On Jul 6, 11:11*pm, Cecil Moore wrote:
On Jul 6, 7:27*pm, Keith Dysart wrote:

Excellent attempt at diversion.

Sorry, "I don't know", is NOT a diversion.

T'is when the thing you claim not to know has nothing to do with
the problem at hand.

As i pointed out, the energy levels are well above the noise.

And you skipped the intriguing question...

If the signal was a 50 W sinusoid at 15 nHz, would you have the
same reluctance to declare it an EM wave? It is a sinusoid.
What criteria could it possibly fail to satisfy?

At what frequency would you no longer be reluctanct?
1 microHz
1 mHz
0.1 Hz
1 Hz
10 Hz
100 Hz
1 kHz
10 kHz
?

Real applications run at 10 kHz so I assume you would accept,
without concern, at least this number. Where would your
trepidation begin?

....Keith