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MeshCoreSniffer v1.0.3 (Windows x64)

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@SarahRoseLives SarahRoseLives released this 30 Oct 05:13
· 2 commits to main since this release
v1.0.3
a521125

Portable Windows x64 build.

Changes in v1.0.3:

  • Fixed the RTL-SDR gain mode. librtlsdr uses 0 = automatic and 1 = manual, so the previous code ran at minimum gain for --gain auto and ignored --gain <dB>. Live decoding now gets the gain you ask for.
  • Live trigger now measures in-band energy instead of broadband RMS, with a rolling-median noise floor. Weak/moderate packets trigger, and noise spikes can no longer leave the receiver stuck false-triggering.
  • End-of-burst detection uses a median window, so impulse noise no longer stretches captures to the 2 s limit or truncates packets.
  • Live mode now defaults to 250 kHz (4x oversampling of the 62.5 kHz channel), matching the known-good IQ recordings. 500 kHz and 1 MHz still work via --rate.
  • Faster failure paths (bounded burst/phase search, no full-rate fallback above 4x oversampling), so the receiver keeps up with the sample stream.
  • Added a diagnostic --dump-dir DIR option to save captured bursts as WAV files.

Includes:

  • MeshCoreSniffer.exe
  • librtlsdr.dll
  • libusb-1.0.dll
  • licenses/ (librtlsdr GPL-2.0, libusb LGPL-2.1)

Live RTL-SDR is the default. On Windows the RTL-SDR needs the WinUSB driver installed (e.g. with Zadig).

Usage:
MeshCoreSniffer.exe
MeshCoreSniffer.exe --key
MeshCoreSniffer.exe --freq 869.525
MeshCoreSniffer.exe --iq capture.wav

If live decode still fails, run with --verbose to see trigger, capture and decoder diagnostics.

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