u/RidenRead_Official — reddlx

Free short eBook on GNSS — signals, constellations, error sources, RTK and practical navigation

I've published a short technical eBook on GNSS navigation — eight chapters covering how satellite navigation actually works, from signal propagation through the constellations (GPS, GLONASS, Galileo, BeiDou) to receivers, error sources, differential corrections (SBAS, RTK, PPP), coordinate systems and datums, and practical waypoint/route planning.

Written for the technically curious reader rather than the specialist. No jargon where plain language works. About 20-25 minutes to read through.

Free to read, no signup required: https://jeffswalk.com/rnrnew/rnrminisummarynoad.php?id=1452

I'm a retired engineer with a long interest in positioning systems. Built with AI assistance — happy to discuss any of the technical content or correct anything that's wrong.

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u/RidenRead_Official — 1 month ago

▲ 129 r/Toowoomba+2 crossposts

I’m an 85yo explorer who walked across Australia twice. My son and I run a text-only, free eLibrary for commuters, and I just finished our book on the geography of Lake Turkana.

G'day. In my younger days, I spent a lot of time walking solo through harsh, dry country—including crossing the Australian continent twice (once unsupported). I have a lifetime obsession with remote, arid landscapes and extreme environments.

To keep my mind active from bed, my son and I have been building a text-only, ad-supported eLibrary built specifically for deep reading on mobile devices without social media noise, tracker clutter, or pop-ups.

I just finalized our newest title focusing on one of the ultimate geographical anomalies on the planet: Lake Turkana.

It's the world's largest permanent desert lake, trapped in a blistering volcanic half-graben rift basin with no outlets. The water is a brilliant jade-green from cyanobacteria, it's packed with giant Nile crocodiles, and it is surrounded by the unique ash layers that preserved the oldest human footprints and fossils on Earth.

No tracking, no sign-ups, just raw geographical facts. If you want a clean, distraction-free read for your commute, here is our deep dive on the Jade Sea:

https://ridenread.jeffswalk.com/rnrminisummary.php?id=1426

u/RidenRead_Official — 1 day ago

▲ 143 r/vintagecomputing+1 crossposts

I ran an early Australian ISP on SCO Unix in the 90s. My son and I built a free eLibrary for commuters, and I just fished out our book on Multics and the birth of Unix.

G'day. Back in the day, my first email address was on the old .oz domain running off a 386 with a 16-port Specialix board and 1200 bps modems. I’m 85 now, and to keep my mind sharp, my son and I have been building a text-only, free-to-read eLibrary designed specifically for deep reading without the social media noise.We published our deep dive: "Computer Operating Systems: From Space Travel to Smartphones." The first chapter covers the ambitions, bloat, and ultimate failure of Multics, and how Ken Thompson and Dennis Ritchie used those lessons to build the foundations of what we use today.No tracking, no paywalls, just raw computing history: https://ridenread.com/rnr/rnrminisummary.php?id=319

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u/RidenRead_Official — 1 month ago