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M20 APRS Support, Improved LMS6-1680 Decoding
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@darksidelemm darksidelemm released this 15 Aug 07:49
· 528 commits to master since this release
v1.5.5
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Learn about vigilant mode.

This release brings the following updates:

  • APRS: M20 telemetry can now be uploaded to APRS-IS (e.g. radiosondy.info)
  • APRS: The recommended comment string has been changed to include the full sonde serial number. Refer to the configuration file change-log: https://github.com/projecthorus/radiosonde_auto_rx/wiki/Configuration-File-Changelog#version-155
  • APRS: Removed the option to upload telemetry as position reports instead of APRS objects. The convention for telemetry uploading is to use Objects, and the position report option was causing more trouble than it was worth.
  • Decoders: The LMS6-1680 decode chain has been improved, with a good few dB of improved sensitivity. There is also the option to enable an alternate decode chain which gives slightly higher performance again, which can be selected between in a new configuration file option (refer change-log linked above). However, this decode chain uses a considerable amount of CPU, so is only recommended for use on a RPI 3B+ or better.
  • Scanning: Detection of LMS6-1680 sondes has been improved somewhat through the use of a wider FM filter bandwidth.
  • Web Interface: Instead of the serial number in the table being a link, there are now small icons next to each serial number, linking to Sondehub and radiosondy.info.
  • Historical Display: Table now shows Last Height, Maximum Height, and Maximum range for each sonde.
  • Historical Display: The coverage map now sets any bearings with no sonde data to the station location and 0 range. This has the effect of making the coverage map a little 'spiky', but is a more accurate representation of the data.
  • Docker: Fixes to running auto_rx on the Pi Zero W (Note that the Zero W is right on the bare edge of having enough CPU grunt to run auto_rx).

Note: We are aware that new installations may display the following message on startup:

The WebSocket transport is not available, you must install a WebSocket server that is compatible with your async mode to enable it. See the documentation for details. (further occurrences of this error will be logged with level INFO)

This can be safely ignored. The web interface should still continue to work as usual. Eventually we will figure out how to suppress it...

The pre-built Docker Image is now the recommended way to setup radiosonde_auto_rx on a new station. Using Docker avoids issues with updates to dependencies, and allows for fixes relating to system packages to be easily pushed out to users.

Please report any problems encountered either on the mailing list, or by raising an issue on this repository.

PLEASE DO NOT USE THE GITHUB GENERATED RELEASE ZIP FILES - USE THE INSTALLATION/UPDATE STEPS DESCRIBED IN THE WIKI

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