[Milsurplus] DFing receiver LO emissions (J. Forster)

[Hue Miller]

> From: "J. Forster" <jfor at quik.com>
> > Small universal electric motors make a LOT of broadband noise. Couple that
> > with hundreds of shavers....
> >
> > Not that idiotic,
> >
> > -John


John, I think the problem here is that a hundred electric shavers operating at the

same time on a ship, are not coherent energy, in terms of frequency and phase.

Think about a carbon arc light used for AA sky spotting. I don't think 15,000

flashlights pointing at the sky would provide the illumination needed.

 

Harold Goates of Gloversville, NY, may he be in peace, worked at some telegraph

office in WW2. He was occasionally engaged by FCC for specific investigations.

He told me they contacted him about a mysterious signal heard out to sea, maybe

out to 400 miles off the Atlantic coast. It was feared this was some kind of beacon

or signal.  After driving around for a few days they

came to an upstate farm from where the signal seemed to be emanating. When they

approached the resident, he seemed very nervous. But it turned out that an

electric fence charger there, was the source of the signal. ( Reminds me somehow

of "On The Beach" movie ). Harold guessed that the actual reason for the

landowner's unease was that he was poaching deer and selling the venison.

Harold attributed the range of the signal to the earth there being highly mineralized

due to iron in the ground, something like that.

-Hue Miller