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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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