"Bruce Atchison - author" wrote in message
.. .

[snip]

It would be interesting to learn more
about the science behind this research.

Check out your local library. Look for radio related electronics textbooks,
the Radio Engineer's Handbook, the Radiotron Designer's Handbook and
similiar books. The ARRL handbooks cover this concept well without a huge
amount of math.


It would be interesting to have a
shortwave radio at the lab and hear what happens.


Many SW radios -- especially portables -- will overload on strong signals.
An SW radio overloaded by a nearby battery charge broadcaster would be
blocked out. The effect would be the same as with some car radios which
overload near broadcast towers.

Frank Dresser