2015-03-03 07:50:46 +08:00
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QSpectrumAnalyzer
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=================
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Spectrum analyzer for RTL-SDR (GUI for rtl_power based on PyQtGraph)
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2015-03-03 08:07:00 +08:00
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Screenshot
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2015-03-03 07:50:46 +08:00
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Requirements
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------------
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2015-03-03 08:07:00 +08:00
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- Python >= 3.3
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2015-03-03 07:50:46 +08:00
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- PyQt >= 4.5
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- PyQtGraph (http://www.pyqtgraph.org)
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- rtl-sdr (https://github.com/keenerd/rtl-sdr)
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You should use Keenerds fork of rtl-sdr (latest Git revision),
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bacause `rtl_power` in original rtl-sdr (from osmocom.org) is broken
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(especially when used with cropping).
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Usage
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-----
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Start QSpectrumAnalyzer by running `qspectrumanalyzer`.
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2015-03-04 07:15:20 +08:00
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If you don't have `rtl_power` executable in system path, you can specify
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2015-03-04 07:17:07 +08:00
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location of it manually in _File_ -> _Settings_. You can also specify waterfall
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2015-03-04 07:15:20 +08:00
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plot history size in there. Default is 100 lines, be aware that really large
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sweeps (with a lot of bins) would require a lot of system memory, so don't make
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this number too big.
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Controls should be intuitive, but if you want consistent results, you should
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2015-03-04 07:21:20 +08:00
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turn off automatic gain control (set it to some fixed number) and also set
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2015-03-04 07:15:20 +08:00
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crop to 20% or more. For finding out ppm correction factor for your rtl-sdr
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stick, use [kalibrate-rtl](https://github.com/steve-m/kalibrate-rtl).
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You can move and zoom plot with mouse, change plot settings or export plots
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from right-click menu. Waterfall plot black/white levels and color lookup
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table can be changed in mini-histogram widget.
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