CTR2 includes a basic help feature. To access this feature touch the Help button on the Home page.
The first time you open CTR2 a disclaimer will be shown. You should to read and understand both pages of the disclaimer to continue. Use the Prev and Next buttons or the rotary encoder to scroll through the help pages.
Once you get through the disclaimer stuff you’ll find many topics in the Help page that will be of interest such as Q-signals and the Phonetic Alphabet.
Touch the <– button to return to the Home page.