Can you upload your patterns as GIF or PNG files somewhere, so that we all can see them?
73, Mike www.w0btu.com On Sat, Feb 21, 2015 at 7:50 PM, James Wolf <[email protected]> wrote: > Mike, > > > > The reason the beverage wire in the model is 2 ft. below the surface is to > have it away from the ground somewhat and have a nice segment length from > the wire to ground on each end. The model shows only about 2 dB difference > in gain and no pattern difference between the wire 1” below ground and > 2ft., which I suspect could be correct for 160 meter frequencies. Of > course, the pattern is the problem. > > > > In practice, I would lay it on the ground and after a few years, it would > be just below the surface. > > > > Hmmm. BBG – Beverage Below Ground. > > > > Jim – KR9U > > > > *From:* Mike Waters [mailto:[email protected]] > *Sent:* Saturday, February 21, 2015 8:26 PM > *To:* [email protected] > *Cc:* topband > *Subject:* Re: Topband: Modeling a BOG > > > > I have never heard of anyone burying a BOG. The radials could be buried an > inch or so, but a BOG should lay on the ground or slightly above. 2 ft. is > two feet too deep. > > About 200' is a common length for a BOG on 160. > > 73, Mike > > www.w0btu.com > > > > On Sat, Feb 21, 2015 at 6:51 PM, James Wolf <[email protected]> wrote: > > I am trying to model a BOG (Beverage On or in the Ground). ... As soon as > I drop the antenna below ground level, approx. 2 ft. without errors, I > lose all indication of directivity except for a few dB. I have tried > different lengths from 200 ft. to 800 ft. > > > _________________ Topband Reflector Archives - http://www.contesting.com/_topband
