[Amps] 10dB and propagation

[R.Measures]

On Feb 6, 2005, at 7:16 PM, k7fm wrote:

> "I don't believe there is ANY transmitter on earth (amateur or pro) 
> that
> could influence the ionosphere by causing a non-linear behavior in 
> that."
>
Stanford Research Institute found otherwise.

> Looking at the situation in reverse, if an amateur transmitter (even
> operating at illegal power) can cause a non-linear reflection, then it 
> would
> be probable that power used would be at the beginning of the non-linear
> range.  If that was so, then higher power would be much more likely to
> trigger the non-linear reflection.

Since the effect was observed in the early morning, perhaps it has more 
to do with D-layer absorption, than F-layer reflection?

> There are enough higher power stations
> operating that the event would be reasonably common, and AT&T would 
> likely
> have discovered it when they were using high power in the 30's for 
> overseas
> telephone service.  That such events have not been regularly reported 
> by
> higher power raises a red flag.
>
> In the 50's, CQ carried an article that proclaimed that reducing power 
> would
> trigger ionospheric amplification.  It was in the April issue.   That 
> sounds
> like the same theory in reverse.  Perhaps this present discussion can 
> be
> submitted to CQ in time for the April, 2005 issue.
>
> Colin  K7FM

cheers, Colin
Richard L. Measures, AG6K, 805.386.3734.  www.somis.org