Would you kindly pass along some details of the GB4FPR delta loop?
I've been using one here with a perimeter of 333 feet for several years
now for receiving purposes in the range 160 to 530 kHz. A binocular
core with a 1:2 turns ratio at one of the bottom corners provides the
step-up to the RG-6U coax to the receiver. I've no problems with
static charges or arcs (so far), but I have thought of putting some
high value resistors from the loop ends to ground.
73, J.B., VE3EAR - VE3WZL
Solar and wind powered
Lowfer " EAR" 188.830