By default both Polaris and BrailleSense 6 notetakers assume entry is in UEB although it is possible to switch between codes manually using the SPACE+G shortcut. However in circumstances particulasr where numbers and special symbols are used switching Braille grade to your preferred option may not always work out. Items like wi-fi passwords or email address will require you to enter using UEB anyway.
To illustrate with an example, consider: Stu14td
* Dot 6 before letter S to denote input of a single uppercase letter.
* Number sign dot3-4-5-6 prio of Braille entry 14 as lower digits
* Dot5-6 letter sign to indicate return to letter shift input
@ sign = Dot 4 followed by dot 1 (UEB input)
@ sign = space-U followed by dot 4 (computer Braille)