Local interference, bad puck, bad AP. Only three things I can think of.
From: Bill Prince
Sent: Tuesday, May 25, 2021 10:30 AM
To: [email protected]
Subject: Re: [AFMUG] GPS Timing changes in March
Satellites travel in the neighborhood of 5 miles per second. Any reflection
that would hit one single spot would last for a small fraction of a second.
bp
<part15sbs{at}gmail{dot}com>On 5/25/2021 9:27 AM, Steve Jones wrote:
is it possible that when starlink was trucking across the sky it could have
impacted something, it was around that time we watched a few dozen of them
beelining across the shy. I was told they were going to their positions or
something like that. something like a reflection off one of them happening to
hit right where you are?
On Mon, May 24, 2021 at 4:06 PM Nate Burke <[email protected]> wrote:
The radio in question is an EPMP1000 pre GLONASS, Have not done any
on-site troubleshooting yet. i had the holdoff timer set to 1 week, so it
didn't cause me a problem until i rebooted it during the time that it didn't
have any satellites available. I saw the GPS satellites increase on all AP's
on the network EPMP1k,2k,3k, they all picked up 2-3 Sats in March.
On 5/24/2021 3:24 PM, Josh Luthman wrote:
My first guess would be a new site causing noise for your GPS. Are these
3KL? Did you add a puck/remove the puck? Assuming on boarding timing.
Josh Luthman
24/7 Help Desk: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373
On Mon, May 24, 2021 at 2:39 PM Steve Jones <[email protected]>
wrote:
did you push any firmware updates around that time, pretty much every
firmware I assume has some tweak to GPS to get it working correctly. Are these
using the internal CPS receiver, or the external puck, the pucks will always do
weird stuff, they go straight in the trash around here. To reboot a puck
requires a full power cycle, not just a software reboot. I assume theres a
capacitor involved somewhere that otherwise doesnt discharge and keeps a
component of the external puck powered
On Mon, May 24, 2021 at 11:09 AM Nate Burke <[email protected]> wrote:
I am fighting some GPS issues on an EPMP radio, and I was looking
back at my GPS Visible/tracked graphs. Something happened around the 3rd week
of March, the number of Visible/tracked satellites increased by 2-3 on almost
every EPMP radio in my network. Except for the Radio giving me trouble, on
that EPMP radio, starting in the 3rd week of March it loses GPS signal entirely
for multiple hours per day. The other 2 EPMP radios on the same site show the
2-3 satellite increase. I think this is an Old EPMP1000 radio that only has
GPS, not GLONASS. It looks like 2 new GPS Sats were launched last year, but
they were both online before the end of 2020. We're in the Chicago Market, did
Anyone else see GPS changes in March?
These 2 radios are on the same site. Visible/tracked.
Working AP
AP with GPS Trouble
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