FCC Technician Class Exam Study Guide - 2014-2018/Subelement T2 Group B
VHF/UHF operating practices: SSB phone; FM repeater; simplex; splits and shifts; CTCSS; DTMF; tone squelch; carrier squelch; phonetics; operational problem resolution; Q signals
The Question Pool
[edit | edit source]Question 1
[edit | edit source]- What is the term used to describe an amateur station that is transmitting and receiving on the same frequency?
- A. Full duplex communication
- B. Diplex communication
- C. Simplex communication
- D. Multiplex communication
The correct answer is C.
Question 2
[edit | edit source]- What is the term used to describe the use of a sub-audible tone transmitted with normal voice audio to open the squelch of a receiver?
- A. Carrier squelch
- B. Tone burst
- C. DTMF
- D. CTCSS
The correct answer is D.
Question 3
[edit | edit source]- Which of the following describes the muting of receiver audio controlled solely by the presence or absence of an RF signal?
- A. Tone squelch
- B. Carrier squelch
- C. CTCSS
- D. Modulated carrier
The correct answer is B.
Question 4
[edit | edit source]- Which of the following common problems might cause you to be able to hear but not access a repeater even when transmitting with the proper offset?
- A. The repeater receiver may require an audio tone burst for access
- B. The repeater receiver may require a CTCSS tone for access
- C. The repeater receiver may require a DCS tone sequence for access
- D. All of these choices are correct
The correct answer is D.
Question 5
[edit | edit source]- What determines the amount of deviation of an FM (as opposed to PM) signal?
- A. Both the frequency and amplitude of the modulating signal
- B. The frequency of the modulating signal
- C. The amplitude of the modulating signal
- D. The relative phase of the modulating signal and the carrier
The correct answer is C.
Question 6
[edit | edit source]- What happens when the deviation of an FM transmitter is increased?
- A. Its signal occupies more bandwidth
- B. Its output power increases
- C. Its output power and bandwidth increases
- D. Asymmetric modulation occurs
The correct answer is A.
Question 7
[edit | edit source]- What could cause your FM signal to interfere with stations on nearby frequencies?
- A. Microphone gain too high, causing over-deviation
- B. SWR too high
- C. Incorrect CTCSS Tone
- D. All of these choices are correct
The correct answer is A.
Question 8
[edit | edit source]- Which of the following applies when two stations transmitting on the same frequency interfere with each other?
- A. Common courtesy should prevail, but no one has absolute right to an amateur frequency
- B. Whoever has the strongest signal has priority on the frequency
- C. Whoever has been on the frequency the longest has priority on the frequency
- D. The station which has the weakest signal has priority on the frequency
The correct answer is A.
Question 9
[edit | edit source]- Which of the following methods is encouraged by the FCC when identifying your station when using phone?
- A. Use of a phonetic alphabet
- B. Send your call sign in CW as well as voice
- C. Repeat your call sign three times
- D. Increase your signal to full power when identifying
Reference to 97.119(b)(2). The correct answer is A.
Question 10
[edit | edit source]- Which Q signal indicates that you are receiving interference from other stations?
- A. QRM
- B. QRN
- C. QTH
- D. QSB
The correct answer is A.
Question 11
[edit | edit source]- Which Q signal indicates that you are changing frequency?
- A. QRU
- B. QSY
- C. QSL
- D. QRZ
The correct answer B.
Question 12
[edit | edit source]- Under what circumstances should you consider communicating via simplex rather than a repeater?
- A. When the stations can communicate directly without using a repeater
- B. Only when you have an endorsement for simplex operation on your license
- C. Only when third party traffic is not being passed
- D. Only if you have simplex modulation capability
The correct answer is A.
Question 13
[edit | edit source]- Which of the following is true of the use of SSB phone in amateur bands above 50 MHz?
- A. It is permitted only by holders of a General Class or higher license
- B. It is permitted only on repeaters
- C. It is permitted in at least some portion of all the amateur bands above 50 MHz
- D. It is permitted only on when power is limited to no more than 100 watts
The correct answer is C.