While I have yet to measure it with an accurate tool, I have yet to see a 10dB
increase in power give only a 10dB increase at the receiver. It seems that
whatever the increase is, the received signal level is always hotter. I've
always dismissed it for crappy S-meter linearity, but who knows...
Joe, N3JI
David Kirkby <david.kirkby@onetel.net> wrote:
John T. M. Lyles wrote:
> There is an Interesting paper in Nature (#433,
> page 498-500, 3 Feb, 2005) in which high power HF
> radio transmissions from HAARP were used to cause
> visible changes in the aurora, where speckles
> appeared. They were using the full 960 kW beam,
> from 4 -6 MHz, with 7.5 seconds on and then 7.5
> second off time. Operating QRO. Look it up, its
> pretty neat. I have a text version I can forward
> upon request.
> 73
> John
> K5PRO
An intereting paper. I downloaded the PDF from the Nature site, where of
course you can see the graphs and pictures.
It does give some credability to the people like Rich who has said he
has observed non-linear change in received signal as the transmitter
power is adjusted. I'm still highly suspicous of Rich's claims, but are
a little less inclined to totally dismiss them now.
Clearly if the could visually affect the aurora, it is possible it
would have had some change on its radio properties.
--
Dr. David Kirkby,
G8WRB
Please check out http://www.g8wrb.org/
of if you live in Essex http://www.southminster-branch-line.org.uk/
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