Residual Noise
22 Hz-22 kHz BW
≤1.5 µV [-114 dBu]
A-weighted
≤1.0 µV [-118 dBu]
CCIR-QPk
≤5.0 µV [-104 dBu]
Bandpass Amplitude Function
Tuning Range (f
o
) 20 Hz to 120 kHz
Tuning Accuracy
±2%
Bandpass Response
Q = 5 (2-pole)
Accuracy (at f
o
)
±0.3 dB, 20 Hz - 120 kHz
Residual Noise
10 Hz-5 kHz
≤0.25 µV [-130 dBu]
5 kHz-20 kHz
≤0.5 µV [-124 dBu]
20 kHz-200 kHz
≤1.5 µV [-114 dBu]
THD+N / SINAD Function
Fundamental Range 10 Hz to 100 kHz, THD+N mode
400 Hz or 1 kHz, SINAD mode
Measurement Range
<0.001% – 100%
Accuracy
±1 dB, 20 Hz – 120 kHz harmonics
Measurement Bandwidth
LF -3 dB <10, 22 or 400 Hz
HF -3 dB 22K, 30k, 80k, or >300 kHz;
option filters are also functional
Residual THD+N
6
25 Hz-20 kHz
≤(0.0025% + 3.0 µV), 80 kHz BW [-92 dB]
10 Hz-50 kHz
≤(0.010% + 10 µV), >300 kHz BW [-80 dB]
Minimum Input
25 mV for specified accuracy in AUTO TUNE
mode, 800 µV [-60 dBu] in other modes.
Nulling Time
Typically 2-3 seconds above 25 Hz, Increases in
a “1/V” fashion for inputs below 25 mV [-30 dBu]
Note 6 System specification including contribution from generator. Generator residual THD
may limit system performance below 25 Hz if output is >20.0 Vrms balanced, or
10.0 Vrms unbalanced.
D Specifications
Appendix D - Specifications
ATS-1 Access User's Manual D-5
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