Vaisala RS41-SG Weather Balloon (Radiosonde)

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Vaisala RS41-SG Weather Balloon (Radiosonde)
Rs41 radiosonde wf.png
Frequencies 400 MHz,406 MHz
Frequency Range 400 MHz - 406 MHz
Mode NFM
Modulation GFSK
Emission Designator
Bandwidth 4.8 kHz
Location Worldwide
Short Description Weather balloon (radiosonde) telemetry data.
I/Q Raw Recording
Audio Sample

Vaisala Radiosondes: RS92-SGP - RS41-SG - RS92-KL

Vaisala RS41-SG and RS41-SGP Weather Balloons.


GFSKGaussian Frequency-Shift Keying deviation Peak-Peak is 4.8 kHzKiloHertz (kHz) 10^3 Hz, with speed at 4800 bpsBits per second (bps).


Typically around 405 MHzMegaHertz (MHz) 10^6 Hz (400-406 MHzMegaHertz (MHz) 10^6 Hz).


RS41-SG with the OIF411 Ozone Sensor module:

Decoding Software[edit]

Hobby Level Software
  • SondeMonitor - Windows or Wine, shareware
  • RS - RS1729 Radiosonde Decoder (compiles on Linux and Windows)
  • dxlAPRS - free toolchain for radiosonde decoding (Linux)
  • RS41 Tracker - Windows, freeware

Decoding Tutorials[edit]

Video Examples[edit]

Additional Links[edit]

Additional Images[edit]