Great work, Don. It suggests that there are multiple sources, one much
stronger than the other, or multiple points at which radiation takes
place (or the magnetic field is developed). Be prepared for noise from
one or more weaker sources to still be present after the first one is
suppressed.
73, Jim K9YC
On 2/4/2018 8:30 AM, Don Kirk wrote:
I have to turn the SDR receiver gain all the way down to zero on
the SDR receiver when I again get in close, but the signal is still very
large when in close (lets say within 3 inches of the conduits), so I'm now
going to build a a 1" diameter loop as I suspect it will be helpful when I
again gain access to the inside of the building where the variable speed
drives are located.
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