Hello, according to ETSI https://www.etsi.org/deliver/etsi_en/301800_301899/301893/02.01.01_60/en_301893v020101p.pdf section 4.2.3.2.2, table 2 Note 3 states: >Slave devices without a Radar Interference Detection function shall >comply with the limits for the frequency range 5 250 MHz to 5 350 MHz. And Tx power limits are defined as following: 5150 to 5350: 20 dbm 5470 to 5725: 27 dbm Which means that if STA device can not do radar detection, it must use 20dbm Tx powers on all channels (can not use 27 dbm limit). Looking at regdb https://git.kernel.org/pub/scm/linux/kernel/git/sforshee/wireless-regdb.git/tree/db.txt, power limit for frequency range 5470 to 5725 is defined at 27 dbm. Question is: does wireless core assumes that each device can do radar detection in slave modes (eg acting as a STA) and it is enabled by default? I couldn't find any logic in kernel which would limit 27 dbm power to 20 for STA devices.
