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Sample-accurate delay in SFN MUX has the potential to work some miracles!
Initial testing was performed today, muffled sound just changed to clear baseband by adding appropriate delay of 34 samples, exactly as initially calculated, with some audible chirping due to idle carrier frequency mismatch by almost 700 Hz. GPS-locking the PLL Exciter's frequency using 10 MHZ GPS reference sources could do the trick. Heck, even aligning crystals properly could enchance the results. I'm on to it! This summer is rather hot - I am sitting in a seaside cafe right now, (temp is 36 deg c). in the center of the affected overlap area and adjusting modulation levels (FM capturing helps!) down to 0,1 dB, when I gain access to the actual transmitters this margin could decrease twofold.
I went to radio station's owner with a mood like "Daddy, Daddy, I want this software, can I have it pleeeeeease???? (he's no dad of mine but we are quite playful when happy!)
Cool, I'll move it from Extreme Tweaker back to Expert mode!