There are two types of commands: inherent and edit.
Inherent commands need no further input from the user (example: display brightness commands)
Edit comands need further input from the user and must end as follows:
Accept the changes, save and exit
Abandon the changes and exit
The commands are organized into levels, there are three operator command levels (1-3), a Maintenance
level (4), and a Supervisor level (5). Command levels are indicated at the 4th character on the bottom row.
Command levels are navigated as follows:
go up one level
go down one level
Command levels 2 and 3 are time limited, if a command is not selected within 5 seconds the unit returns
to command level 1 automatically. When a level 2 or level 3 command is completed, the timer is reset
and the radio remains on that command level until a command is selected, ESC is selected or time out.
Programming the Radio – Command Architecture