On Tue, Jun 26, 2012 at 01:54:37PM -0400, Steve Meuse wrote:

FreeBSD, Trimble Thunderbolt and a TAPR FatPPS?

Thing with the Thunderbolts is not all revisions of the firmware seem to play nice with ntpd. And yes, the PPS is quite narrow and would have to be conditioned as well. I think I'd start somewhere else unless you also needed the frequency reference. Good news is, the 2100-GPS used a 5-12VDC antenna with no downconversion, so it should work with just about anything. Randy, what's your budget for this? ($$$$ and space) Does it have to be 1U, or is a 1U GPS receiver and 1U time server acceptable? --msa

http://endruntechnologies.com/time-server.htm

at over $4k, not sensible randy

I would definitely second this - I have one of these from ages ago and it runs great, and the CDMA sourced data means just throwing an antenna at the top of the cabinet in the datacenter vs running antenna cabling onto the roof for a GPS antenna. I believe I got mine on the secondary market for a fraction of the cost you mentioned Randy. I did have an issue in 2004 with a Verizon base station having a leap second setting off or something like that, but after reporting it to EndRun they contacted Verizon and had them update it and I don't think I've touched it since. Nikos On Tue, 26 Jun 2012, John Kristoff wrote:

On Tue, 26 Jun 2012 07:30:30 -1000 Randy Bush <randy@psg.com> wrote:

...

my old TymServe 2100-GPS seems to have died. would appreciate reccos for a replacement. it is in a stand-alone environment so i can avoid roof access issues. antenna already in place. thanks.

I've only used their CDMA-based time server, which is handy here in the States when line-of-sight access is difficult, but EndRun Technologies makes something you might want to consider:

<http://www.endruntechnologies.com/time-servers.htm>

Just be aware that you may want to harden the system a bit based on what I saw from the last shipping defaults. A template for the CDMA version is here, but I suspect the GPS version would be hardened in a similar fashion:

<http://www.team-cymru.org/ReadingRoom/Templates/secure-endrun-template.html>

John

i've been using a earlier version of this: http://www.spectracomcorp.com/ProductsServices/TimingSynchronization/Network... On Tue, Jun 26, 2012 at 09:35:29PM -1000, Randy Bush wrote:

my experience with cdma was kinda funky

and there already is a fancy gps antenna

randy