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Q403 grounding point
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9
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230
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December 11, 2025
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Looking to learn about ErinH's test setup
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3
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143
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December 10, 2025
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QA403 I2S Input / Output
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24
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1256
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December 9, 2025
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Problems when sampling over 48k... Check your USB hub
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6
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131
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December 3, 2025
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Help with 60hz noise
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14
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281
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December 2, 2025
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RIAA Measurements
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7
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180
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November 25, 2025
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Early rolloff before 20kHz
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5
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62
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November 20, 2025
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How to get the “Automated Tests”
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6
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108
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November 19, 2025
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Output unstable?
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9
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153
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November 19, 2025
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Advice re measuring DAC linearity/frequency response. Getting a lot of strange wobble <=100Hz
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7
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132
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November 18, 2025
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Is this the correct approach for PS measurements?
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7
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185
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November 17, 2025
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QA472 picking up mains noise
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6
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164
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November 15, 2025
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What to measure that relates to audible differences
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20
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347
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November 9, 2025
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Measuring THD on an FM Tuner
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4
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112
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November 6, 2025
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Error with HEADLESS
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3
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68
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November 5, 2025
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I2C on the expansion port
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0
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47
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November 2, 2025
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Rack mounting tray
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3
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97
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October 31, 2025
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A serious error has occured. The information has been logged. The application will Close
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1
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69
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October 31, 2025
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Improved Damping Factor measurement
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7
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194
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October 31, 2025
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Laptop minimum requirements for QA403
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10
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568
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October 28, 2025
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Can I test a USB ADC with the QA403?
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3
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147
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October 25, 2025
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Measuring Compressor Response
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5
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913
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October 24, 2025
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I2S & TDM continuity tests
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3
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110
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October 24, 2025
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Coherent sampling DAC to ADC
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3
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75
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October 24, 2025
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Measuring classical tape decks
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10
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186
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October 23, 2025
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QA40x Feature request
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58
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2151
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October 22, 2025
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QA401 save a snapshot?
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0
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34
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October 21, 2025
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Between Gen1 and Gen2 phase shifted signals setting
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6
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81
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October 21, 2025
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Can I do IM testing with mirror mode
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4
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86
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October 21, 2025
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Has the QA403 output out-of-band residual signals?
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43
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818
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October 20, 2025
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