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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.