M2_LRPT_DECODER Version 59 Released

Thank you to Carl Reinemann for writing in and sharing with us that his Meteor M2 LRPT decoder was recently updated. The Russian Meteor M2-3 weather  satellite was launched in June of this year and is currently the only operational Meteor M2 satellite in the sky. It transmits images at 137 MHz in the digital LRPT format.

To receive it a simple V-Dipole antenna and RTL-SDR is usually sufficient. And to decode it software like SatDump or M2_LRPT_DECODER combined with the Meteor Demodulation Plugin for SDR# can be used. Instructions for the latter are available on HappySats instructional page.

Regarding the update Carl writes:

Thanks to Oleg (Robonuka), Happysat and Usradioguy have been testing the new decoder for about 6 weeks now, and it is ready to go!

  • The stability of the processing has been improved: The decoder is now more likely to produce stable results, even when there are errors in the input data.
  • The procedure for generating RGB and calculating GEO in the error-handling block has been improved. Now, the decoder’s processing is considered unfinished until the GEO calculation is completed.: This means that the decoder will now wait until the GEO calculation is finished before generating the RGB values. This helps to prevent errors and produce more accurate results.
  • Exception errors fixed: Some errors that were previously causing the decoder to crash have been fixed.
  • AutoClose=yes by default: This means that the decoder will now automatically close when it is finished decoding. This can be helpful for saving resources and preventing memory leaks.
  • 80K is much more stable: The decoder is now more stable than before. This means that it is less likely to crash or produce unexpected results.
  • Overall, these changes make the decoder more reliable and easier to use.

    V59 Software can be downloaded from my page https://usradioguy.com/meteor-m2-3/ , or on happysats page

    Update instructions are on my page as well.

Screenshot of an older version of M2 LRPT Decoder


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