Re: [ntp:questions] Have Pi, have GPS = low powered NTP server?

2012-05-30 Thread Terje Mathisen
David J Taylor wrote: A small box like that would make a nice NTP server if it can be done. The only (very small) contribution I can make is that for some time I ran NTP with GPS on a Pentium 133 MHz with 48 MB of memory using FreeBSD, so you CPU-grunt is at least adequate. Rebuilding the kernel

Re: [ntp:questions] Have Pi, have GPS = low powered NTP server?

2012-05-30 Thread Ron Frazier (NTP)
Hi Dave, I cannot speak to using the PI specifically. I have been experimenting with GPS + NTP quite a bit and now have a cross platform, Windows and Linux, stratum 1 (non public) time server running on my LAN. Depending on your requirements, you may not need PPS through the UART. I have succes

Re: [ntp:questions] Have Pi, have GPS = low powered NTP server?

2012-05-30 Thread Ron Frazier (NTP)
Hi Dave, I can't speak to using the PI specifically. However, I have been experimenting with NTP + GPS a good bit, and now have a cross platform, Windows and Linux, (non public) stratum 1 server running on my LAN. Depending on your requirements, you may not need PPS through the UART. I have suc

Re: [ntp:questions] Have Pi, have GPS = low powered NTP server?

2012-05-30 Thread Hans Jørgen Jakobsen
On Wed, 30 May 2012 14:15:27 +0100, David J Taylor wrote: > > [Although the two jitters of 180 milliseconds in your ntpq -p billboard is > not encouraging!] > > According to http://www.raspberrypi.org/faqs "The Ethernet is driven via USB 2.0, so the upstream bandwidth would not support Gigabit." T

[ntp:questions] Ofcom Update: UK GPS Jamming Notice

2012-05-30 Thread David J Taylor
I have received the following notice: __ NOTIFICATION OF GPS JAMMING EXERCISES RAF SPADEADAM, CUMBRIA, SEPTEMBER 2012 Dates: Between the 10th of Sept to the 14th of Sept 2012 inclusive. Times: 0700 -2000 GMT. Location of MULTIPLE jammers: Land based

Re: [ntp:questions] Have Pi, have GPS = low powered NTP server?

2012-05-30 Thread David J Taylor
Hi. From the title, you might (maybe) guess this is about the Raspberry Pi, and NTP. I've only had the thing a few days, but been experimenting (playing) with the default NTP behaviour as seen with ntpq -p on the command line. [] It's said, that the RasPi, has about the same cpu "grunt" as a 3

[ntp:questions] Have Pi, have GPS = low powered NTP server?

2012-05-30 Thread Dave Baxter
Hi. >From the title, you might (maybe) guess this is about the Raspberry Pi, and NTP. I've only had the thing a few days, but been experimenting (playing) with the default NTP behaviour as seen with ntpq -p on the command line. The Fedora remix distro' is a bit of a disaster, unless I've scre