What holdover value are you using?
Sent from my Verizon 4G LTE Smartphone
----- Reply message -----
From: "Joseph Falaschi" <[email protected]>
To: "Cambium Networks User Group" <[email protected]>
Subject: [Cambium-users] ePMP 2000 GPS not working after firmware upgrade
Date: Fri, Jan 26, 2018 2:55 PM
There was an issue with the previous version of GPS antennas, that came with
early EPMP1000's. If the GPS antennas you are using are the ones that came
with an E2K then you should have the newer model though. In any case way back
when there was an issue that the old antennas had in high noise environments.
We experienced that first hand. We haven't see the issue since replacing the
GPS antennas though. I think we still have the holdover timer set pretty high
though which might help you in a pinch until a real resolution is found.
Joe
On Fri, Jan 26, 2018 at 2:47 PM, Kristian Hoffmann <[email protected]> wrote:
I agree, but we graph the tracked/visible satellites on all APs, and
these ones would have, say 10 tracked, and then 0 for hours, then
10. It was hardly ever a gradual change. We were convinced it was
firmware, or a bad GPS receiver, or puck, etc. and went down every
road we could think of, because it seemed like it had to be one of
those. Out of the 4-5 sites we had with this behavior, every one
was permanently solved by pointing the pucks up, and I think all of
them were in close proximity to a cell tower.
-Kristian
On 01/26/2018 12:36 PM, Josh Luthman
wrote:
No satellites doesn't sound like poor signal to
me.
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373
On Jan 26, 2018 3:28 PM, "Kristian
Hoffmann" <[email protected]> wrote:
We fought with losing
GPS sync on ePMP APs at a couple of sites. We had been
told to point the pucks south to get the best GPS signal.
There were several wild goose chases, as it seemed
upgrading/downgrading firmware fixed it, but only
sometimes. In the end, the solution at each of these
sites was to point the GPS puck straight up. Our best
guess was that there was something overloading the GPS
receiver in the direction we had them pointed. So
pointing them up, while not giving them the best signal,
minimized terrestrial interference. At least that's our
theory.
-Kristian
On
01/26/2018 07:39 AM, RickG wrote:
Well, I did check the forums and found
I'm not the only one. I'm going to try downgrading.
Was hoping to find someone here who has gone through
it so I dont waste time if it needs to be RMA'd :)
On Fri, Jan 26, 2018 at
10:27 AM, Ray Savich via Cambium-users <[email protected]>
wrote:
Have
you contacted our support folks or the
Cambium Community?
[email protected]
http://community.cambiumnetworks.com/
Join
the Conversation
Cambium
Networks Community Forum
From: [email protected]
[mailto:[email protected]]
On Behalf Of RickG
Sent: Friday, January 26, 2018
9:20 AM
To: Cambium Networks User Group
<[email protected]>
Subject: [Cambium-users] ePMP
2000 GPS not working after firmware
upgrade
It worked before,
upgraded from 3.5.1, no more :(
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--
-RickG
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