[Al Skierkiewicz]

I would not recommend tying knots in wire. You never know how hard you are pulling the knot. Most wire carries a minimum bend radius specification. If you exceed the spec, strands will break. I would suggest that #10 wire with typical 7 strand wire has a minimum bend of 1/4-3/8". Wire with more strands can withstand a smaller radius. The inductance in such a knot is so small at 15 kHz as to be ignored. At 850 MHz or higher, now we are talking some real inductance.