Different countries or regions have specified the channels and maximum transmit power of radio signals that can be used locally. Radio signals working on different channels may have varying signal strength. Country Codes and Channels Compliance describes the country code and channel compliance, maximum power allowed by each channel, and the mapping relationship between channels and frequencies. N/A indicates that the country or region does not support the channel.
When planning or optimizing WLANs, pay attention to working channels and corresponding transmit power of WLAN devices. Channel switching may affect signal strength, degrading network quality.
if you want the AP works at a specific channel, you need to set the channel and disable the channel auto select function. for example, we want to the AP works on channel 100, we will configure as follows:
ap-group name AP-group1 regulatory-domain-profile domain1 radio 1 channel 40mhz-plus 100 calibrate auto-channel-select disable
