We ground our Heliax at 75 ft increments down the tower but have never done it with shielded CAT5.
I've seen a few notes about soldering the drain to the connector and it may work well but I recall being told by an engineer, from I think Erico, as we discussed attachment of our copper wire back to clamps for our tower not to solder them to the ground lugs because the temperature would rise during a lightning strike causing the solder to overheat effectively loosing ground potential of the tower. Thoughts? Dave Hulsebus Portative Technologies, LLC Chuck Hogg wrote: > I have attached a photo of what we do with our Cat5 cabling. Soldered > end and then heat shrink wrapped with the glue inside. I'm starting to > wonder if we should ground out every 50 ft on the Cat5 side. > > It's what we watched Nextel do to their RF cabling. One other thing I > found when looking at their cabling, they are "draining" the ground to > multiple places along the path down the tower. The cable is cut open, > grounded out, then it is cold-shrinked back together. I found the > shrink wrap used on Tessco's site, granted it is not made for Ethernet. > > Regards, > Chuck Hogg > Shelby Broadband > 502-722-9292 > ch...@shelbybb.com > http://www.shelbybb.com > > > -----Original Message----- > From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On > Behalf Of Gary Garrett > Sent: Friday, August 07, 2009 2:34 PM > To: sarn...@info-ed.com; WISPA General List > Subject: Re: [WISPA] Direct Lightning Strikes > > Seems to me it is ethernet cable picking up EMP. I seem to lose a lot of > > Netgear routers lately. Seems to go right through the POE and gets the > WAN port. Also Transmit side of XR2's. Always see receive side > degrading after mid path lightning strikes even a mile away. > Trango ethernet survives. Once we got a direct Tower strike and > everything on the tower was shot, the only survivor was the top antenna > a Trango 900 EXT. that was the only one with non-shielded cat 5. > Go figure..... > > > > > > Scottie Arnett wrote: > >> Whats the majority think the equipment damage from lightning comes >> > from...electric surge or coupling on the Ethernet > > > ------------------------------------------------------------------------ > -------- > 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/
