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I began this page, using LAAS as a template. JPALS is a military extension of LAAS technology, modified for military use.
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Is it really true that JPALS is a "spinoff" from LAAS? I thought it was developed independantly? [[User:Maury Markowitz|Maury]] 15:13, 14 June 2006 (UTC)
No - LAAS work began before JPALS was little more than a concept. JPALS incorporates most of the LAAS technology, with some key additions that provide authentication, encryption, and anti-jam measures. These measures prevent unauthorized use, deter hijacking of the signal, and guard against signal degredation by enemy means. Both systems were developed simultaneously, with significant overlap. There's not a lot of unclassified information available right now, but it appears that JPALS units installed aboard military aircraft will be able to use LAAS signals, as well as the more robust JPALS signals. Any other possibility, to put it bluntly, doesn't pass the sanity test, particularly given the FAA's emphasis towards phasing out non-WAAS/LAAS systems for all but the most heavily trafficked airfields. In fact, there's been considerable talk about authorizing handheld units for instrument approaches, provided they meet certain RAIM requirements, as well as the current requirements governing IAP database currency, airfield and approach selection procedures, etc. This would bust cheap instrument approach procedures wide open, with a sub-$500 handheld being able to provide equivalent accuracy in a WAAS environment, and better than CAT-IIIc accuracy in an LAAS environment. Expect to see new FAA regs governing the programmed display options, to ensure adherency to generally accepted standards.
Edited for grammer. <small>—The preceding [[Wikipedia:Signatures|unsigned]] comment was added by [[Special:Contributions/{{{IP|{{{User|132.25.0.207}}}}}}|{{{IP|{{{User|132.25.0.207}}}}}}]] ([[User talk:{{{IP|{{{User|132.25.0.207}}}}}}|talk]]) {{{Time|07:58, August 20, 2007 (UTC)}}}</small><!-- Template:UnsignedIP --> <!--Autosigned by SineBot-->
== External links modified ==
Hello fellow Wikipedians,
I have just modified 4 external links on [[Joint Precision Approach and Landing System]]. Please take a moment to review [https://en.wikipedia.org/w/index.php?diff=prev&oldid=777317570 my edit]. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit [[User:Cyberpower678/FaQs#InternetArchiveBot|this simple FaQ]] for additional information. I made the following changes:
*Corrected formatting/usage for http://gps.faa.gov/Library/laas-f-text.htm
*Added archive https://web.archive.org/web/20060311054600/http://www.raytheon.com/products/jpals/ to http://www.raytheon.com/products/jpals/
*Added archive https://web.archive.org/web/20140911053740/http://www.navair.navy.mil/index.cfm?fuseaction=home.displayPlatform&key=8559E3E9-42F1-4A08-876B-5F2E7FA6AAB2 to http://www.navair.navy.mil/index.cfm?fuseaction=home.displayPlatform&key=8559E3E9-42F1-4A08-876B-5F2E7FA6AAB2
*Added archive https://web.archive.org/web/20140911052320/http://www.navair.navy.mil/index.cfm?fuseaction=home.PhotoGalleryDetail&key=62593B59-C3A0-454F-8CA4-594D953A0005 to http://www.navair.navy.mil/index.cfm?fuseaction=home.PhotoGalleryDetail&key=62593B59-C3A0-454F-8CA4-594D953A0005
When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.
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Cheers.—[[User:InternetArchiveBot|'''<span style="color:darkgrey;font-family:monospace">InternetArchiveBot</span>''']] <span style="color:green;font-family:Rockwell">([[User talk:InternetArchiveBot|Report bug]])</span> 13:34, 26 April 2017 (UTC)
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