We fought this for months with a couple ePMP 1000 APs. We changed out
pucks, tried GLONASS vs old style pucks, changed APs, tried firmware,
etc. Nothing solved it until we shielded the cable between the puck and
the AP. Once we put that in a conduit (for as far as we could) the
problem you describe stopped. One of these was on our tower with lots
of FM, AM, UHF. We chocked that up to RF interference (our Mimosa B5
can't grab GPS either). The other AP was on a mini-pop on a residential
house with no other RF interference around that we could discover. But,
as soon as both APs had their GPS cables shielded, problem never returned.
Kristian Hoffmann <mailto:kh...@fire2wire.com>
January 26, 2018 at 1:47 PM
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:
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Josh Luthman <mailto:j...@imaginenetworksllc.com>
January 26, 2018 at 1:36 PM
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
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Kristian Hoffmann <mailto:kh...@fire2wire.com>
January 26, 2018 at 1:28 PM
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:
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