North Carolina RADAR State Practice Exam

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What does the 'range' setting on a RADAR unit adjust?

  1. The length of the transmitted beam

  2. The sensitivity of the RADAR receiver

  3. The speed of moving objects

  4. The distance of signal transmission

The correct answer is: The sensitivity of the RADAR receiver

The 'range' setting on a RADAR unit primarily adjusts the distance over which the unit can detect and monitor targets. This means it determines how far out the RADAR can pick up signals from moving objects. When the range is set appropriately, it allows the RADAR to effectively receive and process returning signals, which can be crucial for accurately measuring speed and distance. By properly configuring the range setting, users can ensure that they are monitoring the correct area without missing potential targets that are too far or too close. This flexibility is vital for effective operations, especially in dynamic environments where the distance of objects can greatly vary. The sensitivity of the RADAR receiver, while important, pertains more to how well the RADAR can detect weak signals rather than the distance it can scan, which is the primary concern of the range setting. The speed of moving objects is a product of the radar's functionality rather than a parameter that can be adjusted by the range setting itself.

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