to point jam
- phrasal verb
- Specialized
:
interferir
- Military communications can become unreliable if the enemy attempts to point jam vital frequency bands.
Examples
-
The new device can point jam enemy transmitters with remarkable accuracy.
-
Engineers developed a technique to point jam only the channels most commonly used for coordination.
-
The military decided to point jam the enemy's communications.
-
They point jammed the frequencies to disrupt the radar.
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The military decided to point jam enemy signals during the operation.
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Engineers developed a device that can point jam targeted frequencies effectively.
-
Suspicious of interference, the team prepared to point jam potential threats to their communication.
Synonyms
26
7.5
Deliberately block radio or electronic signals
To intentionally block a single radio or radar frequency using electronic signals
How Strongly
164
4.4
269
4.4
- Specialized
- Specialized
26
7.5
487
3.5
Surface Forms
Morphology
The verb 'jam' clearly means to interfere with radio/electronic reception, and 'point' functions as a modifier indicating a specific/targeted locus, so the phrase compositionally means targeted jamming. However, the precise technical sense — jamming a narrow band of radio frequencies for tactical/electronic warfare — is specialist jargon and relies on a particular sense of 'point' (target/frequency) that a B1 learner may not have, so the meaning is only partially predictable.
Etymology
Point jam may come from a simple image: imagine aiming a strong burst of noise like a beam at one small radio channel to stop it working. Here point means 'aim at' and jam means 'to block with noise', so the phrase means to block just that small radio channel.