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SP5LOT DVB-S2 decoder and MX Uploader (SkyEdge) 1.0.1

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@SP5LOT SP5LOT released this 30 Sep 13:45
· 2 commits to main since this release

Windows receiver for DVB-S2 video from high-altitude balloons (RTL-SDR or HackRF One) with SSDV photos and upload to the SkyEdge MX merger, plus MX Uploader for other decoders.

New in 1.0.1

  • Decoding a recorded IQ file: in Source / SDR choose IQ file and pick a recording (SatDump, rtl_sdr, HackRF). The format and the sample rate are read from the file name. How to use it: Decoding a recorded IQ file.
  • When decoding a file, the MODCOD is always detected automatically (AUTO), so a recording made with another MODCOD decodes too.
  • When decoding a file, nothing is sent to the MX merger (no connection at all), even with Upload to MX server ticked. Live reception with RTL-SDR or HackRF works as in 1.0.0.
  • Sample recording SP5LOT-dvbs2-sample-iq.zip: 19.5 s of a real signal (QPSK 3/4, 500000 symbols/s, 2.048 MS/s) to try it.
  • MX Uploader: no changes, only the version number.

Inside the receiver, the DVB-S2 demodulator is leandvb from leansdr by pabr, and the LDPC decoder is ldpc_tool by Ahmet Inan (adapted by pabr), both with our patches. This is an unofficial program, not affiliated with the leansdr author: please report problems here, not upstream.

Download: extract all files of the ZIP into one folder and run leandvb_gui.exe (receiver) or mx_uploader.exe (MX Uploader). How to use them: the README on the main page (also README.txt in the ZIPs). Updating from 1.0.0: extract the new ZIP into a new folder and copy leandvb_gui_settings.ini (and mx_uploader.ini) from the old folder to keep your settings.

File What it is SHA-256
SP5LOT-dvbs2-decoder-1.0.1-win64.zip receiver 1.0.1 (build 45) and MX Uploader 1.0.1 (build 11), all in one 2e195a3de3f765074b3966d7735b99dead4cd71d7913a8c07f93a9e3b23765ca
SP5LOT-mx-uploader-1.0.1-win64.zip only MX Uploader 1.0.1 (build 11), for stations that receive with another decoder f6ff2ee7eba05cbd2e6507aa99ad04dac7231bd1e6f37d0f09284b519bda828e
SP5LOT-dvbs2-sample-iq.zip sample IQ recording to try decoding from a file d1495e47bbfe8029cdffd276776d83ff2eba11873da7e93f0fa911b10fde3845
SP5LOT-dvbs2-decoder-1.0.1-source.zip full source code, our engine patches and BUILDING.md d7c4f10886cf2eafed0fdb4677f66c63747a2293c2c89ce1389e999df90f00d5

The automatic Source code (zip / tar.gz) archives of GitHub contain only the files of the main page (README, license).
The source code of the programs is SP5LOT-dvbs2-decoder-1.0.1-source.zip.

Known limitations in 1.0.1: frequency and symbol rate are not remembered, the bundled RTL-SDR library has no support for the RTL-SDR Blog V4 (not tested with a V4), HackRF may rarely need a program restart. Tested on Windows 10. Problems and ideas: please open an issue.

License: GNU GPL v3. Third-party components: THIRD_PARTY.md.