So, something like this then? https://www.tessco.com/products/displayProductInfo.do?sku=445755
On Wed, Jun 3, 2015 at 6:24 PM, Tyson Burris @ Internet Comm. Inc < t...@franklinisp.net> wrote: > Simple: buy cat 5 grounding kits for > Shielded cable. Use them at top, middle and bottom. No more no less. > Doesn't involve cutting cable just connect into shield and water proof like > hell. > > Sent from my iPhone > > On Jun 3, 2015, at 6:35 PM, Ken Hohhof <af...@kwisp.com> wrote: > > I would NOT put Cat5 surge protectors every 50-75 feet, you will likely > get Ethernet errors and/or negotiation problems. At most there should be > one at each end. > > You are probably thinking of coax, and even so I suspect those are shield > grounds, not actual surge protectors. > > I do agree with not making your antennas the highest thing on the tower if > you can help it. > > If you must use an omni antenna located at the top, I have had some > success with a COAX surge protector between the radio and the antenna. > Polyphaser makes some DC blocking types that work OK and aren’t too > expensive. If lightning hits, the omni is still probably toast, but it > might save the radio. > > *From:* Edward Brooks <broo...@mt.net> > *Sent:* Wednesday, June 03, 2015 5:24 PM > *To:* af@afmug.com > *Subject:* [AFMUG] Static & Nearby Lightning Issues > > Here goes... > We have a new 118' Super Titan Max tower that has been grounded per > manufacturers recommendations. Each leg is physically bonded (not > exothermically) to a 10' ground rod, all ground rods are then connected to > each other in a ring. The equipment cabinet is bonded to an 8' ground rod > and tied into the meter base grounding as well. The two ground rings are > then bonded to each other in 2 separate places. > With that said our issue has not been with the grounding, but with > the dissipation of static at the height of the antennas. We currently have > had the worst problems with the 3 Cyclone 2.4 antennas which are currently > located on masts at the top of the tower. We have also had issues with a > couple of the 5.7 Cyclones located below the top of the tower, but not as > frequently. The center-line of the 2.4 APs is 120' AGL, the height of the > tower is 118' AGL. We currently have WB-GigE-APC surge arrestors located > in the cabinet which is located 10 ft from the base of the tower. > After doing some research through various Cambium manuals and the > Motorola R56 manual, I have some idea what our issue is, but would like to > bounce those ideas off the community. My thought is that we neglected to > put surge arrestors at 50' to 75' intervals (as recommended by the Motorola > R56 manual) and 1 at the top for use in thunderstorm areas. Also we may > need to lower the APs to a minimum of 2ft below the top of the tower (per > the Cambium manuals for various antenna types). > Any suggestions or comments would be appreciated. What have you done > to mitigate this problem? Etc... > > Thanks, > -Ed > -- > Edward Brooks > > *Outside Plant ManagerThe Montana Internet Corporation* > 406-443-3347 X506 > > > ------------------------------ > [image: Avast logo] <https://www.avast.com/antivirus> > > This email has been checked for viruses by Avast antivirus software. > www.avast.com <https://www.avast.com/antivirus> > >
