Pull a service loop at the lowest point on the CAT5. Without cutting the conductors, slice through the jacket. Does water come out?
At 09:08 PM 11/20/2009, you wrote: >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/
