Jerry:

[snip]
I will respectfully submit that a car alternator doesnt so much spin a
magmetic field as it Rotates the field past a conductor. A car
alternator is a lumpy magnetic field that is spun past stationary coils of
wire. There is no misunderstanding about inductive coupling of close by
conductors. My question related to far field "radiation". I am aware
that my understanding of far Field radiation is very limited, so i dont
propose that i have answers. I do have question about generating a far
field by spinning a DC excited dipole.

Jerry KD6JDJ
[snip]

There are many practical examples extant of such "rotating" fields...

Consider the rotating field generated within the stator of a "shaded pole"
electric motor, or perhaps
the roing field of a synchronous electric motor.

However the rotating electromagntic fields of AC electric motors have
conventionally been
synchronized with the frequency (60Hz in North America) of the exciting
waveform. That
commercial application does not preclude applications wherein the rotating
field of an AC
motor is not synchronous with the exciting prime mover. For example,
imagine a motor
wherein the stator magnets are rotated by a separate mechanical device,
bicycle pedals?,
that pulls the rotor around at a frequency not synchronized with the stator
prime mover
excitation. Just because there is no real commerciall application for such
a motor in
today's markets, does not mean that such is not useful for some other
purpose.

Open minds create new applications

-- Pete K1PO