# RTK subsystem APIs

Source: [https://docs.qualcomm.com/doc/80-PK177-134/topic/rtk_subsystem_api.html](https://docs.qualcomm.com/doc/80-PK177-134/topic/rtk_subsystem_api.html)

The RTK subsystem provides APIs for **decimeter**-level positioning.

It works in conjunction with the NTRIP configuration and correction data injection APIs.

- **[Constructor](https://docs.qualcomm.com/doc/80-PK177-134/topic/pp_rtk_manager.html)**
- **[requestPreciseLocationUpdates](https://docs.qualcomm.com/doc/80-PK177-134/topic/request_precise_location_updates_rtk.html)**  

Starts a precise positioning tracking session for meter-level accuracy. Before calling this API, correction data source should be registered.
- **[removePreciseLocationUpdates](https://docs.qualcomm.com/doc/80-PK177-134/topic/remove_precise_location_updates_rtk.html)**  

Stops the ongoing precise location session. After calling this API the correction data source should be deregistered.

**Parent Topic:** [RTK](https://docs.qualcomm.com/doc/80-PK177-134/topic/rtk.html)

Last Published: Nov 14, 2024

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