What recent technological advancement has improved Firefinder systems?

The choice of enhanced signal processing capabilities as the correct answer is well-founded. This advancement allows Firefinder systems to detect and track enemy artillery and mortar fire more accurately and rapidly. Enhanced signal processing involves sophisticated algorithms and advanced technology enabling the radar systems to filter noise and distinguish between genuine threats and false signals. This results in improved accuracy in locating the source of enemy fire, which is crucial in time-sensitive combat situations.

In addition, enhanced signal processing increases the system's ability to operate effectively in challenging environments where electronic warfare and other forms of interference may be present. By utilizing advanced processing techniques, the effectiveness of the Firefinder systems is significantly enhanced, providing valuable situational awareness to field commanders and increasing the overall effectiveness of artillery operations.

The other options do not provide the same level of advancement. Improved battery life, while important for operational longevity, does not directly contribute to the system's detection and tracking proficiency. Manual operation efficiency is also vital for the human component of operating the radar but does not represent a technological advancement in the system itself. Lastly, increased weight and size would generally be seen as a disadvantage, as modern military equipment trends toward portability and ease of deployment. Thus, the focus on enhanced signal processing capabilities significantly illustrates the recent improvements in Firefinder systems