Volume 6. Computer Complex & Data Link System

Front 1

מחכה (masculine)

Back 1

attend (m.s.)

Hint 1

mexake

Front 2

A01. Processing information
List the four components of a CPU.

Back 2

(1) Control unit.
(2) ALU.
(3) Internal memory.
(4) I/O controllers.

Front 3

A01. Processing information
From what substance are chips made?

Back 3

Silicon.

Front 4

A01. Processing information
What are the links between transistors called?

Back 4

Circuits.

Front 5

A01. Processing information
Will pure silicon conduct electricity?

Back 5

No.

Front 6

A01. Processing information
Why are laboratories that produce chips ultra-clean?

Back 6

So dust or other foreign particles don’t get on the circuits.

Front 7

A01. Processing information
Why are chips put in a plastic case?

Back 7

To make the chips easier to handle.

Front 8

A01. Processing information
Why are there different kinds of chips?

Back 8

Each is designed to do a certain job.

Front 9

A01. Processing information
On what device are chips mounted together?

Back 9

A printed circuit board.

Front 10

A01. Processing information
How many signals are in the code used by a computer?

Back 10

Two.

Front 11

A01. Processing information
What’s the code used by computers called?

Back 11

Binary.

Front 12

A01. Processing information
What’s another term for a transistor switch?

Back 12

Gate.

Front 13

A01. Processing information
What kind of gate sends on a pulse when it receives one at either or both of its terminals?

Back 13

An OR gate.

Front 14

A01. Processing information
What controls the speed of a computer’s activities?

Back 14

Clock.

Front 15

A01. Processing information
What determines the number of I/O devices on a computer system?

Back 15

The design of the system and the type of computer.

Front 16

A01. Processing information
What unit decodes commands and synchronizes a device with the data processing system?

Back 16

Control unit.

Front 17

A01. Processing information
What determines the storage location into which data is entered?

Back 17

The program instructions.

Front 18

A01. Processing information
What component of a computer supervises the entire information system as a whole?

Back 18

The control unit.

Front 19

A01. Processing information
Where is all the computer calculating, sorting, and comparing of data accomplished?

Back 19

The ALU.

Front 20

A01. Processing information
What are the storage areas in an ALU called?

Back 20

Registers.

Front 21

A01. Processing information
What links a computer to the outside world?

Back 21

The I/O units.

Front 22

A01. Processing information
What controls the accessing of I/O devices in a computer system?

Back 22

The I/O controller.

Front 23

A01. Processing information
What capability of an I/O controller increases processing speed in a computer system?

Back 23

The I/O controller can send and receive data to multiple devices simultaneously.

Front 24

A01. Processing information
What does a channel do?

Back 24

Manages the I/O control unit and the devices assigned to it.

Front 25

A01. Processing information
Can a channel act independently from the CPU?

Back 25

Yes.

Front 26

A01. Processing information
What allows for the overlapping of operations in a computer system?

Back 26

Buffering systems.

Front 27

A01. Processing information
Briefly explain the purpose of a buffering system.

Back 27

Stores data until a unit is available to accept it.

Front 28

A02. Memory and storage
What’s a bit?

Back 28

Binary digits 1 and 0.

Front 29

A02. Memory and storage
What’s a byte?

Back 29

Group of bits representing a character.

Front 30

A02. Memory and storage
How much can one primary memory location store?

Back 30

One data value.

Front 31

A02. Memory and storage
What happens to a value in primary memory when the processor sends a new value to that storage
address?

Back 31

It’s lost.

Front 32

A02. Memory and storage
What are the two kinds of primary memory?

Back 32

(1) ROM.
(2) RAM.

Front 33

A02. Memory and storage
Which kind of primary memory stores permanent instructions?

Back 33

ROM.

Front 34

A02. Memory and storage
Which kind of primary memory is called short-term?

Back 34

RAM.

Front 35

A02. Memory and storage
Which kind of primary memory is lost without continuous electricity?

Back 35

RAM.

Front 36

A02. Memory and storage
What type of memory is unlimited in size?

Back 36

Secondary or mass storage.

Front 37

A02. Memory and storage
What part of the computer can you compare to a great electronic file cabinet?

Back 37

Storage.

Front 38

A02. Memory and storage
Does all data to be processed pass through main storage?

Back 38

Yes.

Front 39

A02. Memory and storage
Name one kind of random-access unit.

Back 39

Disks.

Front 40

A02. Memory and storage
Name one kind of sequential-access unit.

Back 40

Magnetic tape.

Front 41

A03. Displays
What’s the heart of a computer display?

Back 41

The CRT.

Front 42

A03. Displays
Why must the CRT electron gun sweep the screen 60 to 70 times per second?

Back 42

To refresh the image since the phosphors don’t hold their glow for very long.

Front 43

A03. Displays
What does display resolution mean?

Back 43

The number of pixels that make up an image.

Front 44

A03. Displays
How many pixels are there on a CGA display?

Back 44

320 × 200 (64,000 dots).

Front 45

A03. Displays
What’s the current standard for displays?

Back 45

VGA.

Front 46

A05. Data transfer principles
What are the primary ACUC buses called?

Back 46

A, B, C, D, R1, R2, and T.

Front 47

A05. Data transfer principles
How many types of DLTs are used in the ACUC?

Back 47

Two – those for the 1553A data bus and those for the 1553B data bus.

Front 48

A05. Data transfer principles
What happens to the ACUs whenever the MSD is loaded or reloaded?

Back 48

The ACUs are automatically declared unloaded.

Front 49

A04. Computational system principles
What aircraft functions does the ACUC control and support?

Back 49

Navigation, weapons delivery, and ECM functions.

Front 50

A04. Computational system principles
To what operations are the four central ACUs dedicated?

Back 50

Navigation, weapon delivery, controls and displays, and critical functions.

Front 51

A04. Computational system principles
What are the functions of the other two ACUs?

Back 51

TF and radar control functions.

Front 52

A04. Computational system principles
What determines the primary function of each of the central ACUs?

Back 52

The software function loaded in the ACU’s memory.

Front 53

A04. Computational system principles
From what sources are the ACU memories loaded?

Back 53

The DTS or MSD.

Front 54

A04. Computational system principles
You can load the ACUs faster using what source?

Back 54

The MSD.

Front 55

A04. Computational system principles
Which ACU function monitors and controls the navigation functions?

Back 55

General navigation.

Front 56

A04. Computational system principles
Which ACU function determines an initial point to begin a bombing run?

Back 56

Weapons delivery.

Front 57

A04. Computational system principles
Which ACU function provides the integration link between offensive and defensive tasks?

Back 57

Control and display.

Front 58

A04. Computational system principles
Which ACU function maintains copies of critical data from the other ACUs?

Back 58

Critical data.

Front 59

A06. Integrated keyboard
How many channels are in the DEU?

Back 59

Two.

Front 60

A06. Integrated keyboard
Where does the DEU receive VIDEO and SYNC signals from? To where are the signals sent out?

Back 60

Radar video signal processor. Offensive and defensive systems operators’ MFDs and the video recorder.

Front 61

A06. Integrated keyboard
Each channel in the DEU has a MUX terminal bus interface, which is used for interfacing to what
bus?

Back 61

AMUX C bus.

Front 62

A06. Integrated keyboard
List the seven functions of the DFS and AOFS.

Back 62

(1) Manually or automatically loads both/either DEU RAMs.
(2) Monitors the IKB’s switch status.
(3) Controls the annunciators.
(4) Initializes and update the DEU.
(5) Processes the operator inputs.
(6) Performs self-test on the DEU’s operation.
(7) Monitors the tracking handle’s status.

Front 63

A06. Integrated keyboard
The IKB provides the OSO with the controls necessary to perform what functions?

Back 63

Select the right or bottom MFD; control the MFD character brightness; select top-level logic tree format;
select menu options; manually enter data as required on the current format; and control the video recorder.

Front 64

A06. Integrated keyboard
What function is provided by the IKB DIS SEL R/BOT keys?

Back 64

They select the right or bottom MFD for display and keyboard processing.

Front 65

A06. Integrated keyboard
What control varies the character brightness on the corresponding MFD?

Back 65

SYM BRT.

Front 66

A06. Integrated keyboard
What unique feature does the IKB and DEU have together?

Back 66

The ability to back up other control panels.

Front 67

A06. Integrated keyboard
What’s the function of the OSO tracking handle?

Back 67

To provide control of various functions on the RTI.

Front 68

A06. Integrated keyboard
What controls/switches are located on the OSO tracking handle?

Back 68

A crosshair control, real beam map switch, crosshair enable switch, and high-resolution map switch.

Front 69

A07. Multifunction displays
From where do the MFDs receive VIDEO and SYNC signals?

Back 69

The DEU.

Front 70

A07. Multifunction displays
What data is displayed on the MFDs?

Back 70

NAV, CM, SMS, and SYS management data.

Front 71

A07. Multifunction displays
What controls the data presented on the MFDs?

Back 71

The IKB.

Front 72

A07. Multifunction displays
What information is contained by the video display on both MFDs?

Back 72

System prime data, logic tree menus, and operator messages.

Front 73

A07. Multifunction displays
What’s the purpose of the “option” display portion of the MFD screen?

Back 73

It contains a list of optional formats or changeable parameters available within the selected format.

Front 74

A08. Navigation/auxiliary controls
What functions are provided by the NAV/AUX control?

Back 74

The ability to apply/remove power from the ACUC, and to select and control the radar set, inertial
navigation, dead reckoning, and Doppler radar navigation modes of the aircraft avionics.

Front 75

A08. Navigation/auxiliary controls
List the four groups of switchlights on the NAV/AUX control.

Back 75

(1) ACU/PWR.
(2) NAV PWR.
(3) NAV MODE.
(4) WIU PWR.

Front 76

A08. Navigation/auxiliary controls
What happens when you press one of the ACU/PWR ON switchlights on the NAV/AUX control
when no switchlights are on?

Back 76

EMUX system applies power to all four ACUs and accomplishes system startup by applying power to the
core avionics LRUs.

Front 77

A08. Navigation/auxiliary controls
What’s the purpose of the DCO indicator on the NAV/AUX control?

Back 77

It comes on when the DVS is operating in the velocity memory mode.

Front 78

A08. Navigation/auxiliary controls
What’s the purpose of the NAV MODE group of switchlights on the NAV/AUX control?

Back 78

They indicate which navigation reference is prime.

Front 79

A09. Bombing/navigation controls
What groups of switchlights are located on the BOMB/NAV control?

Back 79

MSL and BOMB, NAV UPDATE, STEER, and X HAIR.

Front 80

A09. Bombing/navigation controls
What happens when the MSL LNCH switchlight on the BOMB/NAV control is pressed while in
the manual mode?

Back 80

It commands a missile launch.

Front 81

A09. Bombing/navigation controls
Pressing RDR on the BOMB/NAV control causes what type of navigational update?

Back 81

Update with crosshair position reference.

Front 82

A09. Bombing/navigation controls
What’s the purpose of the NAV UPDATE REJ switchlight on the BOMB/NAV control?

Back 82

To command the navigation system to reject certain types of computed data that must first be manually
evaluated.

Front 83

A09. Bombing/navigation controls
What control of the BOMB/NAV control is used along with the tracking handle to designate FPs
for heading calibration?

Back 83

NAV UPDATE DES switchlight.

Front 84

A09. Bombing/navigation controls
MPW updates what navigate mode?

Back 84

DR.

Front 85

A09. Bombing/navigation controls
Pressing OVFLY on the BOMB/NAV control causes what type of navigational update?

Back 85

Update without crosshair position reference.

Front 86

A10. System overview
What is the radio transmission and reception component of the TADIL J system?

Back 86

JTIDS or MIDS.

Front 87

A10. System overview
What principle do the JTIDS/MIDS terminals operate on?

Back 87

TDMA.

Front 88

A10. System overview
How does the TADIL J system preclude jamming by a narrow band jammer?

Back 88

The transmission frequency of the terminal is changed for each pulse through 51 discrete UHF frequencies.

Front 89

A10. System overview
What is contention access?

Back 89

Assignment of specific time slots to multiple users.

Front 90

A10. System overview
Briefly explain the function of the JU in a Link 16 system.

Back 90

The JU identifies the units and determines a preassigned set of time slots that designate when the unit
transmits and receives data.

Front 91

A10. System overview
What does net number 127 indicate?

Back 91

Stacked net.

Front 92

A11. Areas of employment
What two EW message types does TADIL J support?

Back 92

(1) Parametric (frequency, pulse width, antenna pattern, etc.).
(2) Control/coordination messages.

Front 93

A11. Areas of employment
What two components are configured as a stacked net by air control?

Back 93

(1) Uplink.
(2) Back-link.

Front 94

A11. Areas of employment
What do fighters exchange among themselves on a fighter-to-fighter net?

Back 94

Sensor target information and aircraft status among themselves.

Front 95

A11. Areas of employment
When is voice clarity enhanced on secure voice channels?

Back 95

When using 16 kbps voice.

Front 96

A11. Areas of employment
What capability significantly reduces or prevents fratricide?

Back 96

All link participants to frequently provide comprehensive position, identification, and status information.

Front 97

A12. Link 16 data link advantages
How many units (maximum) may participate in a TADIL J system?

Back 97

32,766.

Front 98

A12. Link 16 data link advantages
What information is reported with ID reports?

Back 98

Platform, activity, specific type, and nationality of the track.

Front 99

A12. Link 16 data link advantages
How are improvements over previous TADIL systems attained in position reports?

Back 99

Through exchanges in latitude and longitude, course, speeds, altitude, and lines of bearing.

Front 100

A12. Link 16 data link advantages
What fields are added to Link 16 friendly status reports?

Back 100

Equipment status, ordnance inventory, radar and missile channels, fuel available for transfer, gun
capability, and station ETA and ETD.

Front 101

A12. Link 16 data link advantages
What coordinate system is used to report position information for the Link 16 messages?

Back 101

Geodetic.

Front 102

A13. Terminal physical description
What signal processing does the RT process for JTIDS TDMA?

Back 102

RF and IF signals.

Front 103

A13. Terminal physical description
On the RT, what does the ETI display?

Back 103

The total time that 115 VAC, 3-phase, 400 Hz power has been applied to the RT.

Front 104

A13. Terminal physical description
What does the DDGP consists of?

Back 104

DDP CP1575A/URC–107(V) and IU J–4781/URC–107(V).

Front 105

A13. Terminal physical description
In high power mode, how much power is made in the HPAG?

Back 105

1050 watts peak.

Front 106

A14. Power distribution and associated filters
What provides the primary power isolation, filtering, and distribution functions for the JTIDS
terminal?

Back 106

PDU SB–4322/URC–107(V).

Front 107

A14. Power distribution and associated filters
What provides for emergency back-up power to the JTIDS terminal?

Back 107

NiCad cells.

Front 108

A14. Power distribution and associated filters
What signals do the low pass filters pass?

Back 108

Signals in the 960 to 1215 MHZ range.

Front 109

A15. Concepts and functional description
What is the frequency range used by the JTIDS terminal?

Back 109

960 to 1215 MHZ.

Front 110

A15. Concepts and functional description
What is the operating range of the JTIDS terminal (normally) in LOS?

Back 110

Greater than 300 NM.

Front 111

A15. Concepts and functional description
What is an epoch?

Back 111

A time “cycle.”

Front 112

A15. Concepts and functional description
How many bits of data can be transmitted in a given time slot?

Back 112

930.

Front 113

A15. Concepts and functional description
What allows for propagation of the transmitted signal to a range of better than 300 NM without
other transmissions causing interference?

Back 113

Silent period.

Front 114

A15. Concepts and functional description
What two time slot structures can be employed by JTIDS terminals to increase the data capacity?

Back 114

(1) Packed–2.
(2) Packed–4.

Front 115

A15. Concepts and functional description
What component acts as the controlling element for all RT TDMA functions?

Back 115

DDP.

Front 116

A15. Concepts and functional description
In the IU, what is the rate in which voice messages can be processed?

Back 116

2.4 or 16 kbps.

Front 117

A15. Concepts and functional description
How many frequency synthesizer and receiver channels are contained in the RT?

Back 117

Eight.

Front 118

A15. Concepts and functional description
What provides the power to the chronometer functions of the DDP?

Back 118

Lithium/sulfur dioxide cells.

Front 119

A16. System synchronization processes
How many receivers in the RT are used for receiver tuning?

Back 119

Eight.

Front 120

A16. System synchronization processes
What processes can be used for fine sync?

Back 120

Active or passive (radio silent).

Front 121

A16. System synchronization processes
What sync is accomplished using an exchange of sync messages between the entrant and NTR
station?

Back 121

Active.

Front 122

A17. Tactical Information Gateway System general components’ description
What are the three scenarios in which the TIG System is capable of distributing C2 and tactical
information?

Back 122

(1) Inter-zone connectivity between JTIDS or MIDS networks.
(2) Intra-theater reach forward and reachback.
(3) Connectivity to geographically isolated units.

Front 123

A17. Tactical Information Gateway System general components’ description
What are the two groups of the TIG System?

Back 123

(1) TIG interface group.
(2) TIGS.

Front 124

A17. Tactical Information Gateway System general components’ description
What component of the TIG interface group enables BLOS coverage?

Back 124

SATCOM/GPS antenna.

Front 125

A17. Tactical Information Gateway System general components’ description
What component of the TIG interface group improves low level signal reception?

Back 125

LNA/diplexer assembly.

Front 126

A17. Tactical Information Gateway System general components’ description
What is the operating range of the L-band antennas?

Back 126

960 to 1215 MHz.

Front 127

A17. Tactical Information Gateway System general components’ description
What provides for IPF/suppression, Ethernet and LNA/diplexer connections in the TIG interface
group?

Back 127

MIP.

Front 128

A18. Tactical Information Gateway System’s basic function description
What component primarily handles LOS communications in the TIG System?

Back 128

MIDS terminal.

Front 129

A18. Tactical Information Gateway System’s basic function description
What is the purpose of LOS communications within a JTIDS/MIDS network?

Back 129

To enhance battlespace situational awareness through the automatic exchange of position, identification,
targeting, and threat information.

Front 130

A18. Tactical Information Gateway System’s basic function description
What provides for BLOS communications?

Back 130

The RT–1794(C), also called the SATCOM RT.

Front 131

A18. Tactical Information Gateway System’s basic function description
Within the GPS receiver, what module ensures the availability of reliable GPS data in a hostile
electromagnetic environment?

Back 131

SAASM.

Front 132

A18. Tactical Information Gateway System’s basic function description
What provides the primary interface for configuring and controlling all LOS and BLOS
communications?

Back 132

GM computer.