Thank you to Mario Ančić for informing us about his recently released software, "Radiosonde-decoder-and-tracker-for-Windows". As the name implies, this is Windows only software that can decode and track radiosondes.

A radiosonde is a lightweight instrument package typically carried by a weather balloon to collect atmospheric data such as temperature, humidity, pressure, and GPS position. It transmits this data back to the ground via radio signals. Using an RTL-SDR or another software-defined radio (SDR) along with appropriate decoding software, hobbyists or researchers can receive, decode, and visualize these signals.

Mario has shared the following information about his software:

The program supports four types of sondes: RS-41, M10, M20, and DFM (PS-15, DFM09, DFM17 tested).

The program is designed to run without any additional installations or software, except for the ZADIG driver for RTL-SDR (RTL2832). It uses RTL-FM for SDR reception and the popular open-source RS1729 for decoding. Decoding is also possible via the audio input (using Virtual Audio Cable and SDR# or SDR++ or any other SDR software).

The received data can be sent to servers such as Radiosondy, Wettersonde, or other APRS-based weather radiosonde servers. Optionally, the data can be sent to two servers simultaneously.

Further information and the downloadable program are available in the Release section on the page:
recently released software, "Radiosonde-decoder-and-tracker-for-Windows"

The program is intended for 64-bit Windows OS (Windows 7 or newer) and is Freeware.

We note that the software is freeware; however, it does not appear open source, as no code has been shared.