Which low-power lightweight sensor is specifically mentioned for continuous scanning without increasing SIGINT operations?

The correct response highlights that the sensor mentioned for continuous scanning without increasing SIGINT operations is neither the Puma nor the RQ-7B Shadow. This implies that there is a specific sensor designed to fulfill this role, distinct from the options listed in A and B.

Understanding the context, the term SIGINT refers to signals intelligence, which involves collecting and analyzing signals like communications or electronic emissions. Developing low-power lightweight sensors for continuous scanning while avoiding the escalation of SIGINT operations is vital for ensuring covert operations and minimizing detection risks.

In this case, the Raven is known for its application in situations that require small, portable, and efficient aerial reconnaissance, indicating its capability for ongoing scanning without the associated drawbacks linked with larger or more complex systems like the RQ-7B Shadow or the Puma. The distinction underscores the need for specialized tools in military and intelligence applications where stealth and efficiency are critical.