[Lowfer] Beverage ground question

[k2ors at comcast.net]

J.B.,
 
>  I ran a wire from the ground
>rods over to a coniferous tree about 10 feet from the feedpoint
>and connected it to the trunk just above ground level with a 2
>inch stainless steel screw.  Tests with my MFJ antenna analyser
>showed a pretty flat SWR across the lowest range that it tunes.
>This was much better than previous measurements had been,
>so I headed into the shack to see if it "hears".
   Flat SWR is a good sign for a proper ground of a Beverage.
W8JI has a good web page on Beverages:
http://www.w8ji.com/beverages.htm
"If you are unsure if you Beverage's ground is adequate,
 measure the impedance of the beverage with an antenna analyzer 
with your operating ground systems. Note the reading. 
Add two temporary radials 1/4 wl long suspended above earth 
at right angles to the Beverage, and re-measure the impedance.
You can measure the impedance on the low-Z side of a good transformer. 
Under almost any condition, the wires would have 100 ohms or less impedance. 
If you see a very noticeable change in impedance, you probably should 
consider improving the ground system. Impedance changes of 15% (or larger) 
indicate a potential ground stability problem, because the ground resistance
 would be nearly 100 ohms. This test should be done when the ground is dry, 
or any time you think you might be having a ground problem."

--
73 Warren K2ORS
WD2XGJ     136-140kHz
WD2XSH/23 505-510kHz
WE2XEB/2   160-189kHz
WE2XGR/1 505-515kHz

FN42hi
http://www.w4dex.com/wd2xgj.htm