Oppo A54 5G Notes On Usage page 31

• Wireless LAN (Wi-Fi
The product uses the 2.4 GHz band. DS-SS and OFDM are used
as the modulation schemes. The interference distance is about 40
m or less.
•
This means that all 2.4 GHz bandwidths can be used, and that
band of mobile unit identification devices can be avoided.
Available channels differ depending on the country.
For use in an airplane, check with the airline company in advance.
5 GHz frequency band precautions
Wireless LAN (Wi-Fi
the 5.2 GHz band and 5.3 GHz band outdoors is prohibited by the
Radio Law (except when communicating with a base station of data
communication system for 5.2 GHz high power frequency band or
land mobile relay station).
The product uses the following channels.
W52 (5.2 GHz band/36, 40, 44, 48 ch)
W53 (5.3 GHz band/52, 56, 60, 64 ch)
W56 (5.6 GHz band/100, 104, 108, 112, 116, 120, 124, 128, 132,
136, 140, 144 ch)
®
) function: 2.4DS/OF4
®
) function of the product uses 5 GHz band. Using
Safety Precautions
29