Canon EOS R3 Advanced User's Manual page 671

3.
Select a channel setting option.
To specify the settings manually, select [Manual setting], then turn the
< > dial.
Select [OK].
4.
Select an encryption setting option.
For encryption, select [AES].
Select [OK].
When [AES] is selected, the [Password] screen is displayed. Press
< > to access the virtual keyboard (
key. After input, press the <
), then enter the encryption
> button.
671