Turn on the receiver, press F3 to enter LED mode. Turn on the receiver, press F3 to enter LED mode. The operation in this mode is very simple. When you enter this mode, the lcd screen will be shut off and it will enter Auto mode. You can press any key (can’t to be PWR) to activate display screen and enter AUTO mode. This mode is used in the very cold area because LCD screen can’t display well when the temperature is very low. In this condition, we can judge current status by indicator light. From left to right: indicator light for power, status and satellite. Indicator light for power: the light is green when A battery is been using and red when B battery is been using. Indicator light for status: the light will be green when it is recording data or it will quench.Indicator light for satellite: for example, if the light blinks green 6 times and blinks red one time, it means receiver has fixed 6 satellites.

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