SU scans for the available APs to join. A list of scanned APs ( proprietary/non-proprietary) with basic details like SSID, MAC address, Channel, Frequency (MHz) , RSSI (dBm), Noise (dBm) , security and join are available at site survey. SU is allowed to join network with proprietary devices only. If the network is a secured type, Encryption key must be provided to join.