[BC] Elevated radials

[Craig Healy]

These do have significant voltage at the far end, and probably fairly narrow 
frequency as a true ground.  I'd suggested in the past that six elevated 
grounds were used.  Then, connect 3 pairs at the ends to create 3 triangular 
grounds.  I would think that would widen the frequency and probably make it 
somewhat less voltage at the ends.

I did hear of this before on the Radio Disney 640 station in Philadelphia. 
The end voltage was significant.  I think it was high enough that the field 
could be mowed underneath these ground wires.

One of these days I may build a scale model on the 40m ham band.  Put up a 
1/4 wave vertical and six elevated grounds tuned to mid-band.  Do a VSWR 
reading across a part of the band.  Then, connect the far ends as I 
described above.  It may also work that the length of the grounds may be 
shorter that way.  If I have some time, I may do that...

And I suppose another way to widen the frequency would be to make each 
ground slightly different in length.

Craig Healy
Providence, RI