Hello Jim, if you use an PoE midspan module as power source for the AP you could simply use a USV, so you can unplug the AP form jack with outservice interuption and then move the location or you use a special site survey battery back (search for vendor Terrawave) to power the AP. If you have an actual Enterasys AP like AP3705i or AP3715i/e (only controller-based APs) you have to prepare a static configuration of transmit power settings and enable the feature "restart service in absence of controller" in the advanced settings using the webgui of the wireless controller. If you have an old AP3630 (standalone AP) no controller is needed for initial AP setup, but its better to use the AP model you like to use in the deployment (different antennas).