[RFI] Utility coming tomorrow to chase RFI

[Rob Atkinson]

That's all true however those factors (antennas, feedline, matching
networks etc.) don't provide a sharp cutoff high pass filter.   If
they were involved, he'd see a gradual attenuation in the vicinity of
700 kc.   Apparently he doesn't--it's there above 700; gone below 700.
  That _is not_ a characteristic of an arc.   and anyway, line noise
is stronger in the low medium wave and low frequency range, all other
things being equal.

He can drive around with a car radio on.  If he hears the noise on say
750 kc but it is completely gone at 600 or 550, then I'd consider some
other source.  I might still be out on the street, some fault with a
street lamp ballast perhaps.
73

Rob
K5UJ