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Re: QMX(+) Build experience, Poor Audio Filter Sweep/RF Filter Sweep/Image Sweep/ADC IQ test and resolution with new PCM1804


 

Karl, Audio, RF, image and Test ADC I/Q sweeps on the one hand and LPF sweep on the other hand? are using different ways. After reading QMX Terminal Hardware Sweeps you may have a clue where to debug. Maybe it's a broken PCM1804 (see QMX QMX_plus Audio PCM1804 ) or a failure in the section from Q508 up to IC407 (PCM1804).
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73 Ludwig

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