Have you put an isolated transformer on the power supply? Measured for stray AC on the ground? Sounds like an issue with the electrical supply side.
On Mon, Aug 22, 2016, 8:34 PM George Skorup <[email protected]> wrote: > I have seen the SyncPipes do exactly the same thing. Sats visible, but > none tracked. A power-cycle will usually bring them right back. They just > seem to get confused once in a while. > > I have one very problematic site. We've tried swapping pipes, cables, > everything. It just goes stupid. At times even no visible sats. Power-cycle > it and it will see 10+ visible, but still can't get lock. A couple more > power-cycles will bring it back. And then it might go nuts again an hour or > two later. Then it's perfectly happy for weeks. I don't get it. This is at > a grain leg where we're in the process of moving between legs. The new leg > is across the street about 500 feet. That one has a SyncInjector and pipe > on the ground with metal all around and it works perfectly fine. Splain me > that. In fact, I pretty much never have these issues with pipes attached to > SyncInjectors. I have a site that has been running for 444 days and the > 1PPS event counter on that injector is at... 1. > > > On 8/22/2016 5:20 PM, Nate Burke wrote: > > We've been running EPMP For a well over a year now. I have not made any > firmware changes in a while, everything is on 2.6.1, but last week I had > 2-3 sectors (not all sectors at the site) at 2 sites separated by 20+ miles > that started having sync problems to the point where I had to set them to > generate sync. Is it just isolated to me, or is something going on with > the GPS Sky thingies that is affecting EPMP? All radios are using the > included GPS Antennas, and have been installed for several months. I'll > see either all satellites disappear from the monitor->GPS page, or it will > show satellites as visible but not tracked with an SNR of 0. I have tried > both Software reboot, as well as powercycle, and they're are still acting > this way. > > I've included the graphs for 3 sectors at the same site. Blue is visible > satellites, green is Tracked Satellites. You can see the NW Sector has > visible, but is losing tracking. These were all working fine until last > week. > > > >
