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Black Cat ALE Vacuum Cleaner

Black Cat ALE Vacuum Cleaner processes SDR I/Q recording files, looking for and decoding ALE signals found in the passband. This makes it possible to quickly and easily find many of the ALE transmissions in your SDR recordings, without having to manually find and decode them one by one. This means it only works with recording files, not with "live" signals.

It reads SDR recordings from many popular SDR programs:

  • SDR Console
  • SDRuno
  • SDR Sharp
  • Elad
  • SpectraVue
  • SdrDx

    Beta Versions:

    Preliminary beta versions. Likely to have bugs. Features/appearance/operation will evolve, perhaps substantially, over time. As updates can always break things, or change program features/operation, please be sure to keep a copy of your existing version when download a new version.

    Black Cat ALE Vacuum Cleaner 0.3.0b2 for Windows - Windows 8 / Windows 10 / Windows 11 - 2 September 2023

    Black Cat ALE Vacuum Cleaner 0.3.0b2 for Mac OS X - Mac OS X 10.10 thru Monterey - 2 September 2023

    Email your comments and questions to

    Last modified September 2, 2023