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ESWS Board > Comms > Flashcards

Comms Flashcards

1
Q

What is the frequency range between 3-30MHz?

A

High Frequency (HF)

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2
Q

What is the frequency range between 30-300MHz?

A

Very High Frequency (VHF)

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3
Q

What is the frequency range between 300MHz-3GHz?

A

Ultra High Frequency

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4
Q

What is the frequency range between 3GHz-30GHz?

A

Super High Frequency (SHF)

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5
Q

What is the frequency range between 30-300GHz?

A

Extremely High Frequency (EHF)

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6
Q

What is an example of an HF system?

A

URC-109

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7
Q

What is are the examples of VHF systems?

A

SRC-54, and GRC-211

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8
Q

What are the examples of of UHF?

A

WSC-3, and URC-93

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9
Q

What are the examples of SHF systems?

A

WSC-6, and USC-69

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10
Q

What is an example of an EHF system?

A

USC-38

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11
Q

The capabilities of URC-109 include long haul transmission which involves what distance?

A

500 NM

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12
Q

URC-109 equipment includes how many transmitters?

A

23

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13
Q

Where is the location of the URC-109 transmitters?

A

Radio Transceiver Room (04-79-3-C)

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14
Q

Which VHF system is used for line of sight (LOS) communications and is used for Marine and LCAC evolution?

A

SRC-54(SINGARS)

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15
Q

The SRC-54 has how many transceiver radios are located in in the radio transceiver room?

A

16 Transceiver radios

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16
Q

Which VHF system is used for International Air Distress (IAD) 121.5 MHz?

A

GRC-211

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17
Q

How many transceiver radios are used by GRC-211?

A

2 transceiver radios located in Transceiver Room

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18
Q

What is the space number for the transceiver room?

A

04-79-3-C

19
Q

Which UHF system has line of sight (LOS) capabilities which is roughly 30 NM?

A

WSC-3

20
Q

What has unlimited range as long as a functioning satellite is overhead?

A

Satellite communications (SATCOM)

21
Q

What type of WSC are unique because they frequency hop, making them capable of anti jamming operations?

A

WSC-3 Havequicks

22
Q

The WSC-3 equipment has how many line of sight transceivers?

A

21

23
Q

The WSC-3 equipment has how many satellite communications transceivers?

A

12

24
Q

The WSC-3 equipment has how many havequick transceivers?

A

2

25
Q

Which UHF system is used exclusively for UHF LOS data via link?

A

URC-93

26
Q

How many URC-93 transceivers are there?

A

2

27
Q

Which SHF systems is the primary provider of near worldwide digital voice, teletype (TTY), and digital data communications?

A

WSC-6 (DSCS)

28
Q

This is better known as POTS (plain old temperature system) lines used to call offship

A

Digital voice

29
Q

This is better known as chat and message traffic

A

TTY (teletype)

30
Q

This is better known as IPC (internet protocol) and email services

A

Digital Data

31
Q

Which equipment is used for WCS-6?

A

DSCS (defense satellite communication system)

32
Q

Which SHF system is the secondary provider of near worldwide digital voice, teletype (tty), and digital data communications?

A

USC-69

33
Q

Which equipment is used for USC-69?

A

CBSP (commercial broadband satellite program)

34
Q

Which EHF system allows for satellite communication for ship to ship, ship to shore, and ship to submarine?

A

USC-38

35
Q

Which EHF system can “call” any other EHF terminal connected to the network?

A

USC-38

36
Q

Which EHF system can be used for internet provider services in an emergency?

A

USC-38

37
Q

What is the only communication system on the ship specifically designed to survive a nuclear blast?

A

USC-38

38
Q

This is defined as preplanned destruction, carried out on calendar basis

A

Routine destruction

39
Q

This is defined as unplanned destruction, 30 minutes to destroy materials in case of abandon ship or enemy infiltration ordered by the CO

A

Emergency destruction

40
Q

This is defined as any event or practice that could or does lead to a loss of communication security

A

COMSEC Incident

41
Q

This is a security measure requiring two persons to prevent single person access to COMSEC and EKMS materials

A

Two person integrity

42
Q

This is a network used to transmit classified information up to and including classified secret

A

SIPR (Secret Internet Protocol Routing)

43
Q

This is used to exchange unclassified information amongst private network, the largest in the world

A

NIPR ( Non-secure internet protocol router)

ESWS Board (11 decks)

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