Unruh wrote: > Noob wrote: > >> Unruh wrote: >> >>> SNTP is a client protocol, not a server, according to RFC. >> >> You keep saying that. Which RFC are you referring to?
Apparently, you forgot to answer this question ;-) >> The only client is an x86 PC running Linux 2.6.22.1-rt9 (i.e. with >> real-time extensions) and ntpd [EMAIL PROTECTED] > >> The server is an embedded device (HEOL-T101) with a GPS receiver and a >> Fast Ethernet port. I have no idea what operating system runs on the >> device; there might not even be an OS. The manufacturer claims the >> device implements SNTPv4 instead of the full NTP. > > Just looked it up. A bit bizarre -- power over the ethernet? The ethernet > has no power supply capability. Engineers do all sorts of crazy things. http://en.wikipedia.org/wiki/Power_over_Ethernet Anyway, I didn't plan on using that feature. > The GPS timing claimed is 40ns, but the timestamp is only 10usec. How much > does this thing cost? Over 1000 euros (!!) AFAIU. > Are you really in a situation where this is a better > solution than say a cheap Garmin 18LVC? I've already told my boss several times about the GPS18LVC. I'm not sure why he ignores my request to test a unit. Reference to self: https://buy.garmin.com/shop/shop.do?pID=223&pvID=796 The HEOL-T101 comes with a very stable XO (OCXO perhaps?) accurate within +/- 30 ppb. How much does such an XO cost? Does the GPS18LVC provide an oscillator to serve time even when there are not enough satellites in sight? >> Considering the answers I've been given by you and by others in this >> thread, I believe there is a good chance that the setup outlined above >> will work. > > You have not told us what the requirements are, so what "will work" is > is unclear. Yes, I am sure it will discipline your computer's clock. > probably to better than ms accuracy. My goal was clearly stated in my original message: Will the new setup provide better accuracy than the current setup. _______________________________________________ questions mailing list [email protected] https://lists.ntp.org/mailman/listinfo/questions
