Acoustic

Question 0

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

Answer 0

SDSR

Question 1

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

Answer 1

QEP

Question 2

Which DASD stores the STP software?

Answer 2

SC DASD

Question 3

What are the functions of the ASU?

BBBFLAGSS

Answer 3

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

Question 4

What are the interfaces with the SC?

Answer 4

• ASU
• Central computer
• ASCL receivers
• Acoustic recorder
• VDC

Question 5

What is information is on the ASU DASD?

Answer 5

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

Question 6

What information is on the SC DASD?

Answer 6

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

Question 7

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

Answer 7

15-20 seconds

Question 8

Purpose of the MPDC module(A4A1A2)?

Answer 8

interfaces DCU with ASCLs and sound recorder reproducer system.

Question 9

Purpose of the Ethernet switch module(A4A1A8)

Answer 9

• provides high-speed Ethernet connectivity within the DCU

- external interface to the VDC

Question 10

What are the DCU thermal cutoff limitations?

Answer 10

> 50C / 122F

71C / 158F

Question 11

How channels do the ADBs provide?

Answer 11

16 each

32 total

Question 12

NTDS Module(A4A1A7)

Answer 12

communicates with the Central Computer over the NTDS interface

Question 13

Function of CPU-2

A4

Answer 13

Processes software that controls communications to:

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

Question 14

Function of CPU-1

A1

Answer 14

Processes software to control communications to SS1 CHRD and ASU.

Question 15

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

Answer 15

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

Question 16

What antenna does the ATSG use?

Answer 16

Deselected UHF-2

Question 17

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

Answer 17

ICS disconnect, this is still selectable on CSC

Question 18

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

Answer 18

2 hours

Question 19

How long does the AQH-13 record for?

Answer 19

14.5 hours

Question 20

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

Answer 20

225*F

Question 21

When does the DCU cut off?

Answer 21

200*F

Question 22

When does the AQH-4 EOT CAUTION illuminate?

Answer 22

100 ft. Remaining

Approximately 10 minutes in slow

Question 23

Which track on the AQH-4 records ICS?

Answer 23

Track 1

Question 24

Which track on the AQH-4 records TCG?

Answer 24

Track 27

Question 25

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

Answer 25

17 & 18

Question 26

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

Answer 26

16

Question 27

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

Answer 27

ADB via synchronization tones called " Sonic Gates"

Question 28

What is the nomenclature for the Sono audio Selctor?

Answer 28

A-524

Question 29

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

Answer 29

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

Question 30

What are the 4 outputs of the ATSG?

Answer 30

RCVR 1 RCVR 2 ACPA EXT

Question 31

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

Answer 31

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

Question 32

What system first incorporated IEER?

Answer 32

78B | CP-2590