Re: [ntp:questions] Sure gps looses all sattelite fixes

2012-02-25 Thread David J Taylor
unruh un...@invalid.ca wrote in message news:qfS1r.13334$pc2.3...@newsfe13.iad... On 2012-02-24, David J Taylor david-tay...@blueyonder.co.uk.invalid wrote: unruh un...@invalid.ca wrote in message news:cmQ1r.3572$py5.2...@newsfe09.iad... [] The graphs of the signal strengths at the edges of

Re: [ntp:questions] Frequency Offset

2012-02-25 Thread David Lord
Alby VA wrote: On Feb 24, 3:07 pm, Chris Albertson albertson.ch...@gmail.com wrote: On Thu, Feb 23, 2012 at 8:59 PM, Richard B. Gilbert rgilber...@comcast.net wrote: Thanks. I needed that NTP 101 lesson. So is it a stretch to try and obtain a quality motherboard to improve the frequency

Re: [ntp:questions] Frequency Offset

2012-02-25 Thread John Ackermann N8UR
Here's an example of retrofitting a better oscillator onto an SBC -- although this was to enable use of an external standard reference frequency, such as a GPSDO: http://www.febo.com/pages/soekris/ John On Feb 25, 2012, at 1:56 AM, David J Taylor david-tay...@blueyonder.co.uk.invalid wrote:

Re: [ntp:questions] GPS Jammers in Use by Criminals - Warping Time for Fraud Suggested

2012-02-25 Thread Jason
On 22-Feb-12 17:28, Chris Albertson wrote: Should be easy to build a hand held jammer detector with a directional antenna that the user can sweep around.Or they can put the detector at the car ferry toll both.In theory jammer detectors could be cheaper to build than GPS receivers. Could

Re: [ntp:questions] Sure gps looses all sattelite fixes

2012-02-25 Thread unruh
On 2012-02-25, David J Taylor david-tay...@blueyonder.co.uk.invalid wrote: unruh un...@invalid.ca wrote in message news:qfS1r.13334$pc2.3...@newsfe13.iad... On 2012-02-24, David J Taylor david-tay...@blueyonder.co.uk.invalid wrote: unruh un...@invalid.ca wrote in message

Re: [ntp:questions] GPS Jammers in Use by Criminals - Warping Time for Fraud Suggested

2012-02-25 Thread David Woolley
Jason wrote: So, what would be a characteristic symptom or tell-tale of jamming? Simple jamming, as used to defeat vehicle tracking, would result in the loss of all satellites. Sophisticated jamming, to produce a false time, would, for its target, produce a slow drift in the time, with no

Re: [ntp:questions] Change poll interval at runtime?

2012-02-25 Thread Richard B. Gilbert
On 2/25/2012 1:20 AM, A C wrote: On 2/24/2012 21:26, A C wrote: Is it possible to change the polling interval of one or more associated servers at runtime? It seems like I should be able to run: ntpq -c writevar associd hpoll=N or is it ppoll? Actually, I should have been more specific and

Re: [ntp:questions] Frequency Offset

2012-02-25 Thread Richard B. Gilbert
On 2/25/2012 2:31 AM, David J Taylor wrote: unruh un...@invalid.ca wrote in message news:l9S1r.3578$py5.1...@newsfe09.iad... [] The problem is that the relevant temperature is not the room temperature, but the temperature inside the box at the crystal. That temp variation is dominated by

Re: [ntp:questions] Change poll interval at runtime?

2012-02-25 Thread A C
On 2/25/2012 13:09, Richard B. Gilbert wrote: On 2/25/2012 1:20 AM, A C wrote: On 2/24/2012 21:26, A C wrote: Is it possible to change the polling interval of one or more associated servers at runtime? It seems like I should be able to run: ntpq -c writevar associd hpoll=N or is it ppoll?

Re: [ntp:questions] Change poll interval at runtime?

2012-02-25 Thread unruh
On 2012-02-25, Richard B. Gilbert rgilber...@comcast.net wrote: On 2/25/2012 1:20 AM, A C wrote: On 2/24/2012 21:26, A C wrote: Is it possible to change the polling interval of one or more associated servers at runtime? It seems like I should be able to run: ntpq -c writevar associd hpoll=N

Re: [ntp:questions] Frequency Offset

2012-02-25 Thread unruh
On 2012-02-25, Richard B. Gilbert rgilber...@comcast.net wrote: On 2/25/2012 2:31 AM, David J Taylor wrote: unruh un...@invalid.ca wrote in message news:l9S1r.3578$py5.1...@newsfe09.iad... [] The problem is that the relevant temperature is not the room temperature, but the temperature inside

Re: [ntp:questions] ntpd wedged again

2012-02-25 Thread Danny Mayer
On 2/12/2012 4:55 PM, A C wrote: I'm not exactly sure what happened but I may have caught the system in the act of trying to run away. Below is the last two lines from the peers log for one of the peers and below that is the output of ntpq showing what happened to that peer immediately after.

Re: [ntp:questions] Frequency Offset

2012-02-25 Thread Dave Hart
On Sat, Feb 25, 2012 at 21:30, Richard B. Gilbert rgilber...@comcast.net wrote: Get ready for a shock.  NTPD needs thirty minutes or more to get a reasonable facsimile of the correct time.  To get the microseconds right, NTPD needs more like ten hours!  It's not a very good fit for running 9AM

Re: [ntp:questions] ntpd wedged again

2012-02-25 Thread Dave Hart
On Sun, Feb 26, 2012 at 03:37, Danny Mayer ma...@ntp.org wrote: It could well be that rackety is sending KOD packets and this server is not recognizing them as such. rackety has a heavy load under normal circumstances so it may well do so. When it does so the ntp timestamps are going to be

Re: [ntp:questions] Change poll interval at runtime?

2012-02-25 Thread Ron Frazier (NTP)
On 2/25/2012 6:42 PM, unruh wrote: On 2012-02-25, Richard B. Gilbertrgilber...@comcast.net wrote: On 2/25/2012 1:20 AM, A C wrote: On 2/24/2012 21:26, A C wrote: Is it possible to change the polling interval of one or more associated servers at runtime? It seems like I

Re: [ntp:questions] Change poll interval at runtime?

2012-02-25 Thread Ron Frazier (NTP)
On 2/25/2012 5:05 PM, A C wrote: On 2/25/2012 13:09, Richard B. Gilbert wrote: On 2/25/2012 1:20 AM, A C wrote: On 2/24/2012 21:26, A C wrote: Is it possible to change the polling interval of one or more associated servers at runtime? It seems like I should be able to run: ntpq -c writevar

Re: [ntp:questions] Change poll interval at runtime?

2012-02-25 Thread A C
On 2/25/2012 21:55, Ron Frazier (NTP) wrote: On 2/25/2012 5:05 PM, A C wrote: On 2/25/2012 13:09, Richard B. Gilbert wrote: On 2/25/2012 1:20 AM, A C wrote: On 2/24/2012 21:26, A C wrote: Is it possible to change the polling interval of one or more associated servers at runtime? It seems

Re: [ntp:questions] Change poll interval at runtime?

2012-02-25 Thread Ron Frazier (NTP)
On 2/26/2012 1:00 AM, A C wrote: On 2/25/2012 21:55, Ron Frazier (NTP) wrote: On 2/25/2012 5:05 PM, A C wrote: On 2/25/2012 13:09, Richard B. Gilbert wrote: On 2/25/2012 1:20 AM, A C wrote: On 2/24/2012 21:26, A C wrote: Is it possible to change the polling interval of one or more

Re: [ntp:questions] Change poll interval at runtime?

2012-02-25 Thread David J Taylor
A C agcarver+...@acarver.net wrote in message news:4f49ca89.9090...@acarver.net... On 2/25/2012 21:55, Ron Frazier (NTP) wrote: [] # GPS Lines server 127.127.20.5 prefer minpoll 3 maxpoll 6 mode 72 fudge 127.127.20.5 time2 0.3100 refid GPS1 # Internet server lines # NIST New York server