Not necessarily there are just times that the system will have out of the area things come through, could be that someone from that other area comes into your area and their radio affiliates so it starts picking up that TGID. I would leave the bank in open mode so it picks up everything and just lock out those IDs your not interested in at least on the 2055 that won't work on the 95 the lockout doesn't work on the open bank I believe.