Fft analyzer – Atec Rohde-Schwarz-UPV User Manual
Page 19
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Version 03.00, August 2011
Rohde & Schwarz R&S
®
UPV Audio Analyzer 19
Polarity test signal
asymmetrical two-tone signal
(fundamental + 2nd harmonic)
Fundamental frequency
0.1 Hz to 16.6 % of sampling rate
FM signal
Carrier frequency
0.1 Hz to 49.9 % of sampling rate
Modulation frequency
1 µHz to 49.9 % of sampling rate
Modulation
0 % to 100 %
AM signal
Carrier frequency
0.1 Hz to 49.9 % of sampling rate
Modulation frequency
1 µHz to 49.9 % of sampling rate
Modulation
0 % to 100 %
DC voltage
Level range
0 to ±1 FS
Sweep parameters
level
FFT analyzer
digital
DC to 50 % of sampling rate
Frequency range
analog bandwidth 22 kHz /40 kHz /80 kHz/
250 kHz
DC to 22.5 kHz/43.5 kHz/87 kHz/250 kHz
digital 24 bit/32 bit
170 dBFS/220 dBFS
analog bandwidth 22 kHz/40 kHz/80 kHz
120 dB
15
Dynamic range
analog bandwidth 250 kHz
100 dB
15
digital 24 bit/32 bit
–170 dBFS/–220 dBFS
analog bandwidth 22 kHz/40 kHz/80 kHz
–140 dB
15
Noise floor
analog bandwidth 250 kHz
–120 dB
15
FFT size
512, 1k, 2k, 4k, 8k, 16k, 32k, 64k, 128k,
256k points
Window functions
rectangular, Hann, Blackman-Harris,
Rife-Vincent 1-3, Hamming, flat top
15
Relative to the nominal value of the measurement range in V. Valid for measurement ranges ≥ 300 mV and an FFT resolution of 2.93 Hz.