Array Solutions (WX0B) sells static drain chokes at much lower cost than AM broadcast equipment suppliers.
http://www.arraysolutions.com/Products/staticsurgecoils.htm Or you can easily wind your own. 73 Frank W3LPL ---- Original message ---- >Date: Mon, 30 Jul 2012 11:49:09 -0400 >From: W2XJ <[email protected]> >Subject: Re: Topband: elevated counterpoise and lightning >To: [email protected] > >Static drain chokes and ground rods should be SOP. The chokes drain >static build up which usually prevents direct hits. The chokes are >available from various broadcast suppliers. > > >On 7/30/12 11:40 AM, DAVID CUTHBERT wrote: >> Bob, do you have ground rods for lightning? >> >> The stub should be ok for static discharge but not for near or direct >> strikes. >> >> Dave WX7G >> On Jul 29, 2012 7:04 PM, "Bob Kupps" <[email protected]> wrote: >> >>> Hi in this thread I mentioned using a 1/4 wave shorted stub at the feed >>> points of our 4 square for static drain. Since we want to farm the paddy >>> land we will use a non-resonant counterpoise of 48 radials connected to a >>> perimeter wire about 1.5m above the flooded ground. The only galvanic >>> connection to earth would be back through the RG6 feed line to the center >>> control box. So would adding an RF choke to the earth ground at the element >>> base be a good idea in this case? Does anyone have any experience with the >>> behavior of elevated radials in a lightning strike? >>> >>> 73 Bob HS0ZIA >>> _______________________________________________ >>> UR RST IS ... ... ..9 QSB QSB - hw? BK >>> >> _______________________________________________ >> UR RST IS ... ... ..9 QSB QSB - hw? BK >> > >_______________________________________________ >UR RST IS ... ... ..9 QSB QSB - hw? BK _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
