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SWE > Communications > Flashcards

Communications Flashcards

1
Q

VHF Frequency spectrum?

A

30-300MHz

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2
Q

HF Frequency spectrum?

A

3-30MHz

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3
Q

UHF Frequency spectrum?

A

300-3000MHz

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4
Q

Ch 16 Freq?

A

156.8MHz

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5
Q

Ch 70 Freq?

A

156.525 MHz

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6
Q

Beadwindow 1?

A

Position

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7
Q

Beadwindow 2?

A

Capabilities

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8
Q

Beadwindow 3?

A

Operations

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9
Q

Beadwindow 4?

A

Electronic

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10
Q

Beadwindow 5?

A

Personnel

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11
Q

Beadwindow 6?

A

COMSEC

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12
Q

Beadwindow 7

A

Wrong circuit

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13
Q

DAMA?

A

Demand Assigned Multiple Access

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14
Q

Retention of Afloat/Ashore comms logs?

A

Afloat- 90 days
Ashore- 6 months

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15
Q

COTHEN meaning?

A

Cellular Over the Horizon Enforcement Network

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16
Q

MF voice distress channel?

A

2182 KhZ

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17
Q

What channel do you sound activated fog systems on?

A

83A

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18
Q

ACP manual for Q and Z code?

A

ACP 131

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19
Q

Speed of service objectives?

A

“RPOZ”

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20
Q

M2000.3G?

A

CG Telecommunications Manual

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21
Q

What are the two audio playback track modes in R21?

A

Single and Multi

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22
Q

Range of a R21 RFF Antenna?

A

20 NM

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23
Q

Report of radio violations are kept for how long?

A

3 years from date of last incident.

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24
Q

What is a CG-2614A?

A

Communications log.

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25
Q

NAVTEX Frequency?

A

518 KHz

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26
Q

What are the 5 essential programs with R21?

                  “GVCOS”
A

Geo Display
V4 Workstation
Caller Manager
Operator Audio Manager
Systems Alert Manager

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27
Q

When you mute an R21 speaker how long does it remain muted?

A

10 seconds.

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28
Q

How long will guard circuit remain yellow after transmission?

A

5 seconds

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29
Q

When operator is transmitting, what color is present?

A

Red when transmitting.

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30
Q

Which piece of equipment uses KGV-11?

A

DAMA

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31
Q

Which antenna is omni directional?

A

Whip

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32
Q

Which antenna is uni directional?

A

Fan

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33
Q

What is nomenclature of memory card stored in SKL called?

A

KOV-21

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34
Q

NAVTEX message must not exceed?

A

40 minutes

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35
Q

CG units shall use what encryption as the primary encryption for all tactical communications?

A

Advanced Encryption Standard

              AES (256 bit)
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36
Q

KEYMAT effective period?

A

First working Monday of the month at 1130Z

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37
Q

Keyset is effective at?

A

1800Z on first working Monday of the month.

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38
Q

Report of violation of Radio Regulations or Comms Instructions form?

A

CG-2861A

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39
Q

How long do you retain audio files?

A

30 days

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40
Q

JSIR retention period?

A

3 years

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41
Q

Record messages retention period?

A

Retained at CAMS for 90 days.

42
Q

Record message tracer file retention period?

A

6 months

43
Q

High precedence message test results retention period?

A

1 year

44
Q

SSIC GENERAL files retention?

A

3 years

45
Q

SSIC OPERATIONAL files retention?

A

6 months

46
Q

All sectors shall monitor their broadcasts for quality on a random basis at least?

A

Weekly

47
Q

Generators must be capable of operating for how long?

A

Minimum period of 72 hours without refueling.

48
Q

Emergency power supply shall be capable of automatic operation within?

A

60 seconds after failure of commercial power.

49
Q

UPS shall provide power for at least?

A

30 minutes.

50
Q

When unit experiences comms difficulties what shall be submitted?

A

COMSPOT report

51
Q

What is CAD?

A

121.5 MHz

52
Q

What is MAD?

A

243.0 MHz

53
Q

CG aircraft shall establish comms guard within?

A

5 min after takeoff.

54
Q

Fixed wing guard requirements?

A

Flight ops status 30 min, posn report every 60 min.

55
Q

Rotary wing guard requirements?

A

Flight ops status every 15 min, posn report every 30 min.

56
Q

NAVTEX operational requirements are found where?

A

IMO MSC Circular 416

57
Q

Broadcasts on Ch 16 shall not exceed?

A

1 minute.

58
Q

Category I EPIRB is?

A

Automatically activated.

59
Q

Category II EPIRB is?

A

Manually activated.

60
Q

Which EPIRB is recognized by GMDSS?

A

Category I EPIRB

61
Q

SART signal appears as a distinctive line of?

A

12 equally spaced blips on a radar screen

62
Q

SART operates in what frequency band?

A

9200-9500 MHz band

63
Q

What annex for an OPAREA plan covers communications?

A

ANNEX K

64
Q

Who regulates non federal use of the radio spectrum?

A

FCC

65
Q

Who regulates federal use of the radio spectrum?

A

NTIA

66
Q

INMARSAT C is what?

A

2 way, packet data service, installed on cutters.

67
Q

What is CH 81A used for?

A

Interagency response channel for pollution response OPS.

68
Q

Information that is classified or SBU must not be transmitted on?

A

R21 system.

69
Q

Sector Commanders must designate a minimum of how many R21 system supervisors?

A

2

70
Q

Who is responsible for NAVTEX broadcasts?

A

COMMCOM, SCC Guam and San Juan

71
Q

HF DSC Frequency?

A

4207.5Khz

72
Q

Mobile units deploying for less than 72 hours are?

A

Not required to submit COMMSHIFT record messages unless shifting to a US NAVY unit.

73
Q

Detectable range for SART?

A

Air- 40NM / Surface- 10NM

74
Q

Air to Air use of VHF-FM in the 156-162 mhz range maritime mobile bands are?

A

NOT permitted unless no other forms of comms exist or for SAR.

75
Q

Aircraft transmitting above 1000 FT?

A

Must NOT transmit on VHF-FM channels.

76
Q

What is exception for aircraft operating above 1000 FT on VHF channels?

A

Recon aircraft participating in ice breaking ops, altitude up to 1500 FT.

77
Q

CAD/AIG must have a minimum of?

A

30 addresses.

78
Q

NAVTEX coverage range?

A

Generally extends to 200NM

79
Q

NAVTEX message priorities?

A

Vital, Important, Routine.

80
Q

Speed of Service Objectives- FLASH (Z)?

A

Fast as possible, 10 min or less.

81
Q

Speed of Service Objectives- IMMEDIATE (O)?

A

30 Min

82
Q

Speed of Service Objectives- PRIORITY(P)?

A

3 Hours.

83
Q

Speed of Service Objectives- ROUTINE (R)?

A

6 Hrs or next business day.

84
Q

How many frequency presets are on W3?

A

20

85
Q

What is the frequency of a GSE-924?

A

1.6-29.999Mhz

86
Q

MF frequency spectrum?

A

300 Khz- 3000 Khz

87
Q

How many characters in a PLAD?

A

55 including office code limits.

88
Q

How many SSIC categories are there?

A

14

89
Q

Message lines of text are limited to?

A

69 characters.

90
Q

IFF Mode 3A, 7600 code means?

A

Failure in radio comms for MIL/CIV aircraft.

91
Q

What creates the signal for a radio?

A

Oscillator.

92
Q

R21 audio file retention period?

A

30 days.

93
Q

What channel is used to relieve congestion on CH 16?

A

Ch 9/ 156.45 Mhz

94
Q

Voice distress frequency in Alaska?

A

4125 Khz

95
Q

How many transceiver sites make up the NAIS system?

A

134 VHF transceiver sites

96
Q

Aircraft HF Flight Following services- who must provide aircraft safety of flight services?

A

COMMCOM, using HF ALE through COTHEN.

97
Q

What is “SASS”?

A

Sea, Air, Shore, Secure - provided by COMMCOM

98
Q

List of SASS frequencies found where?

A

Area OPTASK Comms

99
Q

C2OIX record message classes? Which one is CG?

A

Class A, Class B, Class C - Class B is CG

100
Q

Cognizant authorities must recapitulate each CAD/AIG at least?

A

At least once per year, or when 10 modifications are issued.

101
Q

How many PLA’s must you have to make a CAD?

A

5 or more.

SWE (7 decks)

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