I have noticed that within the last month or so, I am no longer picking up any Viper traffic. My assumption is that since that information is no longer listed in the RR database, it is no longer used. I assume that I need to reset my 996xt to the use of the new P25 system. Why is it though that I am not hearing the new system anyway? Weren't both the old and new systems using the same frequencies? I also am noting that there are far fewer talk groups listed as well for the p25 system (Viper). Is that just because there hasn't been enough time to learn those? (and list in RR's database?)