DFM radiosonde above 1000 and not enough data to perform z check - projecthorus/sondehub-infra GitHub Wiki

Error messages that look like this can generally be ignored.

ERROR:Sondehub Uploader - Error uploading to Sondehub. Status Code: 202 {"message": "some or all payloads could not be processed", "errors": [{"error_message": "DFM radiosonde above 1000 and not enough data to perform z-check. Not adding DB to protect against double frequency usage."

DFM radiosondes have several frame types. The serial is only sent in one of those frame types while the position and time is sent in others. Due to this, if two DFM radiosondes are on the same frequency it's possible for a receiver to receive the serial from one radiosonde but the position from another. This causes the map to look like this:

To resolve this we require a minimum of 10 frames to be submitted so that our z-check can perform a basic check to limit wild position reports. As we still want to try to record the last known position we only apply this check when the altitude is above 2500m where this problem is most likely.

Users of radiosonde_auto_rx may need to increase their sondehub_upload_rate setting to something like 20 seconds for a higher chance of 10 contiguous packets being available for upload.