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1C5 5 Study > CDC Vol 3, 423 Tactical Data Link Types > Flashcards

CDC Vol 3, 423 Tactical Data Link Types Flashcards

1
Q
  • Which units commonly use Link 11?
A
  • Naval platforms
  • Airborne platforms
  • Ground units that need to link with them.
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2
Q
  • What polling technique does the network use to manage information exchange among Link 11
    participants?
A

Roll call

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3
Q
  • What types of communications systems are primarily used to transmit Link 11B information?
A
  • Landlines
  • Microwave
  • Troposcatter radio
  • Satellite communications
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4
Q
  • What functional mission areas does Link 16 support?

NOTE: there are seven

A
  • Joint theater air and missile defense
  • Attack operations
  • Counter-air
  • Interdiction
  • Suppression of enemy air defense
  • Close air support
  • Time-critical targeting prosecution.
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5
Q
  • What function of Link 16 decomposes data into message sets transmitted during pre-planned
    intervals?
A

TDMA (Time division Multiple Access)

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6
Q

TDLs are categorized into two categories, what are they?

A
  • Basic Interface Category

- Extended Category

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7
Q

What data links are in the basic interface category?

A
  • Link 16
  • Link 11
  • Link-11B
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8
Q

What data links are in the extended category?

A

Any TDL that provides data to the basic interface such as ATDL-1 and Link 1.

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9
Q

Is Link 11 full-duplex or half-duplex/simplex?

A

Half-duplex/simplex

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10
Q

What are the two modes a unit can enter into Link 11 as?

A
  • Broadcast mode

- Radio silent mode

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11
Q

Since link 11 data is not rebroadcasted, participating units only receive information from senders within ______?

A

Radio contract range

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12
Q

What equipment must you have to participate in Link 11?

A
  • DTS (Data Terminal Set)
  • HF or UHF radio
  • A computer with message-processing software
  • A common encryption device
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13
Q

What Link 11 equipment acts as a modem?

A

DTS (Data Terminal Set)

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14
Q

What are the two Link 11 waveform options on some data terminal sets (DTS)?

A
  • CLEW (Conventional Link 11 Waveform)

- SLEW (Single Tone Link 11 Waveform)

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15
Q

What enhanced capability does SLEW provide over CLEW?

A
  • Increased propagation

- A more powerful error detection and correction (EDAC) algorithm

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16
Q

What is the selectable data speed bit rates for Link 11?

A

2250 or 1364

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17
Q

What message series does Link 11 and Link 11B use?

A

M-Series

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18
Q

What is a significant drawback of Link 11 and why is it a weakness?

A
  • Susceptible to hostile jamming

- Link 11 is confined to a single frequency

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19
Q

In a Link 11 network, who provides directives and recommendations to all PUs to maximize link effectiveness?

A

DNCS Data Net Control Station

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20
Q

What is the speed range Link 11B can be set between?

A

Medium rate of 600 - 2400 bps

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21
Q

Is Link 11B jam resistance?

A

Yes - jam resistance is inherent in point-to-point circuit connectivity.

22
Q

What Link 11B unit assignment forwards data between two or more Link 11B units?

A

FRU (Forward Reporting Unit)

23
Q

What Link assignment allows a unit to forward data between Link 11 and Link 11B?

A

FPU (Forward Participating Unit)

24
Q

Is Link 11B full-duplex or half-duplex?

A

Full-Duplex

25
Q

Is Link 11 full-duplex or half-duplex?

A

Half-Duplex

26
Q

What is a Link 11B circuit composed of?

A
  • Modem

- Appropriate encryption devices

27
Q

What is the equipment needed to establish a Link 11B link?

A
  • Modem
  • Common encryption device
  • Associated cabling
  • A patch panel
  • Computer with message-processing software
  • External connector panel
28
Q

Who are the primary users of Link 11B?

A
  • Air Force
  • Army
  • Marine Corps
29
Q

What are the primary units that use Link 11B?

A
  • AOC
  • CRC
  • Army brigade-level units
  • Marine Corps units
30
Q

What do Link 11B critical nodes do?

A

Relay signals between two units when other means of data transfer fail to achieve connectivity.

31
Q

What date rates does Link 16 operate?

A

High rates of 26.9 to 107.6 kps

32
Q

What is the radio transmission and reception component in Link 16?

A

JTIDS/MIDS (Joint Tactical Information Distribution System/Multifunctional Information Distribution System)

33
Q

What Link 16 terminals are considered controlled cryptographic items (CCI)?

A
  • MIDS-LVT family terminals

- JTIDS Class 2 terminals

34
Q

What are they five distinctive environments was J-series message designed for?

A
  • Air
  • Land (ground)
  • Surface (maritime)
  • Space
  • Subsurface
35
Q

What is the waveform and frequency range of Link 16?

A

960 - 1215 megahertz (MHz)

36
Q

What communication standard format does Link 16 use?

A

MIL-STD 6016

37
Q

What modes of operations are available for Link 16 and what are their ranges?

A
  • Normal Mode & 300 NM

- Extended Mode & 500 NM

38
Q

Link 16 hopes over ___ frequencies, ___ times a second, spread over the ___ -___ MHz range.

A
  • 51 frequencies
  • 77,000 times
  • 960-1215 MHz range
39
Q

What is the standard interval time slot for TDMA in Link 16?

A

7.8125 milliseconds

40
Q

What is the timing slot in TDMA for voice, round-trip timing (RTT), and free text messages?

A

Three, six, or twelve 70-bit words

41
Q

What is the basic Link 16 communication “circuits”

A

NPG - Network Participation Groups

42
Q

What makes Link 15 cryptographically compatible?

A

Link 16 terminals use of thornton-based secure data unit (SDU)

43
Q

For Link 16, what does secure data unit (SDU) provide for message security (MSEC)?

A
  • Communications Security (COMSEC)

- Transmission Security (TRANSEC)

44
Q

In Link 16 what is the basic key for encrypting operational message traffic?

A

Traffic Encryption Key (TEK)

45
Q

What data link integrates USAF close air support aircraft with digitized battlefield?

A

SADL (Situation Awareness Data Link)

46
Q

What is a data radio based on the EPLRS (Enhanced Position Location Reporting System)?

A

SADL (Situation Awareness Data Link)

47
Q

What does SADL process?

A
  • EPLRS
  • Joint Variable Message Format (JVMF)
  • Link 16 messages
  • SADL messages
48
Q

SADL provides F-16C+ with cooperative engagement capabilities resulting in increased combat efficiency and effectiveness. What F-16C blocks use SADL?

A

F-16+ = Blocks 25/30/32

49
Q

What data link provides contention-free fighter-to-fighter, air-to-ground, and ground-to-air communications, facilitating position and status reporting for situation awareness?

A

SADL (Situation Awareness Data Link)

50
Q

SADL can provide positions of digitized ground maneuver unites for the Army and Marine Corps through what, respectively?

A
  • Army Tactical Internet

- Marine Corps Tactical Data Net

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