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Groups > sci.physics.relativity > #420689

Re: GPS Again.

From Ckeho Baùkora <unukn@owyqar.og>
Newsgroups sci.physics.relativity
Subject Re: GPS Again.
Date 2017-05-26 21:01 +0000
Organization Aioe.org NNTP Server
Message-ID <oga53k$1v7k$1@gioia.aioe.org> (permalink)
References <oga4b8$1u3c$1@gioia.aioe.org>

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HGW, DSc. wrote:

> Do GPS signals travel at c in the ECI frame or c in the receiver's
> instantaneous frame? 

No, those travel only outside. The receivers don't really care.

> The algorithms assume the latter. 

No, but certainly the data they carry. The receivers gets the time info 
from the satellites as well. Encapsulated in the data. The local time, 
which can be off, is only used in startups. preamble.

> Why don't the two alternatives produce different answers?

There are no two alternatives.

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Thread

GPS Again. "HGW, DSc." <HG@....> - 2017-05-27 06:49 +1000
  Re: GPS Again. Ckeho Baùkora <unukn@owyqar.og> - 2017-05-26 21:01 +0000
    Re: GPS Again. "David (Lord Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2017-05-26 15:49 -0700
      Re: GPS Again. Ckeho Baùkora <unukn@owyqar.og> - 2017-05-27 09:20 +0000
  Re: GPS Again. dancouriann@gmail.com - 2017-05-26 15:50 -0700
  Re: GPS Again. Odd Bodkin <bodkinodd@gmail.com> - 2017-05-26 17:58 -0500
  GPS Again. "David (Lord Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2017-05-26 16:14 -0700
    GPS Again. "David (Lord Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2017-05-26 16:38 -0700
  Re: GPS Again. xxein1x1@gmail.com - 2017-05-26 16:25 -0700
  Re: GPS Again. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-05-27 00:18 +0000
  Re: GPS Again. Tom Roberts <tjroberts137@sbcglobal.net> - 2017-05-26 19:51 -0500
    Re: GPS Again. Ckeho Baùkora <unukn@owyqar.og> - 2017-05-27 10:37 +0000
      Re: GPS Again. Tom Roberts <tjroberts137@sbcglobal.net> - 2017-05-30 09:57 -0500
        Re: GPS Again. Helmut Wabnig <hwabnig@.- --- -.dotat> - 2017-05-30 20:52 +0200
          Re: GPS Again. Ernest Rivers <erwm@weicnne.ac> - 2017-05-30 19:17 +0000
          Re: GPS Again. Tom Roberts <tjroberts137@sbcglobal.net> - 2017-05-30 15:23 -0500
            Re: GPS Again. Helmut Wabnig <hwabnig@.- --- -.dotat> - 2017-05-30 22:53 +0200
              Re: GPS Again. Ernest Schwanenflügel <erwm@wanenf.oa> - 2017-05-30 20:59 +0000
                Re: GPS Again. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-05-31 00:42 +0200
              Re: GPS Again. Tom Roberts <tjroberts137@sbcglobal.net> - 2017-05-30 19:03 -0500
                Re: GPS Again. Serg io <invalid@invalid.com> - 2017-05-30 21:30 -0500
          Re: GPS Again. Serg io <invalid@invalid.com> - 2017-05-30 19:01 -0500
        Re: GPS Again. Ernest Rivers <erwm@weicnne.ac> - 2017-05-30 19:15 +0000
          Re: GPS Again. Sylvia Else <sylvia@not.at.this.address> - 2017-06-09 11:37 +1000
            Re: GPS Again. Jim Limey <eeug@dnne.ri> - 2017-06-09 14:32 +0000
              Re: GPS Again. Serg io <invalid@invalid.com> - 2017-06-09 12:51 -0500
                Re: GPS Again. Kitubu Nkyaku <akntuu@buwkau.kk> - 2017-06-09 18:52 +0000
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-10 09:23 +1000
                Re: GPS Again. Sylvia Else <sylvia@not.at.this.address> - 2017-06-10 11:23 +1000
              Re: GPS Again. Sylvia Else <sylvia@not.at.this.address> - 2017-06-10 11:21 +1000
                Re: GPS Again. Kitubu Nkyaku <akntuu@buwkau.kk> - 2017-06-10 10:42 +0000
                Re: GPS Again. Serg io <invalid@invalid.com> - 2017-06-10 19:38 -0500
                Re: GPS Again. Nými Icelulózy <ejienm@wzsfwe.ul> - 2017-06-16 11:30 +0000
                Re: GPS Again. Sегgi о <iinvalid@invalid.com> - 2017-06-16 10:40 -0500
                Re: GPS Again. Sylvia Else <sylvia@not.at.this.address> - 2017-06-11 11:11 +1000
                Re: GPS Again. Serg io <invalid@invalid.com> - 2017-06-10 21:20 -0500
                Re: GPS Again. Sylvia Else <sylvia@not.at.this.address> - 2017-06-11 12:31 +1000
                Re: GPS Again. Tom Roberts <tjroberts137@sbcglobal.net> - 2017-06-10 22:40 -0500
                Re: GPS Again. Serg io <invalid@invalid.com> - 2017-06-10 23:20 -0500
                Re: GPS Again. "HGW, DSc." <HG@....> - 2017-06-11 05:14 +1000
                Re: GPS Again. "Paul B. Andersen" <relativity@paulba.no> - 2017-06-10 22:16 +0200
                Re: GPS Again. "HGW, DSc." <HG@....> - 2017-06-11 07:19 +1000
                Re: GPS Again. xxein1x1@gmail.com - 2017-06-10 16:11 -0700
                Re: GPS Again. Gary Harnagel <hitlong@yahoo.com> - 2017-06-10 18:32 -0700
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-11 14:43 +1000
                Re: GPS Again. Gary Harnagel <hitlong@yahoo.com> - 2017-06-13 07:50 -0700
                Re: GPS Again. Lolek Atoru <oitiruc@rwuca.oa> - 2017-06-13 20:56 +0000
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-14 09:25 +1000
                Re: GPS Again. Gary Harnagel <hitlong@yahoo.com> - 2017-06-13 17:02 -0700
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-14 12:36 +1000
                Re: GPS Again. Gary Harnagel <hitlong@yahoo.com> - 2017-06-13 20:04 -0700
                Re: GPS Again. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-06-14 04:43 +0000
                Re: GPS Again. "HGW, DSc." <HG@....> - 2017-06-14 20:11 +1000
                Re: GPS Again. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-06-14 14:47 +0000
                Re: GPS Again. "Paul B. Andersen" <relativity@paulba.no> - 2017-06-11 22:35 +0200
                Re: GPS Again. Serg io <invalid@invalid.com> - 2017-06-11 15:44 -0500
                Re: GPS Again. Serg io <invalid@invalid.com> - 2017-06-11 18:03 -0500
                Re: GPS Again. Serg io <invalid@invalid.com> - 2017-06-11 19:00 -0500
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-12 11:39 +1000
                Re: GPS Again. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-06-12 02:33 +0000
                Re: GPS Again. Tom Roberts <tjroberts137@sbcglobal.net> - 2017-06-11 22:42 -0500
                Re: GPS Again. Serg io <invalid@invalid.com> - 2017-06-11 23:27 -0500
                Re: GPS Again. jimp@specsol.spam.sux.com - 2017-06-12 04:47 +0000
                Re: GPS Again. Serg io <invalid@invalid.com> - 2017-06-12 08:20 -0500
                Re: GPS Again. jimp@specsol.spam.sux.com - 2017-06-12 17:18 +0000
                Re: GPS Again. Prokaryotic Caspase Homolog <prokaryotic.caspase.homolog@gmail.com> - 2017-06-15 10:06 -0700
                Re: GPS Again. Kotovanich Nzerovu <ivhvruo@wovewvw.ev> - 2017-06-15 17:30 +0000
                Re: GPS Again. benj <benj@nobody.net> - 2017-06-12 18:15 -0400
                Re: GPS Again. jimp@specsol.spam.sux.com - 2017-06-12 22:32 +0000
                Re: GPS Again. benj <benj@nobody.net> - 2017-06-12 20:48 -0400
                Re: GPS Again. jimp@specsol.spam.sux.com - 2017-06-13 01:52 +0000
                Re: GPS Again. benj <benj@nobody.net> - 2017-06-13 19:57 -0400
                Re: GPS Again. jimp@specsol.spam.sux.com - 2017-06-14 00:46 +0000
                Re: GPS Again. Tom Roberts <tjroberts137@sbcglobal.net> - 2017-06-12 09:58 -0500
                Re: GPS Again. Selina Dieter <uiueeits@wlwtwstd.ci> - 2017-06-12 15:08 +0000
                Re: GPS Again. Serg io <invalid@invalid.com> - 2017-06-12 10:37 -0500
                Re: GPS Again. jimp@specsol.spam.sux.com - 2017-06-12 17:21 +0000
                Re: GPS Again. Selina Dieter <uiueeits@wlwtwstd.ci> - 2017-06-12 17:40 +0000
                Re: GPS Again. jimp@specsol.spam.sux.com - 2017-06-12 18:05 +0000
                Re: GPS Again. Selina Dieter <uiueeits@wlwtwstd.ci> - 2017-06-12 18:19 +0000
                Re: GPS Again. jimp@specsol.spam.sux.com - 2017-06-12 19:16 +0000
                Re: GPS Again. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-06-12 19:43 +0000
                Re: GPS Again. benj <benj@nobody.net> - 2017-06-12 18:25 -0400
                Re: GPS Again. Serg io <invalid@invalid.com> - 2017-06-12 18:45 -0500
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-12 10:35 +1000
                Re: GPS Again. Sylvia Else <sylvia@not.at.this.address> - 2017-06-12 11:05 +1000
                Re: GPS Again. Serg io <invalid@invalid.com> - 2017-06-11 23:29 -0500
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-12 20:12 +1000
                Re: GPS Again. Poutnik <poutnik4nntp@gmail.com> - 2017-06-12 13:54 +0200
                Re: GPS Again. Selina Dieter <uiueeits@wlwtwstd.ci> - 2017-06-12 12:47 +0000
                Re: GPS Again. "HGW, DSc." <HG@....> - 2017-06-13 04:13 +1000
                Re: GPS Again. Sylvia Else <sylvia@not.at.this.address> - 2017-06-13 12:59 +1000
                Re: GPS Again. mlwozniak@wp.pl - 2017-06-12 23:03 -0700
                Re: GPS Again. "HGW, DSc." <HG@....> - 2017-06-13 04:22 +1000
                Re: GPS Again. Sylvia Else <sylvia@not.at.this.address> - 2017-06-13 13:00 +1000
                Re: GPS Again. Tom Roberts <tjroberts137@sbcglobal.net> - 2017-06-13 13:32 -0500
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-14 10:09 +1000
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-14 09:34 +1000
                Re: GPS Again. Серг ио <invalid@invalid.com> - 2017-06-13 18:42 -0500
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-14 12:40 +1000
                Re: GPS Again. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-06-14 04:06 +0000
                Re: GPS Again. mlwozniak@wp.pl - 2017-06-14 01:20 -0700
                Re: GPS Again. Sегg iо <invalid@invalid.com> - 2017-06-13 23:19 -0500
                Re: GPS Again. Sегg iо <invalid@invalid.com> - 2017-06-13 23:46 -0500
                Re: GPS Again. "HGW, DSc." <HG@....> - 2017-06-14 20:07 +1000
                Re: GPS Again. Sегg iо <invalid@invalid.com> - 2017-06-14 09:17 -0500
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-17 08:26 +1000
                Re: GPS Again. benj <benj@nobody.net> - 2017-06-16 20:40 -0400
                Re: GPS Again. Ecembre Abin <umueuu@eibbwaw.ee> - 2017-06-17 08:05 +0000
                Re: GPS Again. "HGW, DSc." <HG@....> - 2017-06-17 22:20 +1000
                Re: GPS Again. Sегgi о <iinvalid@invalid.com> - 2017-06-17 07:58 -0500
                Re: GPS Again. benj <benj@nobody.net> - 2017-06-14 17:06 -0400
        Re: GPS Again. "HGW..." <hgw@....> - 2017-05-31 09:58 +1000
  Re: GPS Again. "Paul B. Andersen" <relativity@paulba.no> - 2017-05-27 07:36 +0200
    Re: GPS Again. "HGW... DSc." <hgw@....> - 2017-05-28 10:57 +1000
  Re: GPS Again. Rafael Valls Hidalgo-Gato <rvalls162@gmail.com> - 2017-05-31 07:02 -0700
    Re: GPS Again. "HGW..." <hgw@....> - 2017-06-01 09:00 +1000
      Re: GPS Again. Odd Bodkin <bodkinodd@gmail.com> - 2017-05-31 23:42 +0000
        Re: GPS Again. "HGW..." <hgw@....> - 2017-06-01 19:36 +1000
          Re: GPS Again. Gary Harnagel <hitlong@yahoo.com> - 2017-06-01 05:33 -0700
            Re: GPS Again. "HGW, DSc." <HG@....> - 2017-06-02 19:51 +1000
              Re: GPS Again. Gary Harnagel <hitlong@yahoo.com> - 2017-06-03 05:10 -0700
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-04 08:08 +1000
                Re: GPS Again. Gary Harnagel <hitlong@yahoo.com> - 2017-06-03 15:27 -0700
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-04 08:50 +1000
                Re: GPS Again. pnalsing@gmail.com - 2017-06-03 19:37 -0700
                Re: GPS Again. Poutnik <poutnik4nntp@gmail.com> - 2017-06-04 07:09 +0200
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-04 16:06 +1000
                Re: GPS Again. Prudence Youngs <usue@weuem.ge> - 2017-06-04 11:11 +0000
                Re: GPS Again. Poutnik <poutnik4nntp@gmail.com> - 2017-06-04 14:23 +0200
                Re: GPS Again. Prudence Youngs <usue@weuem.ge> - 2017-06-04 12:33 +0000
                Re: GPS Again. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-06-04 18:17 +0000
                Re: GPS Again. Gary Harnagel <hitlong@yahoo.com> - 2017-06-04 05:06 -0700
                Re: GPS Again. Prudence Youngs <usue@weuem.ge> - 2017-06-04 12:12 +0000
                Re: GPS Again. anne <0140519@gmail.com> - 2017-06-04 05:32 -0700
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-05 08:48 +1000
                Re: GPS Again. Gary Harnagel <hitlong@yahoo.com> - 2017-06-04 16:09 -0700
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-05 11:12 +1000
                Re: GPS Again. Gary Harnagel <hitlong@yahoo.com> - 2017-06-04 19:24 -0700
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-05 16:38 +1000
                Re: GPS Again. Gary Harnagel <hitlong@yahoo.com> - 2017-06-05 04:49 -0700
                Re: GPS Again. mlwozniak@wp.pl - 2017-06-05 05:53 -0700
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-06 08:38 +1000
                Re: GPS Again. Gary Harnagel <hitlong@yahoo.com> - 2017-06-05 20:30 -0700
                Re: GPS Again. Poutnik <poutnik4nntp@gmail.com> - 2017-06-04 15:00 +0200
                Re: GPS Again. Prudence Youngs <usue@weuem.ge> - 2017-06-04 11:10 +0000
                Re: GPS Again. Odd Bodkin <bodkinodd@gmail.com> - 2017-06-04 13:25 +0000
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-05 08:46 +1000
                Re: GPS Again. Odd Bodkin <bodkinodd@gmail.com> - 2017-06-04 23:13 +0000
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-05 11:16 +1000
                Re: GPS Again. Odd Bodkin <bodkinodd@gmail.com> - 2017-06-05 09:26 -0500
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-06 08:46 +1000
                Re: GPS Again. Odd Bodkin <bodkinodd@gmail.com> - 2017-06-05 23:17 +0000
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-07 10:11 +1000
                Re: GPS Again. Odd Bodkin <bodkinodd@gmail.com> - 2017-06-07 03:04 +0000
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-07 14:58 +1000
                Re: GPS Again. Odd Bodkin <bodkinodd@gmail.com> - 2017-06-07 12:17 -0500
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-08 09:06 +1000
                Re: GPS Again. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-06-05 00:49 +0000

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