Re: [ntp:questions] Synchronize distributed PCs with GPS 1 PPS and NTPD for OWD measurements

2015-09-13 Thread Joachim Fabini
Sandip, relative synchronization over the wireless link is a mess. I use Linux desktop systems with GPS/PPS receivers for measuring one-way delay in mobile setups and it works. Imho any PPS-capable GPS receiver on the market should satisfy your needs when you integrate it correctly into a Linux de

Re: [ntp:questions] Synchronize distributed PCs with GPS 1 PPS and NTPD for OWD measurements

2015-09-13 Thread Charles Elliott
> > The goal is to have a setup for measuring One Way Delay of UDP packets > between two moving nodes, over a long-range wireless network. > I understand that you are trying to measure accurately the packet flight times between two computers over a long-range wireless network. You know, of cou

Re: [ntp:questions] Synchronize distributed PCs with GPS 1 PPS and NTPD for OWD measurements

2015-09-13 Thread sandip gangakhedkar
Thanks Charles S. and Charles E. for your valuable comments. Let me clarify that the two nodes *do not* have access to the internet, but only to each other, over an unreliable wireless link. So I did not consider the option of choosing NTP sync during the measurements. Of course, here I am assumi