Hmmm...bad feedhorn... hmmm... Stirs thinking.
Good idea. I have replacements, and it's not too terribly hard to replace. -------------------------------------------------- From: <e...@wisp-router.com> Sent: Friday, November 20, 2009 7:18 PM To: "WISPA General List" <wireless@wispa.org> Subject: Re: [WISPA] Odd 5 ghz behavior > Sounds like one of the feed horns are bad or you have freznel blockage > that affects the link when drenched. > Sent via BlackBerry from T-Mobile > > -----Original Message----- > From: "MDK" <rea...@muddyfrogwater.us> > Date: Fri, 20 Nov 2009 19:08:07 > To: WISPA General List<wireless@wispa.org> > Subject: [WISPA] Odd 5 ghz behavior > > > I have a backhaul feed that completely flips out when it rains. But, > only > when it rains heavy, and only for a short time. > > Yes, we took the cables apart, and no, there wasn't water in the cable > connections. But, water gets into stuff slowly, and ... err... stays > there. > > This, will be perfectly fine and when a sudden rainstorm hit will go from > working as it should to fully dead in minutes. And, when the rain SLOWS > (not stops), it comes back up again and will restore to full RSSI faster > than I can get to it. Pacwireless grids at both ends, vertical > polarization, and no noise that I know of, other than self inflicted, if I > set stuff wrong. This is a shared backhaul... One end is 13 miles, > one > is 3 miles. The near one is off the edge of the beam a bit, mostly due > to > elevation settings, and being off the center of the beam by 5 or 6 degrees > horizontally. The AP end sees the clients go weak and vanish. Both > of > the client ends see the same thing. If it stops raining, or slows to a > spit, by 20 minutes we have good RSSI and the quality starts back up. > > The quality falls first, then RSSI when the link starts to fail. > > I'm baffled by this behavior, and have replaced the radio, pigtail, pulled > the cable ends off to inspect for water, and didn't find any. But, where > I > HAVE had water leaks, the water gets in, the link dies, and stays dead. > This changes quickly, having a few minutes lag behind a storm. For > instance, a sudden 20 minute downpour will see the link die, but by the > time > it stops raining and I can drive the 10 minutes to the site, it's up and > RSSI is fine. > > I have 2 other nearly parallel links at the same site, none of them seem > to > have this behavior. I do notice smallish losses in RSSI during hard > rains, > but nothing like going from high 60's to "can't detect" in minutes. > > > > > > -------------------------------------------------------------------------------- > WISPA Wants You! Join today! > http://signup.wispa.org/ > -------------------------------------------------------------------------------- > > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > > > -------------------------------------------------------------------------------- > WISPA Wants You! Join today! > http://signup.wispa.org/ > -------------------------------------------------------------------------------- > > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
