The frequency range of vehicle radar operating at 76-77GHz has been extended to 76-81GHz. The average power limit is 50 dBm EIRP and the peak power limit is 55 dBm EIRP.
In addition to the 76-81 GHz automotive radar, Act 4776 also updated the requirements for the following equipment/systems:
1.Vehicle radar operating in the 46.7-46.9 GHz
2.Level detection emitter-sensor operating in the 76-81 GHz
3.Vehicle radar systems operating in the 22-29 GHz
4.Wireless multi-gigabit System
For more detail information, please check it from this website link:
https://www.anatel.gov.br/legislacao/atos-de-certificacao-de-produtos/2020/1467-ato-4776