Topband: Modeling a BOG

[Mike Waters]

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 <jbwolf at comcast.net> 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:mikewate at gmail.com]
> *Sent:* Saturday, February 21, 2015 8:26 PM
> *To:* jbwolf at comcast.net
> *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 <jbwolf at comcast.net> 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.
>
>
>