[154116] in North American Network Operators' Group
Re: strat-1 gps
daemon@ATHENA.MIT.EDU (Robert E. Seastrom)
Tue Jun 26 16:34:43 2012
To: Ryan Malayter <malayter@gmail.com>
From: "Robert E. Seastrom" <rs@seastrom.com>
Date: Tue, 26 Jun 2012 16:33:35 -0400
In-Reply-To: <CAB6yvaGbP3XfS7w8CyeaYUHGutJx1C=pKzV7GU4f_mB_iE=Syw@mail.gmail.com> (Ryan
Malayter's message of "Tue, 26 Jun 2012 15:05:10 -0500")
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Word around the campfire is that the 18x is jittery compared to the 18.
Maybe it only matters if you are super-anal.
Majdi, do you have any current info on this?
-r
Ryan Malayter <malayter@gmail.com> writes:
> +1 on the freesd-or-linux. with say a Garmin GPS-18x or whatever
> timing puck. Have an intern or junior tech tackle it as a learning
> exercise. The time geeks on comp.protocols.time.ntp seem to favor
> low-power Soekris hardware (http://soekris.com/) for stratum-1s. You
> need RS232 serial to get decent PPS; USB introduces tons of jitter.
>
> If you have to have something pre-integrated and soon, I'd look at Meinberg:
> http://www.meinberg.de/english/products/index.htm#network_sync
>
> --
> RPM
