Yes we will put 2 ground rods below each element and a spark gap but the only galvanic connection to earth for the stubs (and through them the elements themselves) will be back through the 1/4 wave feed line shields to the center control box ground unless I add a choke at each element base.
________________________________ From: DAVID CUTHBERT <[email protected]> To: Bob Kupps <[email protected]> Cc: topband <[email protected]> Sent: Monday, July 30, 2012 10:40 PM Subject: Re: Topband: elevated counterpoise and lightning 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
