My questions relates to the being able to keep a 'history' of readPoint (antennas) to their tag on the reader. Currently from what I understand: there is only an association between the readPoint when the tag is in view. This may be very brief for some tags as they pass the reader. Since we need to know which specific reader detected its tag I need to make sure that I have this information. I have tried both of the recommended models for interrogating the reader (polling and eventNotify). The eventNotify model appears to be too slow to guarantee the tag still being visible by the reader when we query the reader. And polling would have to be so often that I am not sure it would be viable. I am sure this is a common requirement so I am likely missing something so any help would be appreciated.   Cheers, Daniel