APRS Protocol Specification¶

Overview¶

This is the official APRS Protocol Specification - formerly maintained as APRS101.pdf.

The latest version of the specification is always available on the APRS Protocol Specification website at:

https://aprs-protocol-specification.aprsfoundation.org

Any previous versions of the documentation maintained in PDF format, or otherwise, are null and void. Please archive or delete them.

Webification - IN PROCESS¶

The documentation is in the process of being converted to native Markdown. Markdown is a lightweight, easy-to-use, markup language. It's very easy to learn, requires nothing more than a text editor, and ensures documentation is highly portable.

Markdown is very well-documented and allows for eliminating vendor proprietary formatting and extensions that make it difficult to port documentation to other platforms.

Index - Markitdown Conversion¶

Original Sources & Conversions¶

APRS 1.2b - Markdown - Doctly¶

Converted from PDF to Markdown by Doctly

https://aprs-protocol-specification/source/markdown-doctly/APRS12b.pdf

APRS 1.2c - Markdown - Doctly¶

Converted from PDF to Markdown by Doctly

https://aprs-protocol-specification/source/markdown-doctly/APRS12c.pdf

APRS 1.2b - Markdown - pandoc¶

Converted from PDF to Markdown by pandoc - "a universal (open source) document converter."

https://aprs-protocol-specification/source/markdown-pandoc/APRS12b.pdf

APRS 1.2c - Markdown - pandoc¶

Converted from PDF to Markdown by pandoc - "a universal (open source) document converter."

https://aprs-protocol-specification/source/markdown-pandoc/APRS12c.pdf

APRS 1.2b - Microsoft Word¶

Converted from PDF to Microsoft Word by Adobe Acrobat Professional - version 2024.005.20320.

Best effort conversion.

https://aprs-protocol-specification/source/word/APRS12b.docx

APRS 1.2c - Microsoft Word¶

Converted from PDF to Microsoft Word by Adobe Acrobat Professional - version 2024.005.20320.

Best effort conversion.

https://aprs-protocol-specification/source/word/APRS12c.docx