A one or two inch form and #12 wire.
On 7/30/12 12:23 PM, Jim Hoge wrote: > Then what would you recommend for homebrewing a choke? > > Tnx, > Jim W5QM > > ------------------------------------------------------------------------ > *From:* W2XJ <w...@nyc.rr.com> > *To:* topband@contesting.com > *Sent:* Monday, July 30, 2012 11:12 AM > *Subject:* Re: Topband: elevated counterpoise and lightning > > True but they are pretty wimpy. > > > On 7/30/12 12:10 PM, donov...@starpower.net > <mailto:donov...@starpower.net> wrote: > > 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 <w...@nyc.rr.com <mailto:w...@nyc.rr.com>> > >> Subject: Re: Topband: elevated counterpoise and lightning > >> To: topband@contesting.com <mailto:topband@contesting.com> > >> > >> 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" <n...@yahoo.com > <mailto:n...@yahoo.com>> 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 > > > > _______________________________________________ > UR RST IS ... ... ..9 QSB QSB - hw? BK > > _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK