Practice question

What is a key operational limitation of Primary Surveillance Radar (PSR) when compared to Secondary Surveillance Radar (SSR)?

  1. PSR relies solely on reflected radio frequency energy and cannot determine aircraft identification, call sign, or pressure altitude without cooperative transponder replies
  2. PSR cannot detect aircraft made of aluminum or steel
  3. PSR operates only when the sun is directly overhead
  4. PSR displays only aircraft flying faster than Mach 2.0

Answer: A — PSR relies solely on reflected radio frequency energy and cannot determine aircraft identification, call sign, or pressure altitude without cooperative transponder replies

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