Extreme bad luck - or perhaps not - are all the radios perhaps from a faulty batch? Vandalism - Is there any sort of access control or surveillance at the site? The first thoughts that spring to mind.
On Thu, Jun 13, 2013 at 4:40 PM, David Hannum <[email protected]> wrote: > Never tried that before. We always use LPU's on the CAT-5 but I've never > put one on the antenna lead. What kind of line loss does it cause? I > don't see that in the Tech Specs. Also, does it come with a male antenna > connector side? > > Dave Hannum > > > On Thu, Jun 13, 2013 at 10:35 AM, Kurt Fankhauser <[email protected]>wrote: > >> Can you possibly put a polyphaser on the 9000APC? I use these:**** >> >> >> http://www.tessco.com/products/displayProductInfo.do?sku=531462&eventPage=1 >> **** >> >> ** ** >> >> ** ** >> >> ** ** >> >> Kurt Fankhauser**** >> >> Wavelinc Communications**** >> >> P.O. Box 126**** >> >> Bucyrus, OH 44820**** >> >> http://www.wavelinc.com**** >> >> tel. 419-562-6405**** >> >> fax. 419-617-0110**** >> >> *From:* [email protected] [mailto:[email protected]] *On >> Behalf Of *David Hannum >> *Sent:* Thursday, June 13, 2013 10:11 AM >> *To:* WISPA General List >> *Subject:* Re: [WISPA] Strange problem with Canopy 9000APC**** >> >> ** ** >> >> The first radio went bad on the first antenna. The second and third >> radios have gone bad on the second antenna. We'll probably swap the >> antenna again this afternoon on this one.**** >> >> **** >> >> Dave Hannum**** >> >> New Era Broadband**** >> >> ** ** >> >> On Thu, Jun 13, 2013 at 10:05 AM, Jason Bailey <[email protected]> wrote: >> **** >> >> That's why I said antenna. It happened frequently after changing the >> antenna. >> >> --- On *Thu, 6/13/13, David Hannum <[email protected]>* wrote:**** >> >> >> From: David Hannum <[email protected]>**** >> >> >> Subject: Re: [WISPA] Strange problem with Canopy 9000APC**** >> >> To: "WISPA General List" <[email protected]>**** >> >> Date: Thursday, June 13, 2013, 10:01 AM**** >> >> ** ** >> >> Moisture is not an issue. Good drip loops on both the antenna cable and >> CAT-5 Cables. We actually sealed the entry of the radio with mastic to be >> sure. The first radio lasted about 10 months. When it went, we first >> swapped antennas, thinking maybe a lightning strike damaged it (we've had >> the same effect on signal from bad antenna). That did nothing to help, so >> we next swapped the radio. Signal back. That lasted about four weeks. >> Swapped radio again, and signal back. Lasted about 12 hours this time.** >> ** >> >> **** >> >> No visible damage to any of the radios. No moisture found inside. We >> don't have capability to test in-house. Will send to SWG or Wireless Units >> to have them take a look.**** >> >> **** >> >> Dave Hannum**** >> >> New Era Broadband**** >> >> **** >> >> ** ** >> >> On Thu, Jun 13, 2013 at 9:46 AM, Fred Goldstein >> <[email protected]<http://mc/[email protected]>> >> wrote:**** >> >> On 6/13/2013 7:43 AM, 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?**** >> >> Interesting mystery! Clearly you don't want to blow more radios this way. >> >> Any more clues about what may have happened right before the failures? >> I'm wondering about weather events. Did it fail after a rain storm? >> Water coming in to the radio or corroding the antenna connectors might >> result. And if the antenna's connector is flaky, re-attaching it to a >> new radio might be a temporary fix, but reattaching it to an old radio >> might "fix" it too (temporariy). Have you examined the broken radios in >> the shop? >> >> -- >> Fred R. Goldstein fred "at" interisle.net >> Interisle Consulting Group >> +1 617 795 2701**** >> >> _______________________________________________ >> Wireless mailing list >> [email protected] <http://mc/[email protected]> >> http://lists.wispa.org/mailman/listinfo/wireless**** >> >> ** ** >> >> ** ** >> >> -----Inline Attachment Follows-----**** >> >> ** ** >> >> _______________________________________________ >> Wireless mailing list >> [email protected] <http://mc/[email protected]> >> http://lists.wispa.org/mailman/listinfo/wireless**** >> >> >> _______________________________________________ >> Wireless mailing list >> [email protected] >> http://lists.wispa.org/mailman/listinfo/wireless**** >> >> ** ** >> >> _______________________________________________ >> Wireless mailing list >> [email protected] >> http://lists.wispa.org/mailman/listinfo/wireless >> >> > > _______________________________________________ > Wireless mailing list > [email protected] > http://lists.wispa.org/mailman/listinfo/wireless > >
_______________________________________________ Wireless mailing list [email protected] http://lists.wispa.org/mailman/listinfo/wireless
