External keyboard

Key	Function
-	Freq decrease
=	Freq increase
_	Freq step decrease
+	Freq step increase
[	Vol encoder change
]	Vol encoder change
{	Vol encoder function
}	Vol encoder function
Esc	Vol encoder change/function
Cursor left	MFK encoder change
Cursor right	MFK encoder change
Enter	MFK change/function
Print screen	Take screenshot
Scroll lock	Freq lock
Page up	To next band
Page down	To prev band
F9	Settings