Grounding points bonded.
On Thu, Jun 13, 2013 at 10:03 AM, Jay Weekley <[email protected]>wrote: > Are all the ground points bonded together? > > David Hannum wrote: > > We're having an issue with a 9000APC that is very strange. Here is the > > situation. We have a remote water tank (stand pipe 75' high) that has > > a few homes around it. So, we have a 9000APC and a connectorized > > 2450AP on the tower, both on Omni's. The antennas are on a stand > > almost exactly 4' apart. There are six subs on the 900MHz radio. > > About a month ago, I had an issue where (after about 9 months) the > > signal to all of the customers just faded out, to the point that only > > two subs were still good. I swapped the antenna and that did not > > help. I swapped the radio, and that fixed the problem. Trouble is, it > > only lasted about three weeks, and the same thing happened again. I > > swapped the radio again yesterday, and today, I'm back in the same > > boat. The radio in the AP keeps going out. I had the climbers check > > the grounding, and we actually ran a dedicated ground yesterday off > > the water tank. My knee jerk feeling today is that maybe the radios > > are too close together, and the 2450 is burning up the 900. Could > > this be the case? Any ideas? > > Here is an example of what happens. Customers that run signals -47 to > > -57 become -70 to -75 and those who's signals were -70 and up fall > > clear off. Swap the radio, and everything goes back to normal. This > > is now three radios that have gone, each lasting a much shorter time > > than the previous. (this one did not make it 24 hours). > > I can't completely rule out lightning - the tower is in a very wooded > > area. But usually you burn up the NIC in that case - not weaken the > > radio. > > Thoughts? > > Dave Hannum > > New Era Broadband > > > > > > _______________________________________________ > > Wireless mailing list > > [email protected] > > http://lists.wispa.org/mailman/listinfo/wireless > > _______________________________________________ > Wireless mailing list > [email protected] > http://lists.wispa.org/mailman/listinfo/wireless >
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