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NATOPS > Acoustic > Flashcards

Acoustic Flashcards

0
Q

In regards to the ARTR, the DCU directs the _______ to tune sonobuoys, command a buoy via the command function transmitter.

A

SDSR

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1
Q

The _______ filters and amplifies the AS-4655/A antenna RF signals before sending the conditioned RF signals to the SDSR.

A

QEP

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2
Q

Which DASD stores the STP software?

A

SC DASD

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3
Q

What are the functions of the ASU?

BBBFLAGSS

A
  • beam forming
  • bearing computation
  • bathythermal processing
  • filtering
  • localization
  • ambient noise processing
  • gram thresholding
  • signal detection
  • Signal generation for On-Board Trainer(OBT)
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4
Q

What are the interfaces with the SC?

A
  • ASU
  • Central computer
  • ASCL receivers
  • Acoustic recorder
  • VDC
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5
Q

What is information is on the ASU DASD?

A
  • System Test Program (STP)
  • diagnostic software
  • mission data for On-Board Trainer (OBT) mode
  • operational load for the signal processor.
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6
Q

What information is on the SC DASD?

A
  • operational load for the SC
  • software for preflight mode
  • STP diagnostics
  • OBT mode
  • generic and specific target presets.
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7
Q

How long after removing power from the DCU does the unit power and A1PS indicators remain illuminated?

A

15-20 seconds

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8
Q

Purpose of the MPDC module(A4A1A2)?

A

interfaces DCU with ASCLs and sound recorder reproducer system.

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9
Q

Purpose of the Ethernet switch module(A4A1A8)

A
  • provides high-speed Ethernet connectivity within the DCU

- external interface to the VDC

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10
Q

What are the DCU thermal cutoff limitations?

A

> 50C / 122F

71C / 158F

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11
Q

How channels do the ADBs provide?

A

16 each

32 total

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12
Q

NTDS Module(A4A1A7)

A

communicates with the Central Computer over the NTDS interface

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13
Q

Function of CPU-2

A4

A

Processes software that controls communications to:

  • SS2 PEP/CHRD
  • SS1 PEP
  • ASLCs
  • AQH-13
  • 2339
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14
Q

Function of CPU-1

A1

A

Processes software to control communications to SS1 CHRD and ASU.

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15
Q

How do you complete a manual readiness test for the ASCLs and what are the normal indications?

A 
RCVR COMD-21
Enter
TEST COMD-30
Enter
After 3 minutes readout shout display 30 and SELF TEST should extinguish
16
Q

What antenna does the ATSG use?

A

Deselected UHF-2

17
Q

With AIC-41 what function of the acoustic audio panel is lost?

A

ICS disconnect, this is still selectable on CSC

18
Q

AQH-4 standard tape reel will record for how long?

A

2 hours

19
Q

How long does the AQH-13 record for?

A

14.5 hours

20
Q

When does the AU cut off if not in battle short?

A

225*F

21
Q

When does the DCU cut off?

A

200*F

22
Q

When does the AQH-4 EOT CAUTION illuminate?

A

100 ft. Remaining

Approximately 10 minutes in slow

23
Q

Which track on the AQH-4 records ICS?

A

Track 1

24
Q

Which track on the AQH-4 records TCG?

A

Track 27

25
Q

Acoustic aural monitoring is done on which ASCL receiver sub assemblies?

A

17 & 18

26
Q

ASCL Plus can process a total of how many digital channels?

A

16

27
Q

What is used to synchronize audio signals from the SASP AU to the AQH-4 recorder?

A

ADB via synchronization tones called “ Sonic Gates”

28
Q

What is the nomenclature for the Sono audio Selctor?

A

A-524

29
Q

What are the 3 bite lights on the front of the ATSG?

A
  1. RF GEN- RF Generator failure
  2. BASE BAND- base band generator section
  3. POWER SUPPLY- failure in the power supply
30
Q

What are the 4 outputs of the ATSG?

A

RCVR 1
RCVR 2
ACPA
EXT

31
Q

What function was added to the new Sono Audio Selector(A-602)?

A

DF function, permits the operator to select EER processed DATA from the data flow processor.

32
Q

What system first incorporated IEER?

A

78B

CP-2590

NATOPS (30 decks)

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