In 1/2 meter resolution, the radar can interfere with FAA ground radars. Operators shall not use 1/2 meter resolution over land within how many nautical miles due to NTIA restrictions?

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Multiple Choice

In 1/2 meter resolution, the radar can interfere with FAA ground radars. Operators shall not use 1/2 meter resolution over land within how many nautical miles due to NTIA restrictions?

Explanation:
The key idea is regulatory protection of aviation radar. High-resolution radar (1/2 meter) can create interference or misleading returns for FAA ground-based radars used in air traffic control. To prevent that, NTIA sets a protecting buffer around FAA radar facilities. Over land, you’re not allowed to use 1/2 meter resolution within 70 nautical miles of those FAA radars. This distance is chosen to balance the need to avoid interference with the practical coverage of both systems.

The key idea is regulatory protection of aviation radar. High-resolution radar (1/2 meter) can create interference or misleading returns for FAA ground-based radars used in air traffic control. To prevent that, NTIA sets a protecting buffer around FAA radar facilities. Over land, you’re not allowed to use 1/2 meter resolution within 70 nautical miles of those FAA radars. This distance is chosen to balance the need to avoid interference with the practical coverage of both systems.

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