Netscout AirCheck G2 User Manual page 32

Green closed lock: All access points use security
protocols that are more secure than WEP, for example,
WPA or WPA2.
Gray closed lock: Access points on this network are
using multiple security protocols.
802.11 Types: The 802.11 types that the access point
supports:
802.11a: Uses the 5-GHz band.
802.11b: Uses the 2.4-GHz band.
802.11g: Uses the 2.4-GHz band.
802.11n: Can be used in the 2.4 GHz or 5 GHz bands.
802.11ac: Uses the 5-GHz band.
Supported Rates (Mbps): The extended physical (PHY) rates
that the AP is configured to support.
Basic Rates (Mbps): The basic physical (PHY) rates that the
AP is configured to support.
Authorization: Either the AP's manually selected
Authorization Class or the default Authorization Class. (The
default authorization can be None, Authorized, or
Unknown). Touch this field to configure the Alias Name and
Authorization Class for the selected AP. To change the default
Authorization Class, go to Settings > 802.11 Settings >
Default AP Authorization.
Clients: The number of clients connected to the AP. 
Touch this row to open the Clients list screen with the
clients filtered for the selected AP.
Band: The radio band the AP supports.
Channels: The channels that the access point is using. 
Touch this row to open the Channels Utilization screen
for the primary channel.
Last Seen: The amount of time that has passed since the
Tester last detected the AP.
802.11n Capabilities: Select the down arrow
for the AP's 802.11n capabilities.
NOTE: The "802.11n Capabilities" are taken from HT
Capabilities in the beacon and included for 802.11n and
802.11ac APs. This field is available only for 802.11n and
802.11ac APs.
802.11ac Capabilities: Select the down arrow
for the AP's 802.11ac capabilities.
NOTE: The "802.11ac Capabilities" are taken from VHT
Capabilities in the beacon and included for 802.11ac APs.
This field is available only for 802.11ac APs. Because an
802.11ac-only AP reports in its beacon both the HT
Capability and VHT Capability elements, an 802.11ac-only
AP will include both the 802.11ac and the 802.11n
Capabilities fields.
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Discovering Networks and Access Points
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