# RS41 Decoding

> RS41 Decoding documents the Vaisala RS41 radiosonde's radio frame format, from FSK audio and bit ordering to XOR whitening, Reed–Solomon data, frame types and CRC-protected blocks. Separate notes cover RS41 variants and extended XDATA payloads, including the OIF411 ozone interface.

- Type: Documentation
- Targets: Protocol
- Category: Protocol analysis tools
- Relationship: Learning resource
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/bazjo/RS41_Decoding>
- Primary source: <https://github.com/bazjo/RS41_Decoding/blob/702553b114b13370afb4a7d86119b03fb94273b1/README.md>
- Catalog page: <https://awesomerea.org/resources/rs41-decoding/>
- Record JSON: <https://awesomerea.org/resources/rs41-decoding/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/rs41-decoding/index.md)

## Requirements & limits

- **Scope:** The repository extends the documentation of Zilog80's RS decoder (rs1729/RS).
- **Limits:** The author lists unresolved STATUS and MEAS bytes, subframes and parts of error correction.
- **License:** No licence file in the repository.

## Primary sources

1. <https://github.com/bazjo/RS41_Decoding/blob/702553b114b13370afb4a7d86119b03fb94273b1/README.md>
2. <https://github.com/bazjo/RS41_Decoding/blob/702553b114b13370afb4a7d86119b03fb94273b1/RS41-SGP%2BXDATA/README.md>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.