"Joe" wrote in message
...
Here what it sound like (the best way I can describe it)
I remember my grandfathers old 54 Pontiac Chief engine with the wipers
running, don't laugh to hard:
RRRRRRRRgweeRRRRRRRRRRgweeRRRRRRRRRgweeRRRRRRRRgwe (the patterns do
shuffle
a bit but in the same time constant)

Its repetitive, has equal signal in each side of 770 kHz, (and only on
770
wee hours) if its another station off frequency 400hz offset tuning or
even
listening in SSB mods cant knock it out.
sounds like some kind of pilot signal
Im in the Long Island across from City Island

-Joe (nospam)



Could it be a harmonic? Have you checked at 1/2, 1/3 of 770 etc.?

Frank Dresser