REL #13 RTB2000, SDS2000x Plus and DSOX1000 Oscilloscopes, Episode 6c FFT Analysis

Episode 6c: FFT Analysis

This is an episode of a functional comparison of the R&S RTB2000, Siglent SDS2000X Plus and Keysight InfiniiVision DSOX1000 oscilloscope series.

The document with an overview of functions is available at https://github.com/RudisElectronicsLa...

Comments, corrections, additions etc. are welcome!


0:00:00 Introduction
0:00:43 A visit of Kickou, the cat
0:05:11 Why using FFT on an oscilloscope?
0:06:48 Main specifications
0:12:27 Test signal generation
0:15:40 SA as reference point

R&S RTB2004
0:21:37 Theme 1: Place on device, sources
0:24:34 Theme 2: Screen modes, H & V controls, axis
0:27:32 Theme 3: Scaling, arithmetic
0:30:35 Theme 4: FFT points, RTB, time base, gates, FFT windows, auto setup
0:34:01 Theme 5: Tools
0:34:58 Theme 6: Documenting
0:37:08 Best achieved representation of the AM modulated sine

Siglent SDS 2000X+
0:44:58 Theme 1: Place on device, sources
0:47:33 Theme 2: Screen modes, H & V controls, axis
0:54:09 Theme 3: Scaling, arithmetic
0:59:09 Theme 4: FFT points, RTB, time base, gates, FFT windows, auto setup
1:01:52 Theme 5: Tools
1:06:51 ….. Intermezzo: revisiting 'sort by peaks'
1:08:20 Theme 6: Documenting
1:12:49 Best achieved representation of the AM modulated sine

Keysight DSOX 1204G
1:16:36 Theme 1: Place on device, sources
1:23:21 Theme 2: Screen modes, H & V controls, axis
1:29:24 Theme 3: Scaling, arithmetic
1:32:55 Theme 4: FFT points, RTB, time base, gates, FFT windows, auto setup
1:33:48 Theme 5: Tools
1:35:57 Theme 6: Documenting
1:36:38 Best achieved representation of the AM modulated sine

1:39:18 LF test: 20kHz sine with 50Hz AM modulation (best achieved results)

1:40:48 Test: fast changing moving waveforms (real-time analysis capabilities)

Use case - Using a scope for measuring conducted interference emissions using a LISN
1:44:44 Introduction
1:50:54 Measurement setup
1:52:59 Reference point: SA
1:55:56 Results with oscilloscopes

2:00:39 Conclusions