Outdated documentation
You are reading outdated documentation. This page documents ChirpStack v3. ChirpStack v4 is the latest version.
Geolocation
Geolocation is implemented as an ChirpStack Application Server integration. ChirpStack Network Server simply forwards the 'fine-timestamp' (if available) when it receives an uplink.
Requirements
For using geolocation, you need to use gateways that are capable of providing a "fine-timestamp". Some of these gateways encrypt this fine-timestamp.
Decrypt fine-timestamp
When configuring the per gateway and board specific decryption key, ChirpStack Network Server will decrypt the fine-timestamp, before forwarding it to the geolocation-server. For getting this fine-timestamp decryption key, please contact your gateway vendor or Semtech.