FWIW it's on the south side of a water tower.  There's little to no signal
from the northern sky.

Of course I'm pretty sure the tower isn't moving some weird way every
night...

Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373

On Fri, Apr 6, 2018, 6:00 PM Bill Prince <part15...@gmail.com> wrote:

> Just checking ours. I thought it happened once every month or two, but I
> guess it's not even that often. The snapshot from the last 3 months
> indicate that it got close to losing it in week 12, but it seems to have
> lived through it, even though it got down to 3 satellites tracked.
>
> bp
> <part15sbs{at}gmail{dot}com>
>
>
> On 4/6/2018 2:48 PM, Brian Sullivan wrote:
>
> We have this at a couple sites each year.  Usually, I can mount the GPS
> antenna in a different place and solve the issue.  Whats interesting is, I
> don't see this issue with the SyncBoxes, only CMM Micro.  And I have both
> at the same towers affected.
>
> On 4/6/2018 4:39 PM, Bill Prince wrote:
>
> We have a SyncInjector mounted on the south side of a concrete building.
> The building is thick concrete ( > 12"),  and extends up above the location
> of the GPS antenna 30 or 40 feet. The building is also a shallow "V" shape
> with the GPS antenna at inside base of the V. So the GPS antenna gets about
> 170° view of the sky to the south.
>
> It goes through a periodic cycle of visibility, but it's not the same time
> every night, or even every day.
>
>
> bp
> <part15sbs{at}gmail{dot}com>
>
>
> On 4/6/2018 2:20 PM, Forrest Christian (List Account) wrote:
>
> But the question is, why at the same time every day?   Especially since
> the gps satellites don't orbit on a 24 hour period...   that's what has me
> troubled with my customer.
>
> On Fri, Apr 6, 2018, 2:11 PM Bill Prince <part15...@gmail.com> wrote:
>
>> Exposure to the north or south should not make a significant difference.
>> GPS satellites, excepting the WAAS satellites, are not in geostationary
>> orbits. They are (mostly?) in medium earth orbit of around 12,000 miles.
>>
>> I think it may be more of how much of the sky they can see.
>>
>> bp
>> <part15sbs{at}gmail{dot}com>
>>
>>
>> On 4/6/2018 1:45 PM, Dave wrote:
>>
>> how much exposure to the northern hemisphere does it have?
>> If I remember those antennas are fairly small
>>
>>
>> On 04/06/2018 10:15 AM, Josh Luthman wrote:
>>
>> I have an epmp that has GPS problems and goes into the hold timer for a
>> few minutes every single night for the last many months (maybe even a
>> year).
>>
>> Didn't think much of it until I noticed all of the times being right
>> around midnight, give or take...
>>
>> WTF?  Any ideas what's causing it?
>>
>> Josh Luthman
>> Office: 937-552-2340
>> Direct: 937-552-2343
>> 1100 Wayne St
>> Suite 1337
>> Troy, OH 45373
>>
>>
>> --
>>
>>
>>
>
>
>

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