Hi Synergy has always done good by me. Their modules work very well. They have done a great job of keeping the "Motorola standard" alive. The FreeBSD driver works *very* well with their modules.
All of that said the timing products are a bit of overkill for most NTP applications. A "not so hot" GPS these days will do a microsecond. A timing receiver gets you into the tens of nanoseconds. Of course a "broken" GPS will do terribly .... NTP is doing well at a few tens of microseconds. Most people look to it as a "millisecond(s)" timing source. Most system designers will go for a reference that's 5x or 10x better than the system requirement. Something that does a microsecond should be just fine .... Bob Camp On Jun 23, 2007, at 10:02 PM, Jason Rabel wrote: > You could probably start with a low cost Garmin OEM GPS, but if > that doesn't > perform as well as you need you will probably need to step it up to > a timing > receiver and separate active antenna (that you can mount on your > roof). > > Check out Synergy Systems: http://www.synergy-gps.com/ > > >> After reading thru this thread and looking at the write-up that was >> posted at febo it looks like a $100 USD is needed to get my 4501 set- >> up properly. My question is does anyone have any links for low cost >> GPS sources to be used for the signal input. > > _______________________________________________ > Soekris-tech mailing list > Soekris-tech@lists.soekris.com > http://lists.soekris.com/mailman/listinfo/soekris-tech > _______________________________________________ Soekris-tech mailing list Soekris-tech@lists.soekris.com http://lists.soekris.com/mailman/listinfo/soekris-tech
