I mount my terminating resistors in a small Radio Shack
plastic project box which is attached to a short bamboo
pole right at the ground rod at ground level. My
antenna wires slopes down to that point. I'd mount them
at the ground. Also, I've drilled a couple small holes
in the bottom of the box to let out any accumulated
moisture. I use 12 watts worth of resistors (I only use
carbon composition types) by paralleling a bunch of 2
watters in the proper combination. Finally I wire a gas
discharge tube (about 150 volt firing spec) to protect
the whole mess. Never have had a problem. One thing
all should remember, besides lightning, these antennas
are designed to pick up low band signals and think about
the signal they pick up when you transmit!
At the transformer end, I only use a DC blocking
capacitor in series with the coax feed to the shack.
Finally my cax shield, to the shack, is no connected to
the ground connection at the transformer end.
I'm also wondering if you're using too small a toroid in
the transformer. I don't know the core I use off the
top of my head, but it is about 1.5 inches OD, I stack
two on top of each other for less dB loss (per ON4UN),
and wind them with 20 or 18 gauge wire. Maybe you're
using really tiny wires which can't handle the surges?
Hope this helps. Gd luck, Phil KB9CRY
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