Acoustic Flashcards
In regards to the ARTR, the DCU directs the _______ to tune sonobuoys, command a buoy via the command function transmitter.
SDSR
The _______ filters and amplifies the AS-4655/A antenna RF signals before sending the conditioned RF signals to the SDSR.
QEP
Which DASD stores the STP software?
SC DASD
What are the functions of the ASU?
BBBFLAGSS
- beam forming
- bearing computation
- bathythermal processing
- filtering
- localization
- ambient noise processing
- gram thresholding
- signal detection
- Signal generation for On-Board Trainer(OBT)
What are the interfaces with the SC?
- ASU
- Central computer
- ASCL receivers
- Acoustic recorder
- VDC
What is information is on the ASU DASD?
- System Test Program (STP)
- diagnostic software
- mission data for On-Board Trainer (OBT) mode
- operational load for the signal processor.
What information is on the SC DASD?
- operational load for the SC
- software for preflight mode
- STP diagnostics
- OBT mode
- generic and specific target presets.
How long after removing power from the DCU does the unit power and A1PS indicators remain illuminated?
15-20 seconds
Purpose of the MPDC module(A4A1A2)?
interfaces DCU with ASCLs and sound recorder reproducer system.
Purpose of the Ethernet switch module(A4A1A8)
- provides high-speed Ethernet connectivity within the DCU
- external interface to the VDC
What are the DCU thermal cutoff limitations?
> 50C / 122F
71C / 158F
How channels do the ADBs provide?
16 each
32 total
NTDS Module(A4A1A7)
communicates with the Central Computer over the NTDS interface
Function of CPU-2
A4
Processes software that controls communications to:
- SS2 PEP/CHRD
- SS1 PEP
- ASLCs
- AQH-13
- 2339
Function of CPU-1
A1
Processes software to control communications to SS1 CHRD and ASU.
How do you complete a manual readiness test for the ASCLs and what are the normal indications?
RCVR COMD-21 Enter TEST COMD-30 Enter After 3 minutes readout shout display 30 and SELF TEST should extinguish
What antenna does the ATSG use?
Deselected UHF-2
With AIC-41 what function of the acoustic audio panel is lost?
ICS disconnect, this is still selectable on CSC
AQH-4 standard tape reel will record for how long?
2 hours
How long does the AQH-13 record for?
14.5 hours
When does the AU cut off if not in battle short?
225*F
When does the DCU cut off?
200*F
When does the AQH-4 EOT CAUTION illuminate?
100 ft. Remaining
Approximately 10 minutes in slow
Which track on the AQH-4 records ICS?
Track 1
Which track on the AQH-4 records TCG?
Track 27
Acoustic aural monitoring is done on which ASCL receiver sub assemblies?
17 & 18
ASCL Plus can process a total of how many digital channels?
16
What is used to synchronize audio signals from the SASP AU to the AQH-4 recorder?
ADB via synchronization tones called “ Sonic Gates”
What is the nomenclature for the Sono audio Selctor?
A-524
What are the 3 bite lights on the front of the ATSG?
- RF GEN- RF Generator failure
- BASE BAND- base band generator section
- POWER SUPPLY- failure in the power supply
What are the 4 outputs of the ATSG?
RCVR 1
RCVR 2
ACPA
EXT
What function was added to the new Sono Audio Selector(A-602)?
DF function, permits the operator to select EER processed DATA from the data flow processor.
What system first incorporated IEER?
78B
CP-2590
