Communications Flashcards
(101 cards)
1
Q
VHF Frequency spectrum?
A
30-300MHz
2
Q
HF Frequency spectrum?
A
3-30MHz
3
Q
UHF Frequency spectrum?
A
300-3000MHz
4
Q
Ch 16 Freq?
A
156.8MHz
5
Q
Ch 70 Freq?
A
156.525 MHz
6
Q
Beadwindow 1?
A
Position
7
Q
Beadwindow 2?
A
Capabilities
8
Q
Beadwindow 3?
A
Operations
9
Q
Beadwindow 4?
A
Electronic
10
Q
Beadwindow 5?
A
Personnel
11
Q
Beadwindow 6?
A
COMSEC
12
Q
Beadwindow 7
A
Wrong circuit
13
Q
DAMA?
A
Demand Assigned Multiple Access
14
Q
Retention of Afloat/Ashore comms logs?
A
Afloat- 90 days
Ashore- 6 months
15
Q
COTHEN meaning?
A
Cellular Over the Horizon Enforcement Network
16
Q
MF voice distress channel?
A
2182 KhZ
17
Q
What channel do you sound activated fog systems on?
A
83A
18
Q
ACP manual for Q and Z code?
A
ACP 131
19
Q
Speed of service objectives?
A
“RPOZ”
20
Q
M2000.3G?
A
CG Telecommunications Manual
21
Q
What are the two audio playback track modes in R21?
A
Single and Multi
22
Q
Range of a R21 RFF Antenna?
A
20 NM
23
Q
Report of radio violations are kept for how long?
A
3 years from date of last incident.
24
Q
What is a CG-2614A?
A
Communications log.
25
NAVTEX Frequency?
518 KHz
26
What are the 5 essential programs with R21?
“GVCOS”
Geo Display
V4 Workstation
Caller Manager
Operator Audio Manager
Systems Alert Manager
27
When you mute an R21 speaker how long does it remain muted?
10 seconds.
28
How long will guard circuit remain yellow after transmission?
5 seconds
29
When operator is transmitting, what color is present?
Red when transmitting.
30
Which piece of equipment uses KGV-11?
DAMA
31
Which antenna is omni directional?
Whip
32
Which antenna is uni directional?
Fan
33
What is nomenclature of memory card stored in SKL called?
KOV-21
34
NAVTEX message must not exceed?
40 minutes
35
CG units shall use what encryption as the primary encryption for all tactical communications?
Advanced Encryption Standard
AES (256 bit)
36
KEYMAT effective period?
First working Monday of the month at 1130Z
37
Keyset is effective at?
1800Z on first working Monday of the month.
38
Report of violation of Radio Regulations or Comms Instructions form?
CG-2861A
39
How long do you retain audio files?
30 days
40
JSIR retention period?
3 years
41
Record messages retention period?
Retained at CAMS for 90 days.
42
Record message tracer file retention period?
6 months
43
High precedence message test results retention period?
1 year
44
SSIC GENERAL files retention?
3 years
45
SSIC OPERATIONAL files retention?
6 months
46
All sectors shall monitor their broadcasts for quality on a random basis at least?
Weekly
47
Generators must be capable of operating for how long?
Minimum period of 72 hours without refueling.
48
Emergency power supply shall be capable of automatic operation within?
60 seconds after failure of commercial power.
49
UPS shall provide power for at least?
30 minutes.
50
When unit experiences comms difficulties what shall be submitted?
COMSPOT report
51
What is CAD?
121.5 MHz
52
What is MAD?
243.0 MHz
53
CG aircraft shall establish comms guard within?
5 min after takeoff.
54
Fixed wing guard requirements?
Flight ops status 30 min, posn report every 60 min.
55
Rotary wing guard requirements?
Flight ops status every 15 min, posn report every 30 min.
56
NAVTEX operational requirements are found where?
IMO MSC Circular 416
57
Broadcasts on Ch 16 shall not exceed?
1 minute.
58
Category I EPIRB is?
Automatically activated.
59
Category II EPIRB is?
Manually activated.
60
Which EPIRB is recognized by GMDSS?
Category I EPIRB
61
SART signal appears as a distinctive line of?
12 equally spaced blips on a radar screen
62
SART operates in what frequency band?
9200-9500 MHz band
63
What annex for an OPAREA plan covers communications?
ANNEX K
64
Who regulates non federal use of the radio spectrum?
FCC
65
Who regulates federal use of the radio spectrum?
NTIA
66
INMARSAT C is what?
2 way, packet data service, installed on cutters.
67
What is CH 81A used for?
Interagency response channel for pollution response OPS.
68
Information that is classified or SBU must not be transmitted on?
R21 system.
69
Sector Commanders must designate a minimum of how many R21 system supervisors?
2
70
Who is responsible for NAVTEX broadcasts?
COMMCOM, SCC Guam and San Juan
71
HF DSC Frequency?
4207.5Khz
72
Mobile units deploying for less than 72 hours are?
Not required to submit COMMSHIFT record messages unless shifting to a US NAVY unit.
73
Detectable range for SART?
Air- 40NM / Surface- 10NM
74
Air to Air use of VHF-FM in the 156-162 mhz range maritime mobile bands are?
NOT permitted unless no other forms of comms exist or for SAR.
75
Aircraft transmitting above 1000 FT?
Must NOT transmit on VHF-FM channels.
76
What is exception for aircraft operating above 1000 FT on VHF channels?
Recon aircraft participating in ice breaking ops, altitude up to 1500 FT.
77
CAD/AIG must have a minimum of?
30 addresses.
78
NAVTEX coverage range?
Generally extends to 200NM
79
NAVTEX message priorities?
Vital, Important, Routine.
80
Speed of Service Objectives- FLASH (Z)?
Fast as possible, 10 min or less.
81
Speed of Service Objectives- IMMEDIATE (O)?
30 Min
82
Speed of Service Objectives- PRIORITY(P)?
3 Hours.
83
Speed of Service Objectives- ROUTINE (R)?
6 Hrs or next business day.
84
How many frequency presets are on W3?
20
85
What is the frequency of a GSE-924?
1.6-29.999Mhz
86
MF frequency spectrum?
300 Khz- 3000 Khz
87
How many characters in a PLAD?
55 including office code limits.
88
How many SSIC categories are there?
14
89
Message lines of text are limited to?
69 characters.
90
IFF Mode 3A, 7600 code means?
Failure in radio comms for MIL/CIV aircraft.
91
What creates the signal for a radio?
Oscillator.
92
R21 audio file retention period?
30 days.
93
What channel is used to relieve congestion on CH 16?
Ch 9/ 156.45 Mhz
94
Voice distress frequency in Alaska?
4125 Khz
95
How many transceiver sites make up the NAIS system?
134 VHF transceiver sites
96
Aircraft HF Flight Following services- who must provide aircraft safety of flight services?
COMMCOM, using HF ALE through COTHEN.
97
What is “SASS”?
Sea, Air, Shore, Secure - provided by COMMCOM
98
List of SASS frequencies found where?
Area OPTASK Comms
99
C2OIX record message classes? Which one is CG?
Class A, Class B, Class C - Class B is CG
100
Cognizant authorities must recapitulate each CAD/AIG at least?
At least once per year, or when 10 modifications are issued.
101
How many PLA’s must you have to make a CAD?
5 or more.
