Topband: Grounded Tower

[JMLTINC at aol.com]

Hello to all,

I am new to the reflector, and while I am sure this ground has been plowed a 
thousand time before, here it goes...

I have a 70' grounded tower with a Mosley Pro-67C on top. Many radials, 
either on the ground or buried are impractical. I can however, install a score or 
less on or in the ground, or I can install 1 to 4 elevated radials. I know this 
is not optimum, but it is what it is.

What would be better, the N4KG setup of elevated radials, direct feed, and 
decoupling underneath the radials, or, a shunt fed system (and elevated radials)?

Can either of these antennas be decoupled from a nearby (about 150') 
receiving K9AY loop?

Thanks in advance.

-John, N9RF