Topband: Ground for K9AY Loop

[Peter Bertini]

I had a similar issue with my K9AY loop.  It was very non directive, even
with a short ground rod.  I added four ground
radials laid under the loops to the apex points where they met
the ground anchors.  That fixed the problem. I also added
four of those cheap TV ground rods at each corner and
tied the ends of the each radial to a rod.  Directivity is
superb now.