Swept-spot jamming is a type of noise jamming where narrowband jamming is shifted through the desired frequency range.

Swept-spot jamming is a type of noise jamming where narrowband jamming is shifted through the desired frequency range.

• A. Spot jamming
• B. Barrage jamming
• C. Swept-spot jamming
• D. Deception jamming

Answer: (C)

Swept-spot jamming is a noise-jamming technique that combines a narrowband, focused interference with a sweep across the target frequency range. The jammer concentrates on a single, narrow frequency band but continuously shifts its center frequency so that, over time, every frequency in the desired range is affected. This makes it hard for the receiver to lock onto any one signal because the interference moves through the band, effectively covering it as the sweep progresses. This differs from fixed-spot jamming, which stays on one frequency and leaves the others untouched; from barrage jamming, which jams a wide portion of the spectrum all at once; and from deception jamming, which corrupts the signal content rather than simply adding noise across frequencies.

Swept-spot jamming is a noise-jamming technique that combines a narrowband, focused interference with a sweep across the target frequency range. The jammer concentrates on a single, narrow frequency band but continuously shifts its center frequency so that, over time, every frequency in the desired range is affected. This makes it hard for the receiver to lock onto any one signal because the interference moves through the band, effectively covering it as the sweep progresses.

This differs from fixed-spot jamming, which stays on one frequency and leaves the others untouched; from barrage jamming, which jams a wide portion of the spectrum all at once; and from deception jamming, which corrupts the signal content rather than simply adding noise across frequencies.