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
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