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Old January 11th 05, 04:21 PM
Dave Hall
 
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On Mon, 10 Jan 2005 09:33:27 -0800, Frank Gilliland
wrote:


He's right, Dave. You can receive more than one skip signal from the
same transmission, and their phasing can cause intermodulation
distortion in any RF stage of your receiver.


No dice Frank. The effect you have described is commonly referred to
as "multipath".



a.k.a, "fading".


The differences in phase angles of the received
signals can cause either an addition to or a subtraction from the
fundamental signal. But it does not cause it to splatter.



No it doesn't, and that's not what I said. I said that a non-linear
stage in the receiver can turn that fading into what appears to be
splatter. If you want an example I have a couple cheap shortwave
radios that do exactly that; you pay for shipping and you can examine
them all you want.


You may very well have an example of what you've described. But that
doesn't mean that I do, or that I am incapable of distinguishing
between receiver quirks and actual on-air splatter caused by an
illegal transmitter. In many cases, I've used different radios (I have
enough of them) as well as test equipment to make my determination.

Do you really want to argue the point just because you're smarting
with me right now? You, of all people, know what an illegal operator
sounds like.

Dave
"Sandbagger"



 
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