to enable quick access to a favorite frequency on your transceiver?
Store the frequency in a memory channel
 
What might you do to improve the situation if the station you are listening to is hard to copy because of ignition noise interference?
Turn on the noise blanker
 
What is the purpose of the buttons labeled "up" and "down" on many microphones?
To allow easy frequency or memory selection
 
What is the purpose of the "shift" control found on many VHF/UHF transceivers?
Adjust the offset between transmit and receive frequency
 
What does RIT mean?
Receiver Incremental Tuning
 
What is the purpose of the "step" menu function found on many transceivers?
It sets the tuning rate when changing frequencies
 
What is the purpose of the "function" or "F" key found on many transceivers?
It selects an alternate action for some control buttons
 
 
T5C Repeaters: repeater and simple operating techniques, offsets, selective squelch, open and closed repeaters, linked repeaters.
 
What is one purpose of a repeater?
To extend the usable range of mobile and low-power stations
 
What is a courtesy tone?
A tone used to indicate when a transmission is complete
 
Which of the following is the most important information to know before using a repeater?
The repeater input and output frequencies
 
Why should you pause briefly between transmissions when using a repeater?
To listen for anyone wanting to break in
 
What is the most common input/output frequency offset for repeaters in the 2-meter band?
0.6 MHz
 
What is the most common input/output frequency offset for repeaters in the 70-centimeter band?
5.0 MHz
 
What is meant by the terms input and output frequency when referring to repeater operations?
The repeater receives on one frequency and transmits on another
 
What is the meaning of the term simplex operation?
Transmitting and receiving on the same frequency
 
What is a reason to use simplex instead of a repeater?
To avoid tying up the repeater when direct contact is possible
 
How might you find out if you could communicate with a station using simplex instead of a repeater?
Check the repeater input frequency to see if you can hear the other station
 
What is the term for a series of repeaters that can be connected to one another to provide users with a wider coverage?
Linked repeater system
 
What is the main reason repeaters should be approved by the local frequency coordinator before being installed?
Coordination minimizes interference between repeaters and makes the most efficient use of available frequencies
 
Which of the following statements regarding use of repeaters is true?
Access to any repeater may be limited by the repeater owner
 
What term is used to describe a repeater when use is restricted to the members of a club or group?
A closed repeater
 
 
T5D Recognition and correction of problems, symptoms of overload and overdrive, distortion, over and under modulation, RF feedback, off frequency signals, fading and noise, problems with digital communications links.
 
What is meant by fundamental overload in reference to a receiver?
Interference caused by very strong signals from a nearby source
 
Which of the following is NOT a cause of radio frequency interference?
Doppler shift
 
What is the most likely cause of telephone interference from a nearby transmitter?
The transmitter's signals are causing the telephone to act like a radio receiver
 
What is a logical first step when attempting to cure a radio frequency interference problem in a nearby telephone?
Install an RF filter at the telephone
 
What should you do first if someone tells you that your transmissions are interfering with their TV reception?
Make sure that your station is operating properly and that it does not cause interference to your own television
 
Which of the following may be useful in correcting a radio frequency interference problem?
Snap-on ferrite chokes.
Low-pass and high-pass filters.
All of these answers are correct:
 
What is the proper course of action to take when a neighbor reports that your radio signals are interfering with something in his home?
Check your station and make sure it meets the standards of good amateur practice

What should you do if a "Part 15" device in your neighbor's home is causing harmful interference to your amateur station?
Work with your neighbor to identify the offending device.
Politely inform you neighbor about the rules that require him to stop using the device if it causes interference.
Check your station and make sure it meets the standards of good amateur practice.
All of these answers are correct:
 
What could be happening if another operator tells you he is hearing a variable high-pitched whine on the signals from your mobile transmitter?
The power wiring for your radio is picking up noise from the vehicle's electrical system
 
What may be the problem if another operator reports that your SSB signal is very garbled and breaks up?
RF energy may be getting into the microphone circuit and causing feedback
 
What might be the problem if you receive a report that your signal through the repeater is distorted or weak?
Your transmitter may be slightly off frequency.
Your batteries may be running low.
You could be in a bad location.
All of these answers are correct:
 
What is one of the reasons to use digital signals instead of analog signals to communicate with another station?
Many digital systems can automatically correct errors caused by noise and interference