Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

RADar > 3D155 Volume 3 EOC > Flashcards

3D155 Volume 3 EOC Flashcards

(55 cards)

Start Studying
1
Q

DASR, The PSR solid state transmitter has how many amplifier modules?

A

8

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

DASR, what is the target range of the psr?

A

60nm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

DASR, what is the minimum peak output power for the psr?

A

long pulse-18KW

short pulse-19.5KW

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

DASR, what is the psr pulse compression ratio?

A

89:1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

DASR, what is the psr target capacity?

A

700 tracks or 1000 plots

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

MSSR, The MSSR has how many interrogators?

A

2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

MSSR, What is the center frequency of the MSSR transmitter?

A

1030 +/-.01MHz

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

MSSR, What is the MSSR receiver sensitivity?

A

Better than -90 dBm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

MSSR, What is the MSSR receiver center frequency?

A

1090 +/-.5MHz

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

DASR, what radar technology was developed in 1948 to correct ground clutter problems?

A

MTI

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

DASR, what is ‘blind speed’ and what radar technique is sued to fight it?

A

at certain speeds the Doppler shift of a target aligns with the PRT and the target becomes invisible to the radar; staggered prt are used to reduce blind speeds.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

DASR, what is the tangential problem, and how has the DASR solved it?

A

when an aircraft flies tangentially (90 degrees) from the radar and has a zero radial velocity because the aircraft is not moving towards or away from the radar and MTI cancels it; MTD can track zero velocity targets because it uses a clutter map to cancel ground clutter.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

DASR, what are ‘dim speeds’, and what are the known dim speeds for the DASR?

A

similar to blind speeds, where probability of detection of a target is decreased; 80 and 700 knots.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

DASR, what function does the DASR use to prevent ‘second time around’ target problems?

A

m of n, or binary integrator.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

DASR, what two solutions allow the DASR to use solid state transmitters?

A

multiple amplifier modules and pulse compression.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

DASR, which feed horn path is used for receive only?

A

high beam

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

DASR, what is the sensitivity of the target and weather ports while in circular polarization?

A

circular polarization reduces target port sensitivity by 3dB while increasing the weather port sensitivity by 8dB making both of them 3dB

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

DASR, what polarization mode is used in bad weather?

A

circular

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

DASR, which component of Unit 7 provides the user interface to the system by way of an operator’s terminal?

A

two sun workstations or SCDI.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

DASR, how many receive channels does the DASR have? how many receivers are in each channel?

A

two channels; three receivers each

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

DASR, how many transmitter amplifier modules does the psr have?

A

eight

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

DASR, what TCMM card detects antenna/transmitter group VSWR, PW, and duty cycle faults and generates an El signal, and what does the El signal do?

A

the transmitter rF monitor CCA; El disable sthe RF drivers.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

MSSR, what is the main reason that secondary radar can not be relied upon as the sole radar feed?

Study These Flashcards
A

a secondary radar system cannot operate without target cooperation.

24
Q

MSSR, how many challenge modes are available to the mssr, and what are they?

Study These Flashcards
A

four; modes 2/3/c/b

25
MSSR, what is the mssr side lobe suppression process called, and how does this process work?
receiver side lobe suppression; if the control video is stronger than the sum, the video is discarded.
26
MSSR, if two aircraft have the same discrete 3/a code and one of them is real, what is the other?
false target
27
MSSR, what comparison is made between difference and sum to determine the direction a target is from boresight?
phase; amplitude
28
MSSR, what is the result between sum and difference if the aircraft is right of boresight?
the resultant difference port phase leads the resultant sum port phase by 90deg
29
MSSR, what are the major components of the interrogator?
tx, rx, plot processor, and tracker
30
MSSR, where are the transmit pulses developed?
the mode generator PEC
31
MSSR, the lva antenna makes what three patterns?
sum, difference, and control
32
MSSR, what information does the plot processor report contain?
the aircraft's azimuth, range, mode 3/a code, and altitude
33
MSSR, how long will the tracker remain in a coast state?
four scans.
34
MSSR, what is the specialized test set used to maintain the monopulse beacon radar?
mbts II
35
MSSR, what mbts module checks the performance of the test set itself?
BIT module
36
STARS, what type of software is responsible for managing the computer hardware and all applications?
OS
37
STARS, what are some of the hardware resources an operating system, such as UNIX, is responsible for managing?
CPU, main memory (RAM), secondary memory (disk, ROM), and peripheral devices.
38
STARS, do any applications bypass the OS and access computer hardware resources directly? why?
no; because bypassing the os will cause a general protection fault.
39
STARS, there are two main parts of unix os; which part controls the hardware resources? which part provides user interface?
the kernel; the shell
40
STARS, what are the three levels of unix permissions?
user group other
41
STARS, what are the three types of unix permissions?
read write execute
42
Define STARS.
an open architecture, distributed software-based ATC automation system that is the replacement system for the DOD Rapcon and the FAA tracon air traffic control facilities.
43
STARS, what are the three facility types in STARS?
SCSC OSF SOS
44
STARS, the SCSC provides centralized control of what?
stars field support and hardware/software development
45
STARS, what does STARS replace?
``` pidp ii dbrite video mapper arts earts ratcf-dair micro-earts ```
46
STARS, what does the sos receive from the ARTCC?
nas information, etms data, and interfacility flight data necessary for accurate aircraft tracking.
47
STARS, what are the five roles TAS performs?
``` radar data display flight data interface and display operator interaction data recording status monitoring and sys control ```
48
STARS, how many different workstation does stars use? list them.
four. | mcw/tcw/tdw/gpw
49
STARS, how many different lans does stars use with the two service levels? list them
four. | fsLANa, fsLANb, esLANa, esLANb
50
STARS, how many different displays does STARS use? list them.
mcw/tcw/tdw/gpw/supplemental
51
STARS, what size is the ddm monitor screen? what is the resolution?
size 19.6
52
STARS, what size is the ddm monitor screen? what is the resolution?
size 19.6 x 19.6 inches | resolution 2048 x 2048
53
STARS, how are operational adjustments and maintenance alignments made on the DDM?
by remote controller
54
STARS, what is the purpose of the bold letter designators on the modules?
facilitate easy identification and troubleshooting
55
STARS, where can you find the interface for all major inputs to the DDM?
The read panel.

RADar (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions