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7 Cards in this Set
- Front
- Back
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How are wavelength and frequency related? |
Inversely; as frequency increases, wavelength decreases and vice versa. C = Lambda * f |
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What are advantages of higher frequency? Lower frequency? |
Higher frequency are used for a better and more accurate picture but more prone to attenuation.
Lower frequency less prone to disruption and can travel further. |
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How does attenuation affect electromagnetic waves? |
1. Spreading: Waves spread over distance, decreasing their strength. 2. Scattering: Waves scatter when they contact hard particles or surfaces along their path of travel. 3. Absorption: Highly absorbant materials absorb waves, transferring the electromagnetic energy into internal energy. |
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Name four performance factors which affect radar. |
Beamwidth, Noise & Sensitivity, Range Resolution, Radar Cross Section |
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Three types of flares. |
Overt, Covert, Kinematic |
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List four countermeasures. |
Jamming(physical and electronic), Chaff, Flares. All are combined with Maneuver. |
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What does MANPADS stand for? |
Man Portable Air Defense System |
