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Transmitters / GPS Sim
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GPS-Sim.md
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GPS-Sim.md
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This app allows you to broadcast GPS baseband signal data streams. You can use [gps-sdr-sim](https://github.com/osqzss/gps-sdr-sim) to generate data for this app.
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## Example
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`gps-sdr-sim -e brdc3540.14n -l 30.286502,120.032669,100 -b 8`
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That will create a `gpssim.bin` file that you rename to `BBD_NNNN.C8` and then create `BBD_NNNN.TXT` with:
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```
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sample_rate=2600000
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center_frequency=1575420000
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```
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Copy to your PortaPack MicroSD and open the file from the GPS Sim app.
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## References
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https://blog.csdn.net/shukebeta008/article/details/103270214
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