> For the complete documentation index, see [llms.txt](https://teravolt.gitbook.io/teravolt/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://teravolt.gitbook.io/teravolt/gps/aeronav-pro-rtk/led-indicators.md).

# LED Indicators

| LED Name | Color  | Function                        |
| -------- | ------ | ------------------------------- |
| Power    | Red    | Indicates the module is powered |
| PPS      | Blue   | Blinks at 1 Hz for timepulse    |
| 3D Lock  | Green  | Solid when GNSS fix is acquired |
| RTK Fix  | Yellow | Solid when RTK fix is achieved  |