Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

UABMT Test 2 (Block 2) > CCF-2 > Flashcards

CCF-2 Flashcards

(77 cards)

Start Studying
1
Q

Inexpensive and effective, _______ is the most widely used mechanical jamming device.

A

Chaff

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

Most effective electronic protection against chaff?

A

True Doppler processing at Med or High pulse repetition frequency (PRF)

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

Dipole elements designed to match the half wavelength of the victim radar?

A

Chaff

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

___________represents the number of complete cycles of an electromagnetic wave in a specified amount of time.

A

Frequency

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

_________________________________ has proven to be the best electronic protection to combat barrage jamming.

A

Pulse compression and increased power

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

Electronic protection for spot jamming is _______________.

A

frequency agility

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

The best electronic protection for sweep jamming is ___________________________.

A

patience/persistence or operator

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

The first line, and most common form, of electronic protection against jamming is __________.

A

Brevity

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

Targets need to be separated in range laterally by ___ / ___ in both pulse and beam width to ensure detection of both targets.

A

half / half

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

The VHF AM band is mostly used by _________________.

A

Civil aviation

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

__________radios are used for amateur communications, public service, and maritime operations.

A

High Frequency (HF)

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

___________________ has an electric field that combines vertical and horizontal fields resulting in a twist like corkscrew; penetrates all but the heaviest precipitation.

A

Circular Polarity

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

___________________has an electric field perpendicular to the horizon. With clutter rejection it is the favorite of contemporary radar engineers. It is often used due to its inherent rejection of clutter.

A

Vertical Polarity

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

___________________has an electric field parallel to the horizon and is the most sensitive polarity for detect conventional aircraft.

A

Horizontal Polarity

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

_________ jamming exposes its jamming signal back and forth through a number of frequencies.

A

Sweep

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

_________ jamming broadcasts radio noise simultaneously on every frequency of interest.

A

Barrage

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

________ jamming concentrates all of its power on a single victim frequency

A

Spot

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

_______________ procedures are pre-briefed steps operators will take to overcome communication jamming.

A

Chettermark

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

T/F Repeater jammers are only deceptive in range

A

False

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

Radar reflected from an object receding from the Doppler radar will be at a slightly ______________.

A

lower frequency

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

First generation fighter aircraft

A

Airborne Intercept (AI)

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

Combined AI and EW radars

A

Ground Controlled Intercept (GCI)

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

Elevated surveillance position

A

Airborne Early Warning (AEW)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Ground Controlled Intercepts and Airborne Early Warning radars with fan-shaped beams have to estimate target height where errors of up to _______ feet are not uncommon.

A

5,000

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Airborne Intercept (AI) radars sacrifice _____________________________ ?
Long range direction for light weight
26
The rate at which a radar transmits pulses is called the __________________.
Pulse Repetition Frequency (PRF)
27
This provides some protection from spoofing ______________.
Authenticators
28
As frequency increases, refraction ____________.
decreases
29
What does the Reader say about Doppler processing about an approaching / receding objects?
Radar reflected from an object approaching a transmitter will be at a slightly higher frequency than the source. From a receding object, the shift is to a lower frequency.
30
Lack precision needed to guide interceptors within firing range
Characteristics of Early Warning (EW)
31
Sacrifice long range detection for lightweight and close-in precision
Characteristics of Airborne Intercept (AI)
32
Combines long range of EW and precision of AI into single system
Characteristics of Ground Controlled Intercept (GCI)
33
Operating at 30k feet, above the terrestrial line-of-site, these platforms significantly increased LOS or radar
Characteristics of Airborne Early Warning (AEW)
34
Each AORs ID matrix may comply with JFACC’s rules of engagement? T/F
True
35
The phenomenon where waves DECREASE the amplitude of the resulting wave.
Destructive Interference
36
The phenomenon waves INCREASE the amplitude, or strength, of the resulting wave.
Constructive Interference
37
In-Phase
Constructive Interference
38
Out-of-phase
Destructive Interference
39
Electromagnetic energy is comprised of electrostatic and magnetic fields that are oriented ___________ to each other.
Perpendicular
40
Cosmic noise _________ as frequency increases.
Decreases
41
The measurement of one wave crest to the next is called the______________.
Distance : Wavelength Time: Period
42
VHF (FM) jam-resistant frequency-hopping radios commonly used by the Army are called ___________.
SINGGARS
43
UHF jam-resistant frequency-hopping radios are called ___________.
HAVEQUICK
44
HAVEQUICK requires which elements (3) to work?
Word-of-day (WOD) Time-of-day (TOD) Net
45
A staggered pulse repetition frequency (PRF) is the best electronic protection (EP) to counter ______________.
Range deception
46
Wavelength and frequency are __________ proportional?
Inversely
47
Refers to the effect on an EM wave as it travels through atmospheric zones. Deviated standard or expectation.
Anomalous propagation
48
Low pulse repetitionis frequencies (PRFs) avoid the ambiguity of ___________________ ?
second-time around targets
49
Unit of measure for wavelength is the _________.
meter
50
Air Intercept radars are round and produce ___________ main beams to provide highly accurate target data.
Pencil-beam
51
Azimuth deception jamming may be defeated by __________________________.
Side-lobe reduction or blanking
52
HAVE QUICK II can receive what from GPS?
A more precise Time of Day (TOD)
53
Radio Usage: Tactical military and satellite communication
Ultra High Frequency (UHF)
54
Radio Usage: Ideal for point-to-point communication up to about 40 mi
Super High Frequency (SHF)
55
Radio Usage: Handheld radio i.e., “Walkie-Talkie”
VHF (FM)
56
Radio Usage: Common civilian aviation
VHF (AM)
57
Radio Usage: Large segment of band reserved for amateur civilian radio comm
High Frequency (HF)
58
The ______________ pairs antennas together to create various zones of RF energy that can be compared to interpret direction of a received signal.
Dipole Array
59
The curvature of the ________________is such that most waves that make contact with the dish will be reflected to a single spot called the focus.
Parabolic reflector
60
With a ______________the dipoles were placed at a distance of half the wavelength from each other, and the adjacent dipoles were 180 deg out of phase from each other.
Planar array
61
Instead of physically steering the antenna to the desired azimuth, ________ varies the phase of each feeder in such a way as to move the zone of interference from left to right and up and down.
Active Electronic Scanned Array (AESA)
62
Electromagnetic (EM) waves travel at what speed?
Speed of light
63
What is/are the coded responses to a transmission authentication?
There are none.
64
What allows an operator to overcome spoofing?
Authentication
65
What is Digital Radio Frequency Memory (DRFM) jamming and the most effective electronic protection against it?
Staggered PRF and side lobe reduction; synthesizing and inserts false radar echoes into the victims’ radar display
66
Electronic protection against_______. Doppler processing at medium or high pulse repetition frequency (PRF)
Chaff
67
Electronic protection against_______. Patience and persistence of operator
Sweep
68
Pencil beam radars utilize a raster scan to ______________?
Find target Az/elev
69
HAVE QUICK II improvements:
TOD for GPS Hop through more freq more quickly Nets increase from 5 to over 2k
70
Fan beam radars utilized what to determine azimuth and position? Target azimuth?
Spinning Gimbal
71
How do you defeat range deception jamming?
Staggered PRF/Side Lobe Reduction
72
Type of effects that occur when: Ocean currents flow under cold air?
Super-refraction
73
Type of effects that occur when: Reflection off of atmospheric layers?
Ducting
74
Type of effects that occur when: Warm moist air moves over cold dry land
Sub-refraction
75
Round antenna characteristics?
Produce a thin, highly focused pencil beam
76
Which antenna uses fan beam this is thin in one direction and wide in the opposite plane?
Paraboloid
77
The OPTASKLINK Contains:
Data Frequencies Datalink Addresses Track blocks

UABMT Test 2 (Block 2) (4 decks)

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