Backlight; Contrast - Iridium extreme ptt User Manual

• Backlight: Determines the length of time that the display is illuminated.
Choices are: Off, 5 (factory default), 10, 15, 20, 30 seconds.
• Contrast: Sets the resolution level for the display using the 2-way
Navi-key to increase or decrease the screen contrast.
214 Iridium Extreme® PTT User Manual
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Select Back

Backlight

Off
5 Seconds
10 Seconds
15 Seconds
20 Seconds
Select Back

Contrast

OK Back