FYI: The 396 is P25 Phase 1 only, whereas 325 is P25 Phase 1 and 2 capable. I'm not sure what other differences there are as far as system types that can be monitored. I liked the 396. It had a better battery life since it used 3 batteries rather than 2 as in the 325. But alas I monitor a huge P25 Phase 1 and 2 system, and when it began using Phase 2 I had to switch to a newer scanner which could monitor Phase 2. If you listen to P25 systems and they go silent, it might be an indication that they are now using Phase 2, which the 396 cannot hear.