So the answer is a better ground on the Beverage ends may not buy you much....but could it hurt you? The common mode issues I try to mitigate with 3inch toroids as I am told that is supposed to help. I could also wind some 1:1 isolation boxes.....but the coupling between Beverages going in opposite directions is probably not cut down by either toroids or 1:1 isolation boxes? Here in the tropics the qrn normally would mask any achievable improvement anyway. I am looking for a db here or there which i probably will never see. IMHO the Beverage grounds, or lack thereof probably has more to do with pattern shaping anyway. correct?
Herb Schoenbohm, KV4FZ On 11/19/2011 3:12 PM, Guy Olinger K2AV wrote: > I'd ask the question differently. If you have "before" data, and can > remeasure after you hook them together to get some "after" data, and > you are trying to advance science, go for it. But otherwise begin > from "if it ain't broke don't fix it." What is wrong, and what do > you KNOW you stand to gain by doing it? If nothing, go fix an amp, > string up another beverage to cover Bora Bora, or put your feet up and > have a beer. Personally, my gut says not to involve new miscellaneous > conduction paths with working antennas. Why give an antenna ANOTHER > common mode path into the feed to clean up? > > The great universal ground that sucks everything up, covers everything > up, absorbs everything, does not exist. You have dirt, > semi-conducting, semi-transparent at MF. A beverage is not a > well-understood antenna, because it depends on dirt, and dirt is not > well-understood. We got some voodoo in every beverage, and don't know > why the magic words work. > > If you say "thick conducting rods in the semi-conducting, > semi-transparent-at-MF dirt", it sounds and feels different than > "ground rods", does it not? > > 73, Guy. > > On Sat, Nov 19, 2011 at 12:50 PM, Herb Schoenbohm<[email protected]> wrote: >> Is there any cause for concern hooking two grounds together for separate >> Beverages? I have a a single wire Beverage that runs 600 feet to the >> East and and another that runs 600 feet to the West. The ground rods >> are 6 feet apart. I use spiders on both 4x 30' and earth is moderate to >> good conductivity as a former hay field now covered with high grasses.. >> Is there any advantage or disadvantage from connection of the two ground >> rods together with a #8 bare copper jumper? >> >> >> Herb Schoenbohm, KV4FZ >> _______________________________________________ >> UR RST IS ... ... ..9 QSB QSB - hw? BK >> _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
