17. Contrast
You can adjust contrast levels 0- 9, the default is 5.
Follow these steps:
F
Press
to save changes or press
F
18. Radio info
Show the current value of the voltage
Follow these steps:
F
Press
F
24
24
H
A
F
CH
Settings
H
A
F
CH
Settings
to save changes or press
H
A
F
Settings
Contrast
to exit.
E
H
A
F
Radio Info
Battery
to exit.
E
H
A
Contrast
5
H
A
Battery
7.5V
F
F