I'll leave the theoretical howcums of my experince to those of you who
are deep into the physics of electromagnetics. For my part another 1/4
wave HF GP just ain't gonna happen here again elevated with radials or
ground mounted with gazzilion radials. ..........................


Kinda weird. The one I used here worked great. And almost
identical specs. Mine was full size at 36 ft with 4 sloping radials.
The only thing I can think of to explain it , would be ground quality.
Evidentally, my ground quality must be pretty good compared to
many areas of the country. I know it's a good bit better than Cecils,
judging by the conductivity maps. If your's didn't work up to par,
I'd almost have to blame it on the radial system. I think you probably
needed a few more to equal what I had here. In fact, going by the
numbers, for a 1/4 wave at a 1/4 wave high, you really need 8 radials
to equal 120 on the ground. I judged my 4 radials as being equal to
about 60 radials for a ground mount. But...My conductivity rating in
this area is bordering on the "30" range being I'm not too far from the

coast. I know for sure Cecil would need more radials than mine for
the same performance, as his was half the height and his ground
rating is lower. .
My hunch is if you had 8 radials on the GP, it probably would have
done better.
My GP totally smoked the ground mount I had that used 32 radials.
No comparison at all. I've never tried 1/2 waves on the low bands,
except for extended inv-L's...I have run them 20m up though.
Work well there.
MK