Try putting them in the freezer before you attempt to use them. http://www.currentzionsville.com/2014/01/07/why-they-freeze-hockey-pucks/
From: Craig Schmaderer Sent: Wednesday, August 02, 2017 3:06 PM To: [email protected] Subject: Re: [AFMUG] EPMP1000 GPS Antenna Issues Update. Looks like I had 2 bad pucks out of the box. Replaced them with what I think is the older pucks and they have been working fine for a few days. I am sending cambium the bad pucks. -------------------------------------------------------------------------------- From: Af <[email protected]> on behalf of Josh Luthman <[email protected]> Sent: Thursday, July 27, 2017 10:00:40 AM To: [email protected] Subject: Re: [AFMUG] EPMP1000 GPS Antenna Issues Personally I'm doing the GPS pucks with epmp 1000. Works with Netonix and an AC poe... Forrest said he was shipping like right after...Wispamerica? They're on the site - http://store.packetflux.com/packetflux-rackinjector/ Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Thu, Jul 27, 2017 at 9:44 AM, Craig Schmaderer <[email protected]> wrote: So this list never fails me. Everything I have is 450 and 100 stuff in my network, but I decided to take a crack at ePMP for a small rural tower site. Right out of the box I have 2 of the ePMP 2000 working fine with the pucks, but the other two are completely hit or miss or barely work. So I opened up a ticket with cambium thinking that I was just stupid, remember I am green to the entire ui on Epmp. They want me to try to install new pucks, I was like are you serious? So after seeing this post this morning, I guess I will just get a sync pipe like I was going to do, but I thought the word on the street was the internal gps was fine….. Josh, do you have any of the rack injectors yet? Is Forest shipping them? From: Af [mailto:[email protected]] On Behalf Of Josh Luthman Sent: Wednesday, July 26, 2017 6:14 PM To: [email protected] Subject: Re: [AFMUG] EPMP1000 GPS Antenna Issues I graph/poll the SNMP sync stat. There's one AP that gives me some hassle but all of the other ones are just fine. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Wed, Jul 26, 2017 at 3:41 PM, Steve Jones <[email protected]> wrote: review your AP logs, you might be suprised On Wed, Jul 26, 2017 at 2:11 PM, Josh Baird <[email protected]> wrote: GPS pucks are perfectly reliable for us. On Wed, Jul 26, 2017 at 3:07 PM, Steve Jones <[email protected]> wrote: packetflux is the only way to sync, everything else is garbage, GPS pucks aren't reliable, CTMs and CMMs are a waste of money and are no where near as versatile, cambium cant get their pucks to work, so I wouldn't trust their little syncpipe knockoffs either. Ala-cart sync, switch agnostic, no worries. Small sites you can split one injector to power and/or sync a mix of voltages and pinouts, PLUS (this is a big thing) two Fridays ago, after hours, had an issue with getting one working, got direct communication from packetflux and got things going, good luck with that from cambium and their new tiered support On Wed, Jul 26, 2017 at 1:54 PM, George Skorup <[email protected]> wrote: It's not only the antenna. Newer 1000 boards and all 2k's have a GPS+GLONASS receiver. They also updated the 450AP a couple years ago with a revision that includes this receiver. GPS-only kinda always sucked. With GLONASS added, you have a lot more sats available, so the probability of maintaining lock is much, much better. I really wish Forrest would start using this in his pipes and boxes. Typically moving the antenna a few inches or a foot says there's some multipath going on. And sometimes the receivers just get confused and need a power-cycle. I have some SyncPipes on 1-foot stand-offs with another 300' of tower above them and rain will make them see no sats. What has worked better for me than anything else is a SyncInjector and pipe/box on the ground away from tower steel and lots of RF. Even then, those get confused sometimes too. Usually when I see really bad fading at night during the summer, I'll see that tracked sats will go from the normal 9-12 down to 5-7, but they rarely lose lock. Once upon a time, I had a SyncInjector and a pipe running in the server room for 4-5 days (because I forgot to run a cable outside for the pipe). It worked fine... until it rained. On 7/26/2017 1:31 PM, Nate Burke wrote: When we first started using EPMP, (5ghz, with GPS) we had some AP's would keep losing satellites. Then after our first couple installs, everything just Worked after that. Slap the GPS antenna on any random surface, and lots-o-satellites with no issues. Now the New AP's we're getting out of Distribution have the GLONASS label on the antennas, and we're back to having hit and miss GPS again at new sites. Are the new antennas less sensitive? At one location, 1 out of the 4 APs was going from 12 satellites tracked (20 visible) to 0 Satellites tracked (still 20 visible) at random times. We moved the GPS Puck about 4 inches vertically, and now it has a steady 17 satellites tracked. Has something changed with the Antennas?
