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.
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
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.
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?
1100 Wayne St
Troy, OH 45373