The following data illustrate the EXCELLENT Frequency-Domain performance of the ASC USB 2.0 Multi-Channel PC Recorders.

ALL DISPLAYS are actual UAD-1800-16it 18-channel 250 Ks/s 16-bit MC-PCRŽ screens; the signal generator is a Tektronix SG5010 Low-distortion Programmable Signal Generator: 

(Don't try capturing/recording these waveforms on the Competition's 20Khz/40Khz bandwidth digital instrumentation recorders!)

        (PAUSED for CURSER MEASUREMENT): 60 Khz sinewave input @ -60dB FS
(Expanded display of Channel 3; 8ms Display Window/125Hz Spectral Resolution)
CH3: 250 Ks/s with ASC subtractive dither; power spectrum (Hanning Window, exponential averaging)

NOTE the excellent SFDR along with NO visible distortion products.

 





        (PAUSED for CURSER MEASUREMENT): 25Khz sinewave @ -82dB FS input

(Expanded display of Channel 3; 8ms Display Window/125Hz Spectral Resolution)

CH3: 250 Ks/s with ASC subtractive dither; power spectrum (Hanning Window, exponential averaging)

NOTE the excellent SFDR along with NO visible distortion products.

 

 





 

        (PAUSED for CURSER MEASUREMENT): 50Khz @-60dBFS  + 55 Khz @-60dBFS 2-tone input

(Expanded display of Channels 3 and 5; 8ms Display Window/125hz Spectral Resolution, Hanning window, exponential average)

CH3: 250 Ks/s without dither; CH5: 250 Ks/s power spectrum with ASC subtractive dither

NOTE the excellent SFDR along with NO visible distortion products.

 




 

        (PAUSED for CURSER MEASUREMENT): 90Khz @-80dBFS  + 95 Khz @-80dBFS 2-tone input

(Expanded display of Channels 3 and 5; 8ms Display Window/125hz Spectral Resolution, Hanning window, exponential average)

CH3: 250 Ks/s without dither; CH5: 250 Ks/s power spectrum with ASC subtractive dither

NOTE the excellent SFDR along with NO visible distortion products.

 





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