# LBS Signals and false geofence events ## Question Are LBS signals taken into account when generating geofence entry and exit events, and can they cause false positives in geofence reports? ## Answer Yes. LBS-based positions can be used by the platform, and they can cause false positives in geofence reporting. This usually happens when: * the tracker cannot provide reliable GPS/GNSS (indoors, weak signal, etc.) * the tracker sends an LBS position with a large radius * the LBS radius overlaps a geofence boundary If the radius overlaps the geofence, the platform can interpret it as an exit and later an entry. ### How to reduce false positives Check the device's GSM/LBS data quality first. Then adjust **LBS detection radius** in device settings so the LBS radius remains within the expected area. ## Links * [LBS detection radius](/docs/user/guide/devices-and-settings/location-and-movement/lbs-detection-radius-block.md) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://navixy.com/docs/qna/using-navixy/lbs-signals-and-false-geofence-events.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.