2026-05-02T22:13:14Z https://yabu.me Cillian O'Driscoll https://yabu.me/npub1dh9qr9p2jluwhlper3p748uxtuvtkwy94zvc3nf4cklnxf4gwggs9ylpun https://yabu.me/nevent1qqsrmz0xcl6nt800rm0saylrrsa4f59yg6atxje82qzvd6d3je5k9jczypku5qv592tl36lu8ywy865lse033wecsk5fnzxdxhzm7vex4pepzsxcuj9 In reply to <a href='/nevent1qqsv2r6p395mnk8253yhnw02h0j5mf5ucg8r2s6p4v5jzyqee2k2psqhpw9d8'>nevent1q…w9d8</a><br/>_________________________<br/><br/>signal level authentication is also on the way for Galileo, also as a free service, albeit with some limitations when compared to full signal encryption that is only available to authorised users. Here&#39;s a nice overview from a colleague of mine <a href="https://www.navnin.nl/new/wp-content/uploads/2024/09/2024-09-12-5-Workshop__Willems_final.pdf">https://www.navnin.nl/new/wp-content/uploads/2024/09/2024-09-12-5-Workshop__Willems_final.pdf</a> 2025-02-22T22:57:17Z https://yabu.me/nevent1qqsxvkwtk4q8xgjczh20flf7r54zv0qt2w9pahzcx6hxep80nnma5gczypku5qv592tl36lu8ywy865lse033wecsk5fnzxdxhzm7vex4pepzk989dw In reply to <a href='/nevent1qqs0a5dye9m09x2ustumz56hzphzetcnyprhtlrr6sk99t3t8vhj7gcytwmq5'>nevent1q…wmq5</a><br/>_________________________<br/><br/>in theory, no system can do this. In practice, since GPS is traditionally more available and more reliable than any of the others, many receivers work on a &#34;GPS first&#34; basis. This is particularly true for receivers with a long legacy, where multi constellation capabilities were added on over time. If GPS were to become unreliable or go offline it is likely that a significant install base of existing receivers would not function correctly. 2025-02-22T22:21:03Z https://yabu.me/nevent1qqsvpq90g6h3yphc7m0smcqgw987jhe6f9aspfh5dfn5rm080ngxhjqzypku5qv592tl36lu8ywy865lse033wecsk5fnzxdxhzm7vex4pepzwzperh In reply to <a href='/nevent1qqs8et5753yac4lwuj0vqp9ms56gptwm509dy2s9lq892xxm34crrec5qfmpl'>nevent1q…fmpl</a><br/>_________________________<br/><br/>That is certainly true. The hypothetical scenario that <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1u5exd4naj5cq5yfr87dl8c33pswsvl54mpx3gzrcn8paza22genskh4glf" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>Daniel Estévez</span> (<span class="italic">npub1u5e…4glf</span>)</a></span> raised is one where the US intentionally degrades only the GPS signal (which they used to do prior to May 2000) but all other signals remain unaffected. 2025-02-22T21:03:37Z https://yabu.me/nevent1qqs0kd5rtkwd3yueefa4kdddtvvzkyyeanuxt6qqszhthv97vahrymgzypku5qv592tl36lu8ywy865lse033wecsk5fnzxdxhzm7vex4pepzx4452s In reply to <a href='/nevent1qqsfqzu9wn8fqs7qw888d84f89r8haudaq44kgevvg27d93auw8yhgc683lvx'>nevent1q…3lvx</a><br/>_________________________<br/><br/>I think even the simplest consumer equipment nowadays implements some form of RAIM, I&#39;d be surprised if the sudden introducing of SA caused major errors in any multi constellation receiver...although you never can be sure. It would be an interesting experiment to run 2025-02-22T20:28:43Z