If the setting is null then it is using the default for the model of AP that you have. Basic Indoor Profile is going to be the default for all indoor APs (MR33 etc.). The Basic Outdoor Profile will be used by outdoor APs (MR84 etc.).
The ID of an RF profile to assign to the device. If the value of this parameter is null, the appropriate basic RF profile (indoor or outdoor) will be assigned to the device. Assigning an RF profile will clear ALL manually configured overrides on the device (channel width, channel, power).
If you're trying to get the channel number, channel width, and power you can get the SSID status of the AP.
Thank you for trying to answering to my question, @CN.
There are 4 APs in a network of my company (please check the image under) and I want to get the value of channel, channel width, target power, and transmit power of each AP via API. And I do not know which API I can use.
This will return the channel and power. Even though it lists them for every single SSID, it will be the same for each band. For all of the 2.4 GHz band, the channel and power will be the same. Same thing for the 5 GHz band.
(Target power currently does not have an API endpoint.)