[Elecraft] Can a R5 vertical be ground mounted??

[Bob Nielsen]

On Nov 14, 2007, at 7:56 AM, Norm Klieman wrote:

> Hi - Does any one know if a Cushcraft R5 vertical can
> be grounded mounted and how high off the ground would
> it need to be. I've only used mine in the past mounted
> on the roof but at the current QTH I won't be able to
> get it up there until the spring. 73's Norm K9NK

I haven't run any analysis, but think that the counterpoise rods  
should be isolated above the ground a bit.  K7LXC and N0AX did  
comparison testing of several verticals and presented the results at  
the Dayton Hamvention in 2000 (copies of the report are available  
from <http://www.championradio.com/publications.html>.

One of the models they tested was the R8, which is built in a similar  
manner to the R5.  I recall they had the base mounted about 7 feet  
above a ground screen.  The results were (in my opinion) better  
overall than for the other types they tested.  I have a similar Hy- 
Gain AV640 mounted on a pipe at 13 feet and am quite satisfied with  
the performance of that installation.

73, Bob N7XY