[Lowfer] VLF TONIGHT

[rfoxwor1 at tampabay.rr.com]

>    If you can sample faster and see 
> up to say 48 kHz, then you'll see all those mixing products on your 
> waterfall. The non-linearity isn't necessarily in your receiver. Any 
> rusty metal in the neighborhood will act like a diode to strong signals 
> and radiate mixing products. Nothing you can do about that other than to 
> live in a world of plastic, hi.


I have heard of a phenomenon called the "Luxembourg Effect" where the
crossmodulation actually took place in the ionosphere. The name came
from the then superpower Radio Luxembourg mixing with other nearby
(in frequency and place) big signals and being heard weakly at sum and
difference points. Could this be a possibility? or is this just a story
with no basis?

Bob k2euh