What is the minimum distance required for probes to achieve NMI?

The minimum distance required for probes to achieve Non-Malicious Interference (NMI) is established at 4 inches. This distance is critical because it ensures that the probes do not come into close proximity with each other, which could lead to interference in the signals each probe sends or receives. Maintaining this minimum distance helps to ensure accurate readings and reliable data collection, preventing cross-talk between the devices. Understanding this guideline is essential for effective operation and reliability in scenarios where probes are utilized, particularly in law enforcement and public safety applications.