On 3/1/2012 7:43 PM, Ron Frazier (NTP) wrote:
On 2/29/2012 6:12 PM, Chris Albertson wrote:
On Wed, Feb 29, 2012 at 2:29 PM, Bruce Lillybruce.li...@gmail.com
wrote:
On Wed, 29 Feb 2012 14:16:23 +, Ron Frazier (NTP) wrote:
Other than the Sure board which has been mentioned, are there any
On 2012-03-01, David J Taylor david-tay...@blueyonder.co.uk.invalid wrote:
Teh standard is the Gamin GPS 18x (make sure to get a newer unit or you
will have to upload a patch to it to fix the problem that it sometimes
sends teh nmea sentences too late). The Sure I am getting worried
about-- I
On Wed, Feb 29, 2012 at 11:59 PM, unruh un...@invalid.ca wrote:
Whilst the Oncore UT+ which Chris mentions may have better ultimate
performance, I don't think you will see the difference in an NTP
application on the great majority of PCs. It doesn't come with an
Persuading a PC to
On 2/29/2012 6:12 PM, Chris Albertson wrote:
On Wed, Feb 29, 2012 at 2:29 PM, Bruce Lillybruce.li...@gmail.com wrote:
On Wed, 29 Feb 2012 14:16:23 +, Ron Frazier (NTP) wrote:
Other than the Sure board which has been mentioned, are there any other
modern, hi sensitivity, timing
On 2012-03-01, Chris Albertson albertson.ch...@gmail.com wrote:
On Wed, Feb 29, 2012 at 11:59 PM, unruh un...@invalid.ca wrote:
Whilst the Oncore UT+ which Chris mentions may have better ultimate
performance, I don't think you will see the difference in an NTP
application on the great
On Thu, Mar 1, 2012 at 4:43 PM, Ron Frazier (NTP)
timekeepingntpl...@c3energy.com wrote:
A) You said it has to be a timing GPS. How do you tell? I haven't seen
that term in any of the data sheets.
You down load the user manual and read it BEFORE you place an order on
the GPS receiver. Also
Left off the biggest and best source of information. read the source
code files for the GPS reference clock drivers that comes with NTP.
If there is no ref clock driver you can't use the GPS. But there are
liley drivers for every GPS, but do check.
How to program the GPS? The NTP ref clock
OH! There it is. Now I see it.
Sincerely,
Ron
On 3/1/2012 9:15 PM, Chris Albertson wrote:
You did not see timing on the data sheet because it was not a timing
GPS. Here is the data sheet for the current in-production version of
the Oncore (it sells for about $60)
On 2012-03-02, Ron Frazier (NTP) timekeepingntpl...@c3energy.com wrote:
On 2/29/2012 6:12 PM, Chris Albertson wrote:
On Wed, Feb 29, 2012 at 2:29 PM, Bruce Lillybruce.li...@gmail.com wrote:
On Wed, 29 Feb 2012 14:16:23 +, Ron Frazier (NTP) wrote:
Other than the Sure board
Ron Frazier (NTP) wrote:
Hi all,
Is anyone using the Trimble Resolution T GPS for timing? I was looking
at an ad for one on ebay. For my purposes, any accuracy under 1 ms is
great. I don't have to have 15 ns. Of course, smaller numbers are always
better. Is this device hard to setup and program
Hi Terje,
Thanks for the info. I really want to run my antenna indoors if
possible, so this unit might not be for me. It's good to know about the
sawtooth correction stuff though.
I forgot to post the original link to the Ebay auction. It's item #
260769578277. The link below should
On 2012-02-29, Ron Frazier (NTP) timekeepingntpl...@c3energy.com wrote:
Hi all,
Is anyone using the Trimble Resolution T GPS for timing? I was looking
at an ad for one on ebay. For my purposes, any accuracy under 1 ms is
great. I don't have to have 15 ns. Of course, smaller numbers are
On 2012-02-29, Ron Frazier (NTP) timekeepingntpl...@c3energy.com wrote:
Hi Terje,
Thanks for the info. I really want to run my antenna indoors if
possible, so this unit might not be for me. It's good to know about the
sawtooth correction stuff though.
I forgot to post the original link
On Wed, Feb 29, 2012 at 8:58 AM, Chris Albertson
albertson.ch...@gmail.com wrote:
On Wed, Feb 29, 2012 at 7:56 AM, unruh un...@invalid.ca wrote:
Timing gpss like the Oncore UT+ sends the known PPS offset as part of
the serial timestream, telling NTPD (or any other recipient) how
early/late
On 2/29/2012 12:45 AM, Ron Frazier (NTP) wrote:
Hi all,
Is anyone using the Trimble Resolution T GPS for timing? I was looking
at an ad for one on ebay. For my purposes, any accuracy under 1 ms is
great. I don't have to have 15 ns. Of course, smaller numbers are always
better. Is this device
Richard B. Gilbert writes:
ISTR that only three satellites are required to determine the location
of your antenna.
Only if you already know either one of your three space cooordinates or
the time. Four equations, four unknowns.
Once this position is accurately known, you can live with a
On Wed, 29 Feb 2012 14:16:23 +, Ron Frazier (NTP) wrote:
Other than the Sure board which has been mentioned, are there any other
modern, hi sensitivity, timing GPS's which cost less than $ 100. Many
of the ones mentioned seem to be older technology like this Trimble.
I use a Garmin 17x
On Wed, Feb 29, 2012 at 2:29 PM, Bruce Lilly bruce.li...@gmail.com wrote:
On Wed, 29 Feb 2012 14:16:23 +, Ron Frazier (NTP) wrote:
Other than the Sure board which has been mentioned, are there any other
modern, hi sensitivity, timing GPS's which cost less than $ 100. Many
of the ones
On 2012-02-29, Richard B. Gilbert rgilber...@comcast.net wrote:
On 2/29/2012 12:45 AM, Ron Frazier (NTP) wrote:
Hi all,
Is anyone using the Trimble Resolution T GPS for timing? I was looking
at an ad for one on ebay. For my purposes, any accuracy under 1 ms is
great. I don't have to have 15
unruh wrote:
I have records from about 38 satellites all of which
were tracked at one time or another by my system.
IIRC,
there have been something like 63 GPS SVs;
some never made it into orbit,
others decommissioned, failed, testing, ...
31 GPs SVs currently in use,
although one of
BlackList wrote:
unruh wrote:
I have records from about 38 satellites all of which
were tracked at one time or another by my system.
IIRC,
there have been something like 63 GPS SVs;
-^ NAVSTAR
some never made it into orbit,
others decommissioned,
unruh un...@invalid.ca wrote in message
news:EOy3r.7458$_63.7...@newsfe19.iad...
On 2012-02-29, Richard B. Gilbert rgilber...@comcast.net wrote:
[]
The last time I heard there were something like 27 GPS satellites in
service. There are usually something like 8 satellites above the
horizon.
Teh standard is the Gamin GPS 18x (make sure to get a newer unit or you
will have to upload a patch to it to fix the problem that it sometimes
sends teh nmea sentences too late). The Sure I am getting worried
about-- I thin kthe antenna they send with it is defective sometimes.
Bill,
Yours is
Hi all,
Is anyone using the Trimble Resolution T GPS for timing? I was looking
at an ad for one on ebay. For my purposes, any accuracy under 1 ms is
great. I don't have to have 15 ns. Of course, smaller numbers are
always better. Is this device hard to setup and program for PPS and use
24 matches
Mail list logo
