In communications nomenclature, the band named "very high frequency covers what frequency range

1
In communications nomenclature, the band named
"very high frequency covers what frequency
range?

• 30 MHz to 300 MHz

2
Express 2.182 MHz in kilohertz.

• 2182 kHz

3
What is the typical range of VHF-FM radio
communications?

• 25 miles

4
What is a most important characteristic of the
VHF-FM frequencies?

• They are essentially line-of-sight frequencies.

5
What is the difference between Simplex and Duplex
circuits.

• A Simplex circuit uses the same frequency for
  transmitting and receiving, therefore you can
  only do one at a time.
• Duplex circuits use one frequency for
  transmitting and another for receiving (ie
  Marine Operator channels).

6
Skip is most often found within what range of
frequencies?

• Medium and High Frequency band, especially 2-4
  MHz.

7
What is the MF Distress and Calling Frequency?

• 2182 kHz.

8
What is the VHF-FM marine Calling and Distress
frequency?

• Channel 16 (156.800 MHz)

9
The bridge tender will likely be listening on
what channel?

• Channel 13 (156.650 MHz) (Ref. 1.H.3.)

10
After calling a commercial vessel on channel 16.
what are some of the working channels you could
switch to?

• See Channel listing in paragraph 1.H.3.

11
Why is Class D Citizens Band unreliable for
boaters?

• It does not provide for such things as a required
  radio watch, broadcast of emergency information
  or direct communication with the Coast Guard.

12
What is a radio repeater?

• It is a transmitter/receiver site located at a
  high elevation which will receive signals on one
  frequency and retransmit them on another. It
  will allow wide area coverage from short range
  radios and, if so equipped, the capability for
  interconnection to data and telephone networks.

13
List the three priority functions of the marine
radiotelephone system in priority order.

• The safety function,
• The operational function, and
• The business function.

14
A radio station may not be operated except under
and in accordance with a valid station
authorization issued by whom?

• Federal Communications Commission.

15
All ship radiotelephone stations using the 2-4
MHz marine band must maintain an efficient
listening watch on which frequency?

• 2182 kHz (Ref. 2.D.1.a.)

16
An efficient listening watch is required on which
VHF channel and under what conditions?

• Channel 16, or alternate Channel 9, for
  recreational vessels when the radio is turned on
  and not in use for other communications.

17
When a station does not respond to a call sent
three times at intervals of two minutes, you are
permitted to call again after how many minutes
have passed?

• 15 Minutes

18
What is the procedure to initiate a call on a
ship's radiotelephone?

• LISTEN, then
• Call on the calling channel. Establish contact
  and move to an appropriate working channel.

19
Is it always necessary to establish contact on a
calling channel?

• No, not if a working channel is monitored.

20
What is the PRIMARY purpose of intership
frequencies?

• Safety communications

21
After two ships have established contact on an
intership working frequency, FCC regulations
limit the maximum duration of the communication
to what period of time?

• Three minutes

22
All transmitter adjustments to marine
radiotelephone transmitters must be performed by
or under the immediate supervision of a person
holding which class of license?

• A General Radiotelephone License

23
The secrecy provision of the communications
regulations applies to all types of marine
communications but one. Which one is exempted?

• Distress communications

24
What are some of the violations which can cause
license revocation or fines against the licensee
or operator?

• Obscene, indecent, profane, etc. language
• Repeated violations of FCC regulations
• Using more power than authorized
• Transmission of false distress messages.

25
What are desirable voice characteristics when
speaking on a radio?

• Be distinct, no monotone, etc.

26
Under what conditions are radio checks with the
Coast Guard allowed on Channel 16?

• They are forbidden.

27
Use of VHF-FM Channel 16 is restricted to what
type of communications?

• Distress,
• Safety, and
• Calling.

28
Which 2-4 MHz working frequency can be used in
all areas?

• 2638 kHz.

29
What should you do before calling a station?

• Listen first. Make sure your transmission will
  not interfere with another conversation already
  in progress.

30
Are the calling procedures on the 2-3 MHz band
the same as on the VHF-FM marine band?

• Yes, only the frequencies are different. The
  procedures remain the same.

31
At the end of your call to establish radio
contact with another vessel, what proword should
be used?

• OVER

32
When calling another station, what are the time
limitations on the initial call and any
additional calls?

• Transmission limit of 30 seconds may be sent
  three times at 2 minute intervals.

33
Who may conduct radio checks with the Coast Guard?

• Only FCC representatives and qualified
  technicians.

34
Who may answer requests for a radio check?

• The station to whom the request is directed.

35
Who has the responsibility for issuing a distress
call?

• The person responsible for the unit in distress.

36
Name the three words, any one of which may be
used to precede a broadcast to any and all
stations?

• MAYDAY,
• PAN PAN, and
• SECURITY.

37
Brief navigational instructions may be given on
Channel 16 under what conditions?

• During a distress which you are handling.

38
If you hear a distress broadcast and the nearby
Coast Guard station does not answer, what action
should you take?

• You should acknowledge the call.

39
The vessel in distress, or the station in control
of distress communications, may impose silence on
any station that interferes by transmitting what?

• SEELONCE MAYDAY.

40
When a MAYDAY situation is in progress, any other
stationwhich believes silence is essential
transmits what?

• SEELONCE DISTRESS.

41
What is an Urgency signal?

• PAN PAN spoken three times.

42
What precedes an announcement of a message to be
transmitted concerning the safety of navigation?

• SECURITY spoken three times.

43
What is the priority order for distress, urgency,
and safety messages?

• MAYDAY (Distress),
• PAN PAN (Urgency), and
• SECURITY (Safety).

44
Can an individual radio used on a vessel facility
be accounted for in any other facility?

• No.

45
What are the various types of Auxiliary Radio
Facilities?

• Fixed land, land mobile, and RDF.

46
Can a portable radio qualify as a facility?

• Yes, if special conditions are met.

47
All operations on Coast Guard frequencies by
Auxiliarists must be conducted in accordance with
rules and regulations promulgated by whom?

• The District Commander.

48
Vessel facility radios are considered government
stations under what conditions?

• When operated under orders

49
Can land mobile radio facilities engage in
personal business on their radio facilities?

• No.

50
Under what conditions may fixed land, land
mobile, and direction finding facilities be
activated?

• (1) On an ordered or scheduled mission.
• (2) Required to handle valid DISTRESS traffic.
• (3) Conducting technical tests to determine a
  facility's capability i.e. facility inspection.
• (4) Required to contact a Coast Guard unit to
  determine if Auxiliary assistance is required.

51
What training is required for an Auxiliarist to
be able to use a vessel facility radio?

• Qualification as CREWMAN or completion of AUXCOM
  and any additional district required training.

52
What are the requirements for VHF-FM RDF stations
with respect to its location and capabilities?

• It must be near a patrol area and meet specific
  requirements.

53
How should LOPs from a direction finding station
be exchanged?

• Via non-marine channels or landline.

54
Who can inspect radio equipped Auxiliary aircraft
facilities?

• An aircraft inspector and reported on Form
  CG-2736B.

55
What are the conditions under which a CB radio
may be utilized?

• When no other method is available.

56
Under what circumstances may an Auxiliarist
contact the FCC about Auxiliary radio problems?

• None
• Auxiliary FCC problems are referred to DVC-OT
  through the chain-of-command.

57
Telling the FCC you are an Auxiliary member or
your radio will be used for Auxiliary work can
help in what manner?

• It won't Confusion and delays will probably
  result.

58
Vessel and aircraft facilities must be capable of
operations on which VHF-FM marine channels?

• Channels 6, 16, 22A and a Group working
  channel.

59
Why is the knowledge of message types and formats
important for an Auxiliarist?

• A knowledge of message types and formats is
  necessary in order to be able to prepare the
  proper type of message for a given situation.

60
Communications concerning the actual movement of
vessels and aircraft are what type of
communications?

• OPERATIONAL communications.

61
What is the key responsibility of a message
originator?

• Determining if a message is necessary.

62
What are the major parts of a message?

• Heading,
• Text, and
• Ending.

63
What are the various message precedence and their
corresponding abbreviations?

• Z-Flash
• O-immediate
• P-Priority
• R-Routine.

64
The entire Coast Guard communications system
operates on what time?

• Coordinated Universal Time (UTC), previously
  Greenwich Mean Time (GMT)

65
What techniques should be utilized when using a
microphone?

• Listen before transmitting,
• Speak clearly and
• Distinctly. Avoid extremes of voice pitch, etc.

66
How are the various numerals spoken?

• 0 Zero
• 1 Wun
• 2 Too
• 3 Thuh-ree
• 4 Fo-wer
• 5 Fi-yiv
• 6 Six
• 7 Seven
• 8 Ate
• 9 Niner

67
How should the speed 25 knots be spoken?

• TWEN-TY FI-YIV KNOTS.

68
What is the proword that numerals follow?

• FIGURES.

69
What are the meanings of the prowords ROGER and
OUT?

• ROGER I received your last transmission
  satisfactorily
• OUT End of transmission, no reply required.

70
What is the proword that indicates a reply is
necessary?

• OVER

71
The proword WILCO indicates what?

• I received your message. I understand it and
  will comply.

72
You are transmitting a message by radiotelephone
and before you have said OVER or OUT you discover
that you made an error. What is the proper
procedure to correct it?

• Transmit the word CORRECTION, return to the last
  word or phrase sent correctly, make the
  correction and proceed with the rest of the
  message.

73
During the transmission of a message and prior to
the transmission of the ending proword OVER or
OUT the message can be canceled by the use of
what proword and statement?

• DISREGARD THIS TRANSMISSION.

74
What is the abbreviation for a Coast Guard Loran
station?

• CGLORSTA

75
Safety patrols usually require a minimum of two
messages what are they?

• Start of patrol and end of patrol.

76
Who determines the address of a message?

• The originator determines the address and is the
  only one who may change the address.

77
When operating as a government station, what is
the minimum log requirement?"

• A bound ledger with all messages recorded therein.

78
What are the three sections of a log?

• Log Section,
• Message File Section, and
• the Reference Section.

79
What are some suggested items to be kept in the
reference file section?

• Telephone numbers,
• SAR report forms,
• Rosters, etc.

80
When is an Auxiliary facility required to
maintain a radio log?

• All Auxiliary facilities are required to maintain
  a radio log.
• Mobile facilities (vessels, aircraft, land mobile
  facilities under the direct control of a fixed
  land Coast Guard or Auxiliary station are exempt.

81
Since the Coast Guard is a government agency the
frequencies it uses are assigned by whom?

• The National Telecommunications and Information
  Administration (NTIA) through the Interdepartment
  Radio Advisory Committee (IRAC)

82
The Coast Guard makes three types of all stations
broadcasts. What are they?

• Urgency Broadcasts,
• Safety Broadcasts, and
• Scheduled Broadcasts.

83
Why should an Auxiliarist have a knowledge of
signaling methods?

• To be able to communicate when radio equipment
  cannot.

84
Define at the dip .

• A signal at 1/2 the full extent of the halyard.

85
What is sound signaling?

• Morse signals by siren,
• Foghorn,
• Whistle,
• Horn, etc.

86
Various methods of signaling may be used, what
are they?

• Flag,
• Light,
• Sound, and
• Semaphore.

87
What is the relationship in Morse signaling of
dots, dashes, and spaces?

• A dot is taken as the unit.
• A dash is equivalent to three units.
• The space of time between any two elements of a
  symbol is equivalent to one unit
• between two complete symbols is equivalent to
  three units and between
• two words or groups is equivalent to five units.
  
• Accuracy depends upon this spacing being adhered
  to regardless of sending speed.

88
A Morse ALPHA consists of what?

• A dot followed by a dash.

89
How are flag hoists read?

• Top to bottom and
• Outboard to inboard.

90
What do BRAVO, OSCAR, and NOVEMBER CHARLIE
signals mean?

• BRAVO - red burgee - handling dangerous cargo
• OSCAR - red/yellow flag - man overboard
• NOVEMBER CHARLIE - blue/white checkerboard flag
  and blue/white/red/white/blue horizontal stripe
  flag - in distress and require assistance.

91
Name five types of distress signals.

• a. A gun or other explosive signal fired at
  intervals of about 1 minute.
• b. A continuous sounding of any fog-signal
  apparatus.
• c. Rockets or shells throwing red stars, fired
  one at a time at short intervals.
• d. A signal made by radiotelegraphy or by any
  other signaling method consisting of the group S
  O S in the Morse Code.
• e. Signal made by radiotelephony consisting of
  the word MAYDAY
• f. The International Code Signal of distress
  indicated by letters .
• g. A signal consisting of a square flag having
  above or below it a ball or anything resembling a
  ball.
• h. Flames on the vessel (as from a burning tar
  barrel, oil barrel, etc.).
• i. A rocket parachute flare showing a red light.
• j. International orange rectangle with a black
  square and circle.

92
What precautions should be taken when making
surface to air signals?

• Wear clothing which is in contrast to the
  background.