| Specifications apply after 30 minutes warm-up and within 2 hours of last auto-offset. Measured with 400 line resolution and anti-alias filters enabled unless stated otherwise. |
| Measurement Groups |
| Groups |
FFT, Octave Analysis, Swept-Sine |
| Frequency |
| Range |
102.4 kHz or 100 kHz (both displays have the same range) |
| FFT spans |
195.3 mHz to 102.4 kHz or 191 mHz to 100 kHz. The two displays can have different spans and start frequencies. |
| FFT resolution |
100, 200, 400 or 800 lines |
| Real-time bandwidth |
102.4 kHz (highest FFT span with continuous data acquisition and averaging) |
| Accuracy |
25 ppm from 20 °C to 40 °C |
| Dynamic Range |
| Dynamic range |
|
FFT and Octave
Swept-Sine |
90 dB typical, 80 dB guaranteed.
145 dB
Includes spurs, harmonic and intermodulation distortion and alias products. Excludes alias responses at extremes of span. |
| Harmonic distortion |
<-80 dB (single tone in band) |
| Intermod. distortion |
<-80 dB (two tones in band, each less than -6.02 dBfs) |
| Spurious |
<-80 dBfs |
| Alias responses |
<-80 dBfs (single tone outside of span, <0 dBfs, less than 1 MHz) |
| Full-span FFT noise floor |
-100 dBfs typ. (input grounded, >-30 dBV, Hanning window, 64 rms averages) |
| Residual DC response |
<-30 dBfs (FFT with Auto-Cal on) |
| Amplitude Accuracy |
| Single channel |
±0.2 dB (excluding windowing) |
| Cross channel |
±0.05 dB (DC to 102.4 kHz)
(transfer function measurement, both inputs on the same range, rms averaged) |
| Phase Accuracy |
| Single channel |
±3.0 deg. relative to external TTL trigger (-50 dBfs to 0 dBfs, frequency <10.24 kHz, center of frequency bin, DC coupled).
For Blackman-Harris, Hanning, Flat-Top and Kaiser windows, phase is relative to a cosine wave at the center of the time record. For Uniform, Force and Exponential windows, phase is relative to a cosine wave at the beginning of the time record. |
| Cross channel |
±0.5 deg. (DC to 51.2 kHz)
±1.0 deg. (DC to 102.4 kHz)
(transfer function measurement, both inputs on the same input range, vector averaged) |