50 out of 300 AP's do not show GPS info in SCG
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10-30-2015 12:22 PM
Our network has 2 AP zones with a total of 280 AP's (240 7782's and 40 7982's) . We are running SCG (3.1.1.0.641). The 50 AP's that are not showing their GPS locations are spread out between the AP zones, different sites and AP versions.
Here is what I get on AP's with no GPS info:
I have rebooted the AP and disabled/enabled GPS state. Neither command got the AP to "acquire satellite signal" and identify its coordinates.
Any other ideas?
Does anyone know have any information about how the GPS info is provided to each AP?
Thanks,
Here is what I get on AP's with no GPS info:
rkscli: get gps
GPS chip: BCM47511
GPS state: Enabled
GPS coordinates : Acquiring satellite signal
Geo location source: gps
This is what I get for AP's with GPS info:
rkscli: get gps
GPS chip: BCM47511
GPS state: Enabled
GPS coordinates : 37.800884,-122.409411
Geo location source: gps
GPS last update at: 2015-10-29-06:52
GPS next update at: 2015-10-29-19:52I have rebooted the AP and disabled/enabled GPS state. Neither command got the AP to "acquire satellite signal" and identify its coordinates.
Any other ideas?
Does anyone know have any information about how the GPS info is provided to each AP?
Thanks,
8 REPLIES 8
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11-01-2015 03:21 PM
Have you checked the cable running between the AP and the GPS?
GPS data is accomplished by trilateration and the antenna on the GPS must have CLOS to the sky to be able to determine distance to multiple satellites and use that data to determine its coodrinates.
If the AP does not have CLOS to the sky you wont get snyc and you will need to manually input the GPS coordinates on the AP.
In my opinion I dont even know why you would attached a GPS to an AP anyway, as WiFi does not need a clocking sync time for data transmission.
GPS data is accomplished by trilateration and the antenna on the GPS must have CLOS to the sky to be able to determine distance to multiple satellites and use that data to determine its coodrinates.
If the AP does not have CLOS to the sky you wont get snyc and you will need to manually input the GPS coordinates on the AP.
In my opinion I dont even know why you would attached a GPS to an AP anyway, as WiFi does not need a clocking sync time for data transmission.
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11-02-2015 05:05 AM
Hi,
Only outdoor AP have GPS, indoor not.
If the outdoor AP does not give GPS, then it usually cannot get the signal.
Regards
Martin
Only outdoor AP have GPS, indoor not.
If the outdoor AP does not give GPS, then it usually cannot get the signal.
Regards
Martin
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09-20-2016 02:40 PM
Martin, apparently not true. One of the 4 in my building does, why don't the other 3 R600 APs?
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09-21-2016 10:37 AM
Is that one of the four APs, close to a window? Are the other three further inside the building?