Manual
A short book about the ideas the rest of the app assumes you already have. It does not repeat what the screens already tell you. For which radios are supported, what your plan allows and which browsers can talk to a radio, see About.
How ChannelBuddy works
The handful of ideas the rest of the app assumes you already have: what a codeplug is, why there is no Save button, where zones and scan lists are really set, and why some numbers close up when you delete a row and others leave a hole.
Writing to your radio
What actually happens when you write, why a backup is your only undo, and what state the radio is left in if a write stops partway.
When it goes wrong
How to tell the four kinds of failure apart, what the common messages mean, and what to do when the write succeeded but the radio still will not key up.
Not covered here? Ask in the AesApp group.