We typically hook the drain wire up to screw terminals on a buss bar, like you'd use for the neutrals/grounds in a breaker panel. They are only a few dollars at the hardware store.
This buss bar is usually bolted to the grounded rack or copper grounding plate that the coax lightning arrestors use. On Tue, Aug 04, 2009 at 11:25:53AM -0500, Eric Muehleisen wrote: > Scott, > So do you solder or ground the shielded end at any point or just ground > the drain wire only? > > -Eric > > Scott Reed wrote: > > From way back when I was an electrical engineering student, ground one > > end. Or ground every 10 to 20 feet along the run. Otherwise you have > > the potential for a ground loop, which means you have current running > > through the shield and then through the tower. That can induce it's own > > noise into the cable. > > > > Here is the key: Single Point Ground. > > The idea is to do your best to keep everything at the same voltage > > potential. So everything comes back to one place. > > > > So, while Jayson is right to a point about creating an antenna, the > > solution is different than he suggests. You want to have the drain wire > > do what it's name says, drain the stray signals to ground. For some > > installations, using the metal connector on one end works. That is, > > assuming that the board ground in directly connected to the single point > > ground. My personal preference is to directly connect the drain wire to > > the ground point, but the key is that you have one ground point and no > > current flowing through the ground wires. > > > > Jayson Baker wrote: > > > >> If you don't ground both ends you're creating a huge "antenna" to pick up > >> static and drain it right into your board/POE. > >> Always use shielded connectors on both ends, and ground both ends. > >> > >> On Tue, Aug 4, 2009 at 7:26 AM, Scott Carullo > >> <sc...@brevardwireless.com>wrote: > >> > >> > >> > >>> While we are on the STP topic... It's been noted several times that you > >>> are only supposed to ground ONE end of the STP shield otherwise you are > >>> creating for yourself a ground potential difference. The idea behind the > >>> shield is just that - shield noise away shunted to ground. On a typical > >>> install lets cal this the radio side use plastic connector and inside use > >>> grounded one with tall the other lightning goodies. What is the consensus > >>> on this while we are on topic :) > >>> > >>> Scott Carullo > >>> Brevard Wireless > >>> 321-205-1100 x102 > >>> > >>> -------- Original Message -------- > >>> > > > > -------------------------------------------------------------------------------- > 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/ -- /* Jason Philbrook | Midcoast Internet Solutions - Wireless and DSL KB1IOJ | Broadband Internet Access, Dialup, and Hosting http://f64.nu/ | for Midcoast Maine http://www.midcoast.com/ */ -------------------------------------------------------------------------------- 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/
