First off, don't ever think you bother anyone with your questions.   We enjoy the questions and challenges that can come with them.  To answer your question,  technically the NVR can be anywhere as long as there is an Internet connection.  Because you can put the cameras and their access point on an Internet connection,  do some port forwarding and stream them to an NVR off site.  But I think what you are referring to is on the same site.  With data you have a limitation of 328 feet from origination to destination,  but you can add up to 3 switches in a line to increase that distance.   So you could have your NVR approx 1000 feet away in one direction and the access point approx 1000 feet in the other direction,  from the router.  This is because all the communication is occurring through the router and that is the point of origination for both devices.  With our access points you can go 9 miles line of sight from each other and have 150Mbps through put.  And average 2mp camera will produce 8Mbps.   You can only utilize roughly half the through put so, theoretically I would answer 8 when the access point is going to a gigabit switch.   I hope this helps!