Re: [time-nuts] GPS Usage

2011-03-09 Thread Poul-Henning Kamp
In message 55371.12.6.201.2.1299648580.squir...@popaccts.quikus.com, J. Fors ter writes: in reality more than 90 percent of the users of GPS worldwide use it primarily for a timing reference. That makes the LORAN shutdown look even more idiotiuc! Well, how can you argue with closing a system

Re: [time-nuts] GPS Usage

2011-03-09 Thread Hal Murray
p...@phk.freebsd.dk said: The reason LORAN-C got killed was that DoD/DHS couldn't jam it if a terrorist with a suitcase-nuke was trying to find his way to Congress. Why can't they jam it? It's just a matter of signal strength. If want to jam a small region, they can use a local

Re: [time-nuts] GPS Usage

2011-03-09 Thread Poul-Henning Kamp
In message 20110309082926.d5f9f800...@ip-64-139-1-69.sjc.megapath.net, Hal Mu rray writes: p...@phk.freebsd.dk said: The reason LORAN-C got killed was that DoD/DHS couldn't jam it if a terrorist with a suitcase-nuke was trying to find his way to Congress. Why can't they jam it? They can, All

Re: [time-nuts] GPS Usage

2011-03-09 Thread Javier Herrero
El 09/03/2011 06:29, J. Forster escribió: This is a surprise: in reality more than 90 percent of the users of GPS worldwide use it primarily for a timing reference. This is a phallacy, except if we are taking into account indirect GPS users, i.e. admitting that a credit card user is a GPS

Re: [time-nuts] GPS Usage

2011-03-09 Thread Poul-Henning Kamp
In message 4d7740b8.2040...@hvsistemas.es, Javier Herrero writes: El 09/03/2011 06:29, J. Forster escribi=F3: This is a surprise: in reality more than 90 percent of the users of GPS worldwide use it primarily for a timing reference. This is a phallacy, except if we are taking into account

Re: [time-nuts] GPS Usage

2011-03-09 Thread paul swed
OK really getting off topic S without GPS timing Celphones would not work. How is this a bad thing? That means the people talking and texting while driving, might actually stay in their lanes. Sounding pretty good to me. We did not shut down Loran for some crazy plot. We did it to save the

Re: [time-nuts] GPS Usage

2011-03-09 Thread jimlux
Lots of people use GPS for timing because it's cheaper or more convenient in a budgetary sens than alternate approaches. Here at JPL, it's easier, in general, for me to put a GPS timing receiver and GPSDO in a lab than it is to try and run cables from the house sources. The latter requires

Re: [time-nuts] GPS Usage

2011-03-09 Thread David I. Emery
On Wed, Mar 09, 2011 at 08:01:31AM +, Poul-Henning Kamp wrote: Well, how can you argue with closing a system that was aiding terrorists ? The reason LORAN-C got killed was that DoD/DHS couldn't jam it if a terrorist with a suitcase-nuke was trying to find his way to Congress. Is

Re: [time-nuts] GPS Usage

2011-03-09 Thread gary
A good thing every air force base doesn't have a homing beacon. Oh wait, never mind. On 3/9/2011 10:54 PM, David I. Emery wrote: On Wed, Mar 09, 2011 at 08:01:31AM +, Poul-Henning Kamp wrote: Well, how can you argue with closing a system that was aiding terrorists ?

Re: [time-nuts] GPS Usage

2011-03-09 Thread Poul-Henning Kamp
In message 20110310065452.ge6...@pig.dieconsulting.com, David I. Emery writ es: The reason LORAN-C got killed was that DoD/DHS couldn't jam it if a terrorist with a suitcase-nuke was trying to find his way to Congress. Is this tongue in cheek, or do you have any actual basis for stating

[time-nuts] GPS Usage

2011-03-08 Thread J. Forster
This is a surprise: in reality more than 90 percent of the users of GPS worldwide use it primarily for a timing reference. That makes the LORAN shutdown look even more idiotiuc! -John == Copied from http://www.gpsworld.com/defense/gps-insights-april-2007-8428: I