Been messing with the coil in my yard (near power lines). Not really sure much about anything. I hooked up a frequency counter to it and had to get near to the transmitter before it was pulled off the 60Hz reading to the tuned frequency 59.5K in this case. So I realize the transmitter antenna is not supposed to work like a typical radio antenna (tuned).
When measuring microamps the meter reading will smoothly increase as I approach the power lines, but when there is a signal line it is like there is a slight delay --the meter will flatten then jump to catch up to where it was headed. It almost feels like the signal line is pulled along a couple feet or so as I walk through it. So I wonder if the coil is picking up some capacitance or whatever from me (sort of like grabbing a TV antenna and changing the tuning). There's no doubt the power lines are the dominant force, but if there is an underlying frequency from the transmitter in the coil I don't know how to measure it. I need to get out away from the 60Hz and see what happens. Got more things to try out.
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