Swapped antennas first, thinking that might have been the issue. Did not help. I've heard off list from a couple of others who are experiencing the same exact issue. And like us, it's limited to a given tower or towers. We have 9000APC all over the place. This is the only spot for this problem. I'm wondering about static on this fiberglass shell tower . . . But we ran a dedicated ground to both the antenna mount and the LPU on the CAT-5. And overnight it went out.
Dave Hannum New Era Broadband On Thu, Jun 13, 2013 at 9:06 AM, Jason Bailey <j284...@yahoo.com> wrote: > Antenna has a dead short. Just a guess. > > --- On *Thu, 6/13/13, David Hannum <d.han...@newerabroadband.com>* wrote: > > > From: David Hannum <d.han...@newerabroadband.com> > > Subject: [WISPA] Strange problem with Canopy 9000APC > To: "WISPA General List" <wireless@wispa.org> > Date: Thursday, June 13, 2013, 7:43 AM > > > 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 > > -----Inline Attachment Follows----- > > > _______________________________________________ > Wireless mailing list > Wireless@wispa.org <http://mc/compose?to=Wireless@wispa.org> > http://lists.wispa.org/mailman/listinfo/wireless > > > _______________________________________________ > Wireless mailing list > Wireless@wispa.org > http://lists.wispa.org/mailman/listinfo/wireless > >
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