What are the three user-selectable operating modes of the M4 JCAD?

The three user-selectable operating modes of the M4 JCAD (Joint Chemical Agent Detector) are indeed those specified in the first option, which includes CWA 5-Second, CWA 1-Second, and TIC mode. Each of these modes is tailored for specific operational needs and environments, allowing users to effectively adapt their detection strategies based on the situation they face.

CWA modes (Chemical Warfare Agent) are designed to provide the user with rapid response capabilities, where the 5-second and 1-second options allow for quick assessments of chemical agents. The TIC (Toxic Industrial Chemical) mode is particularly important as it enables the detection of a broader range of toxic substances that might be found in industrial settings, making it versatile for various reconnaissance scenarios. This flexibility in operating modes enhances situational awareness, allowing for timely and appropriate responses to potential threats.

Understanding the functions and applications of each mode is essential for personnel involved in CBRN operations, as it maximizes the efficiency and effectiveness of detection and reconnaissance missions.