What effect can improperly adjusted transponders have on radar systems?

• A. Increase clarity of targets
• B. Cause false targets
• C. Improve radar range
• D. Enhance weather detection

Answer: (B)

Improperly adjusted transponders can indeed cause false targets on radar systems. This occurs when a transponder's settings lead it to transmit incorrect information about an aircraft's identity or position. If a transponder is misconfigured, it might emit signals that confuse the radar systems, resulting in targets being displayed that do not correspond to actual aircraft. This can complicate air traffic management and pose safety risks since controllers may misinterpret these false targets as real threats, misguiding them in their efforts to track and manage air traffic effectively.

The other options would not occur due to improperly adjusted transponders. For instance, clarity of targets is not improved; in fact, it deteriorates when false targets are represented on radar. Similarly, radar range is not enhanced, as poor transponder performance typically results in limited or inaccurate information. Weather detection does not benefit from transponder adjustment, as it primarily relies on other radar technologies that interpret different data sets. Thus, recognizing the potential for false targets serves as an essential aspect of maintaining safety in airspace.