Quote:
Originally Posted by rabbit73
You don't have just one very strong channel, you have two; that's what it takes to create IMD (Intermodulation Distortion) which produces spurious signals that come up from the noise floor and reduce the SNR of your weakest to below 15 dB making them impossible to decode. You are also creating fundamental overload that produces gain compression and harmonic distortion.
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This is one of the many things that drives me CRAZY about digital. Back in analogue days, intermod/crossmod was always observable, and you knew what was going on. Now all you get is "No Signal" (which is a LIE). Without a good spectrum analyser you cannot tell what is happening.
Thanx again..
Rich