North Carolina RADAR State Practice Exam

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What happens when RADAR and CB radios are extremely close together?

  1. They enhance speed detection

  2. They cause no interference

  3. They create a weak signal

  4. They can cause interference

The correct answer is: They can cause interference

When RADAR and CB radios are extremely close together, they can cause interference. This interference arises because both systems operate on radio frequencies, and their proximity can lead to overlapping signals. When two devices transmit or receive on similar frequencies, it can create noise or distortion in the signals being processed. In practice, this means that if a RADAR unit and a CB radio are used in close proximity, the CB’s signal may interfere with the RADAR's ability to accurately detect speed or other metrics, and vice versa. Effective function of these systems relies on their ability to receive clear signals, and when interference is present, it can lead to diminished reliability and effectiveness. Other options do not fit because enhancing speed detection implies a beneficial interaction, while stating that there is no interference overlooks the reality of signal overlap. Creating a weak signal implies a reduction in effectiveness, but the primary concern is the potential interference that can cause issues in signal clarity and processing.

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