Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

HAM Technician class > Ham Tech Class - Sets 2 & 3 > Flashcards

Ham Tech Class - Sets 2 & 3 Flashcards

1
Q

Which of the following is a common repeater frequency offset in the 2 meter band?

A

B. Plus or minus 600 kHz - T2A01 (B)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the national calling frequency for FM simplex operations in the 2 meter band?

A

A. 146.520 MHz - T2A02 (A)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is a common repeater frequency offset in the 70 cm band?

A

A. Plus or minus 5 MHz - T2A03 (A)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is an appropriate way to call another station on a repeater if you know the other station’s call sign?

A

B. Say the station’s call sign, then identify with your call sign - T2A04 (B)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

How should you respond to a station calling CQ?

A

C. Transmit the other station’s call sign followed by your call sign - T2A05 (C)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Which of the following is required when making on-the-air test transmissions?

A

A. Identify the transmitting station - T2A06 (A)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is meant by “repeater offset?”

A

A. The difference between a repeater’s transmit frequency and its receive frequency - T2A07 (A)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the meaning of the procedural signal “CQ”?

A

D. Calling any station - T2A08 (D)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What brief statement indicates that you are listening on a repeater and looking for a contact?

A

B. Your call sign - T2A09 (B)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is a band plan, beyond the privileges established by the FCC?

A

A. A voluntary guideline for using different modes or activities within an amateur band - T2A10 (A)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What term describes an amateur station that is transmitting and receiving on the same frequency?

A

C. Simplex - T2A11 (C)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Which of the following is a guideline when choosing an operating frequency for calling CQ?

A

D. All of these choices are correct (A. Listen first to be sure that no one else is using the frequency, B. Ask if the frequency is in use, C. Make sure you are in your assigned band) - T2A12 (D)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the most common use of the “reverse split” function of a VHF/UHF transceiver?

A

C. Listen on a repeater’s input frequency - T2B01 (C)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What term describes the use of a sub-audible tone transmitted along with normal voice audio to open the squelch of a receiver?

A

D. CTCSS - T2B02 (D)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

If a station is not strong enough to keep a repeater’s receiver squelch open, which of the following might allow you to receive the station’s signal?

A

B. Listen on the repeater input frequency - T2B03 (B)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Which of the following could be the reason you are unable to access a repeater whose output you can hear?

A

D. All of these choices are correct (A. Improper transceiver offset, B. The repeater may require a proper CTCSS tone from your transceiver, C. The repeater may require a proper DCS tone from your transceiver) - T2B04 (D)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What might be the problem if a repeater user says your transmissions are breaking up on voice peaks?

A

C. You are talking too loudly - T2B05 (C)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What type of tones are used to control repeaters linked by the Internet Relay Linking Project (IRLP) protocol?

A

A. DTMF - T2B06 (A)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

How can you join a digital repeater’s “talk group”?

A

C. Program your radio with the group’s ID or code - T2B07 (C)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Which of the following applies when two stations transmitting on the same frequency interfere with each other?

A

A. Common courtesy should prevail, but no one has absolute right to an amateur frequency - T2B08 (A)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What is a “talk group” on a DMR digital repeater?

A

B. A way for groups of users to share a channel at different times without being heard by other users on the channel - T2B09 (B)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Which Q signal indicates that you are receiving interference from other stations?

A

A. QRM - T2B10 (A)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Which Q signal indicates that you are changing frequency?

A

B. QSY - T2B11 (B)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Why are simplex channels designated in the VHF/UHF band plans?

A

A. So that stations within mutual communications range can communicate without tying up a repeater - T2B12 (A)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Where may SSB phone be used in amateur bands above 50 MHz?

A

C. In at least some portion of all these bands - T2B13 (C)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Which of the following describes a linked repeater network?

A

A. A network of repeaters where signals received by one repeater are repeated by all the repeaters - T2B14 (A)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

When do the FCC rules NOT apply to the operation of an amateur station?

A

D. Never, FCC rules always apply - T2C01 (D) [97.103(a)]

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

What is meant by the term “NCS” used in net operation?

A

B. Net Control Station - T2C02 (B)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

What should be done when using voice modes to ensure that voice messages containing unusual words are received correctly?

A

C. Spell the words using a standard phonetic alphabet - T2C03 (C)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

What do RACES and ARES have in common?

A

D. Both organizations may provide communications during emergencies - T2C04 (D)

31
Q

What does the term “traffic” refer to in net operation?

A

A. Formal messages exchanged by net stations - T2C05 (A)

32
Q

Which of the following is an accepted practice to get the immediate attention of a net control station when reporting an emergency?

A

C. Begin your transmission by saying “Priority” or “Emergency” followed by your call sign - T2C06 (C)

33
Q

Which of the following is an accepted practice for an amateur operator who has checked into a net?

A

C. Remain on frequency without transmitting until asked to do so by the net control station - T2C07 (C)

34
Q

Which of the following is a characteristic of good traffic handling?

A

A. Passing messages exactly as received - T2C08 (A)

35
Q

Are amateur station control operators ever permitted to operate outside the frequency privileges of their license class?

A

D. Yes, but only if necessary in situations involving the immediate safety of human life or protection of property - T2C09 (D)

36
Q

What information is contained in the preamble of a formal traffic message?

A

D. The information needed to track the message - T2C10 (D)

37
Q

What is meant by the term “check,” in reference to a formal traffic message?

A

A. The number of words or word equivalents in the text portion of the message - T2C11 (A)

38
Q

What is the Amateur Radio Emergency Service (ARES)?

A

A. Licensed amateurs who have voluntarily registered their qualifications and equipment for communications duty in the public service - T2C12 (A)

39
Q

What should you do if another operator reports that your station’s 2 meter signals were strong just a moment ago, but now they are weak or distorted?

A

D. Try moving a few feet or changing the direction of your antenna if possible, as reflections may be causing multi-path distortion - T3A01 (D)

40
Q

Why might the range of VHF and UHF signals be greater in the winter?

A

B. Less absorption by vegetation - T3A02 (B)

41
Q

What antenna polarization is normally used for long-distance weak-signal CW and SSB contacts using the VHF and UHF bands?

A

C. Horizontal - T3A03 (C)

42
Q

What can happen if the antennas at opposite ends of a VHF or UHF line of sight radio link are not using the same polarization?

A

B. Signals could be significantly weaker - T3A04 (B)

43
Q

When using a directional antenna, how might your station be able to access a distant repeater if buildings or obstructions are blocking the direct line of sight path?

A

B. Try to find a path that reflects signals to the repeater - T3A05 (B)

44
Q

What term is commonly used to describe the rapid fluttering sound sometimes heard from mobile stations that are moving while transmitting?

A

B. Picket fencing - T3A06 (B)

45
Q

What type of wave carries radio signals between transmitting and receiving stations?

A

A. Electromagnetic - T3A07 (A)

46
Q

Which of the following is a likely cause of irregular fading of signals received by ionospheric reflection?

A

C. Random combining of signals arriving via different paths - T3A08 (C)

47
Q

Which of the following results from the fact that skip signals refracted from the ionosphere are elliptically polarized?

A

B. Either vertically or horizontally polarized antennas may be used for transmission or reception - T3A09 (B)

48
Q

What may occur if data signals arrive via multiple paths?

A

D. Error rates are likely to increase - T3A10 (D)

49
Q

Which part of the atmosphere enables the propagation of radio signals around the world?

A

C. The ionosphere - T3A11 (C)

50
Q

How might fog and light rain affect radio range on the 10 meter and 6 meter bands?

A

B. Fog and light rain will have little effect on these bands - T3A12 (B)

51
Q

What weather condition would decrease range at microwave frequencies?

A

C. Precipitation - T3A13 (C)

52
Q

What is the name for the distance a radio wave travels during one complete cycle?

A

C. Wavelength - T3B01 (C)

53
Q

What property of a radio wave is used to describe its polarization?

A

A. The orientation of the electric field - T3B02 (A)

54
Q

What are the two components of a radio wave?

A

C. Electric and magnetic fields - T3B03 (C)

55
Q

How fast does a radio wave travel through free space?

A

A. At the speed of light - T3B04 (A)

56
Q

How does the wavelength of a radio wave relate to its frequency?

A

B. The wavelength gets shorter as the frequency increases - T3B05 (B)

57
Q

What is the formula for converting frequency to approximate wavelength in meters?

A

D. Wavelength in meters equals 300 divided by frequency in megahertz - T3B06 (D)

58
Q

What property of radio waves is often used to identify the different frequency bands?

A

A. The approximate wavelength - T3B07 (A)

59
Q

What are the frequency limits of the VHF spectrum?

A

B. 30 to 300 MHz - T3B08 (B)

60
Q

What are the frequency limits of the UHF spectrum?

A

D. 300 to 3000 MHz - T3B09 (D)

61
Q

What frequency range is referred to as HF?

A

C. 3 to 30 MHz - T3B10 (C)

62
Q

What is the approximate velocity of a radio wave as it travels through free space?

A

B. 300,000,000 meters per second - T3B11 (B)

63
Q

Why are direct (not via a repeater) UHF signals rarely heard from stations outside your local coverage area?

A

C. UHF signals are usually not reflected by the ionosphere - T3C01 (C)

64
Q

Which of the following is an advantage of HF vs VHF and higher frequencies?

A

C. Long distance ionospheric propagation is far more common on HF - T3C02 (C)

65
Q

What is a characteristic of VHF signals received via auroral reflection?

A

B. The signals exhibit rapid fluctuations of strength and often sound distorted - T3C03 (B)

66
Q

Which of the following propagation types is most commonly associated with occasional strong over-the-horizon signals on the 10, 6, and 2 meter bands?

A

B. Sporadic E - T3C04 (B)

67
Q

Which of the following effects might cause radio signals to be heard despite obstructions between the transmitting and receiving stations?

A

A. Knife-edge diffraction - T3C05 (A)

68
Q

What mode is responsible for allowing over-the-horizon VHF and UHF communications to ranges of approximately 300 miles on a regular basis?

A

A. Tropospheric ducting - T3C06 (A)

69
Q

What band is best suited for communicating via meteor scatter?

A

B. 6 meter band - T3C07 (B)

70
Q

What causes tropospheric ducting?

A

D. Temperature inversions in the atmosphere - T3C08 (D)

71
Q

What is generally the best time for long-distance 10 meter band propagation via the F layer?

A

A. From dawn to shortly after sunset during periods of high sunspot activity - T3C09 (A)

72
Q

Which of the following bands may provide long distance communications during the peak of the sunspot cycle?

A

A. 6 or 10 meter bands - T3C10 (A)

73
Q

Why do VHF and UHF radio signals usually travel somewhat farther than the visual line of sight distance between two stations?

A

C. The Earth seems less curved to radio waves than to light - T3C11 (C)

HAM Technician class (7 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions