Atec Rohde-Schwarz-UPV - Manual (Page 14)

Version 03.00, August 2011
14 Rohde & Schwarz R&S ® UPV Audio Analyzer
Digital audio analyzer measurement functions
All measurements at 24 bit, full scale.
RMS, wideband
Measurement bandwidth
up to 50 % of sampling rate
AUTO FAST ±0.1 dB
AUTO ±0.01 dB
Level error
GEN TRACK ±0.001dB
AUTO FAST/AUTO min. 200/4000 sample, at least 1 cycle
GEN TRACK min. 100 sample, at least 1 cycle
Integration time
VALUE 0.1 ms to 100 s
Spectrum post FFT
DC voltage
Measurement range
0 to ±1 FS
Level error ±1 %
FFT analysis see FFT analyzer section
Total harmonic distortion (THD)
Fundamental
10 Hz to 23.9 % of sampling rate
Frequency tuning automatic to input or generator signal or
fixed through entered value
Weighted harmonics any combination of d
2
to d
9
, up to 21.90 kHz
Error limit ±0.3 dB
Inherent distortion 12 < –155 dB
Spectrum bargraph showing signal and distortion
post-FFT
THD+N and SINAD
Fundamental
10 Hz to 47.9 % of sampling rate
Frequency tuning automatic to input or generator signal or
fixed through entered value
Stopband range fundamental ± 28 Hz,
max. up to 2nd harmonic
Bandwidth upper and lower frequency limit selectable,
one weighting filter in addition
Error limit ±0.3 dB
Inherent distortion 12 bandwidth 20 Hz to 21.90 kHz < –142 dB
Spectrum post FFT
Time domain display (WAVEFORM)
Trigger
rising/falling
Trigger level –1 FS to +1 FS
Trace length max. 480 ksample per channel
Pretrigger max. 19200 sample
Standard mode each sample recorded
Compressed mode peak value of up to 1024 sample recorded
(envelope)
Undersample mode undersampling factor up to 1024
Frequency
Frequency range
20 Hz to 47.9 % of sampling rate
Frequency error ±10 ppm
Phase
Frequency range
20 Hz to 47.9 % of sampling rate
Phase error ±0.4°
12 Total inherent distortion of analyzer and generator.