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Advanced settings 
Advanced settings overview 
District code 
Radio frequencies for countries and regions vary based on country regulations. A district code 
determines characteristics such as frequency range, channel, and transmit power level. Configure the 
valid country code or area code for a WLAN device to meet the specific country regulations. 
Switching to fit AP mode 
An AP that supports the fat and fit AP modes can switch from fat to fit to cooperate with an AC or unified 
switch. You can scale a small-sized network with fat APs smoothly by switching their operating mode to 
the fit AP mode. Centralized management is achieved. 
Continuous transmitting mode 
The continuous transmitting mode is used for test only. Do not use the function unless necessary. 
Uplink interface monitoring 
A fat AP connects to an uplink network through the Ethernet interface or radio interface in bridge mode, 
as shown in Figure 441 and Figure 442. W
ith uplink interface monitoring enabled, the AP can detect 
uplink interface faults. When such a fault occurs, the SSID of the AP is not available for the clients to 
access the WLAN service until it recovers. Then the clients turn to search for SSID of another functional 
AP. For more information about how to configure uplink interface monitoring, see "Configuring uplink 
i
nterface monitoring." 
Figure 441 Network diagram for uplink interface monitoring (an Ethernet interface acts as the uplink 
interface)